Hangzhou Shalom Electro-optics Technology Co., Ltd., profile with contact details and 65 photonics product categories

Hangzhou Shalom EO is a professional supplier of a series of achromatic optics, including achromatic waveplates, super-achromatic waveplates, and achromatic doublet lenses.

Shalom EO offers off-the-shelf and custom achromatic waveplates and super-achromatic waveplates. Our standard diameter 25.4 mm achromatic waveplates are composed of one quartz plate and one MgF₂ plate cemented together or with an air gap in between the plates, offering flat retardation response of a quarter wavelength or a half wavelength over three optional wavelength ranges including 450–650 nm, 690–1200 nm, and 900–2000 nm, while other custom wavelength ranges and retardation values are also available. The air spaced achromatic waveplates have an outstanding damage threshold greater than 500 MW/cm², suitable for high power applications.

Shalom EO’s standard super achromatic waveplates consisting of six quartz and MgF₂ plates cemented together deliver ultra-stable retardation over extensive spectral regions, 325–1100 nm and 600–2700 nm (for quarter waveplates), or 310–1100 nm and 600–2700 nm (for half waveplates), in addition to other custom wavelength ranges and retardation values, making our super achromatic waveplate excellent for the altering of polarization state in multi-spectrum context.

Shalom EO’s achromatic lenses or achromatic doublet lenses are available in stock and custom versions, as for the stock versions, selection: an abundant selection of focal lengths 7.5 mm to 1000 mm (for positive achromatic doublet lens) and –100 mm to –20 mm (for negative achromatic doublet lens) are accessible with the lenses in standardized sizes to ensure seamless integration into various optical systems. Coating options include 350–650 nm, 650–1050 nm, 1050–1580 nm AR coatings, or other custom coatings.

Hangzhou Shalom EO offers custom AR coatings, including optical coating design and manufacturing of anti-reflection coatings. Various AR coatings of multiple-layer or single-layer structures are available, like broadband AR (BBAR) coatings, laser line V coatings, dual/multiple wavelength AR coatings, etc. We can tailor the AR coatings that suit different wavelengths and optical substrates.

Hangzhou Shalom EO utilizes the efficient and cost-effective ion-assisted deposition electron beam (IAD e-beam) technique, which enables the creation of denser films with reduced scatter compared to evaporative deposition alone. In our class 1000 clean room coating workshop, we employ leading-edge facilities like SHINCRON MIC-1350TBN coating machines and ultrasonic cleaning machines to clean and fabricate the optical coatings, and we conduct strict inspection for the critical parameters of each batch of optical coatings using up-to-date metrological instruments like PerkinElmer Lambda 1050+ spectrometer, Ultrafast Innovations GOBI white light interferometer.

Besides, Shalom EO also supplies a series of custom optical coatings, comprising high-reflective coatings (both dielectric and metallic), optical filter coatings, beamsplitter coatings, and optical coatings optimized for high-power/ultrafast systems.

Hangzhou Shalom EO offers various types of stock and custom aspheric lenses including plano-convex/concave, biconvex/biconcave, meniscus, ball/half ball versions, etc. We are capable of providing both precision polished and glass-molded aspheric lenses. Shalom EO engages the MRF (magneto-rheological finishing) and SPDT (single point diamond turning) techniques in our production line, where the high-precision polishing technique contributes to true diffraction-limited spot sizes and the lowest wavefront error of the lenses.

Shalom EO’s aspheric lenses include two categories: collimation and condenser lenses. Aspheric collimation lenses are an excellent option for collimating light emerging from fibers or laser diodes. Available substrate materials include optical glass (e.g. N-BK7, fused silica), Ge, ZnSe, Si, and more. Coating options encompass uncoated, MgF₂ single-layer AR coating, laser line V-coating, and BBAR coatings, where a wide selection of diameters is accessible.

In addition, Shalom EO also provides fast axis collimators (FAC lenses) and slow axis collimators (SAC lenses) optimized for laser bars and collimating lights from diode lasers into fibers.

Hangzhou Shalom EO provides ball lenses and half ball lenses made of various substrate materials including sapphire, ruby, BK7, UV fused silica, high index glass, and germanium, ZnSe, ZnS with AR coating. Our ball lenses and half-ball lenses are ideal for applications such as fiber communications, endoscopes, and microscopes.

Available diameters are between 0.3 mm and 300 mm, with surface roughness (Ra) <0.007 µm and a wide AR coating wavelength range. Custom ball and half ball module options are also available on request.

Hangzhou Shalom EO offers stocked and custom beamsplitter cubes including high power polarizing beamsplitter cubes, polarizing beamsplitter cubes, and non-polarizing beamsplitter cubes.

With superb production craft, Shalom EO is capable of delivering beamsplitter cubes with an extinction ratio of an extensive range between 300:1 to 10000:1 and precise dimensional tolerance. Low loss AR coatings of various laser line wavelengths and broadband spectra can be deposited. Shalom EO's beamsplitter cubes are available in cemented or optical-contacted structures. For the high-power laser polarizing beam splitter cubes, Shalom EO utilizes the adhesive-free, optical-contacted method to assemble the constituent prisms, the cubes are high-precision laser-grade polished to ensure minute wavefront distortion and allow optical contact, the beamsplitters exhibit a high laser induced damage threshold LIDT of >15 J/cm² @ 1064 nm, 20 ns, 20 Hz.

In addition, Hangzhou Shalom EO also supplies a wide selection of dichroic filters including longpass dichroic filters, shortpass dichroic filters, dichroic filters for RGB light shows, laser line dichroic filters (various HR or HT coatings at specific wavelengths), and other categories encompassing dichroic bandpass filters, dichroic band stop (notch) filters.

Shalom EO offers various birefringent materials, including: MgF₂ crystals, LiNbO₃ and alpha-BBO crystals, quartz crystals, calcite crystals, and YVO₄ crystals. The crystals exhibit excellent properties when used to make waveplates, Glan and Thompson polarizers, and other optical components. Crystal ingots, blanks, and polished and coated optical elements made of birefringent crystals are offered according to your request.

Shalom EO also offers other optical crystal materials, including: nonlinear crystals, laser crystals, and electric-optical and acousto-optic crystals.

Hangzhou Shalom EO offers custom chirped mirrors optimized for dispersion compensation of ultrashort pulses of ultrafast lasers. Shalom EO's chirped mirrors feature low negative group delay dispersion (GDD), minimized phase distortion and third-order distortion, and high reflectance. In our factory, Shalom EO utilizes accurate and up-to-date GDD metrological instruments to ensure the precise dispersion characteristics of our optical components which guarantees that our products meet the highest standards for pulse compression, dispersion compensation, and other ultrafast optical requirements.

In addition, Shalom EO supplies ultrafast chirped mirror pairs consisting of two matched complementary chirped mirrors. Shalom EO is also a professional supplier of a series of femtoline laser optics, like femtoline low GDD mirrors, ultrafast-enhanced silver mirrors, etc. You might visit our website to learn more.

Diffusion-bonded laser crystals are composite laser crystals consisting of two, three, or more parts crystals with different doping compositions, where the constituent parts are combined through a technique called diffusion bonding. Diffusion bonding laser crystals are usually applied to decrease thermal lensing effects, improve beam quality, and make compact laser modules.

Shalom EO offers diffusion-bonded crystals with copious composition options of combining YAG, Nd:YAG, Cr:YAG, Nd:Ce:YAG, YVO₄, Nd:YVO₄. A diameter range of 2–18 mm and a length range of 2–200 mm is available. Doping percentages and coatings could be tailored upon request.

Shalom EO has developed a capable production workshop that could offer various kinds of custom and off-the-shelf corner cube prisms made of N-BK7, UV fused silica, and other custom materials with diverse coating options like silver/gold coatings, and coatings in the visible, UV, and NIR spectrum.

Shalom EO's main types of corner cube retroreflectors include:

• Standard corner cube retroreflectors of routine choices.
• Truncated corner cube reflectors of lightweight and compact dimensions.
• Lateral transfer corner cube retroreflectors with one trihedral reflecting face at one terminal of the prism and two trihedral reflecting faces forming a roof edge at the other end are designed for applications requiring a lateral beam displacement.
• Customized hollow corner retroreflectors that perform great in low-pressure conditions and mitigate the aberrations derived from glass dispersion and temperature fluctuations.

Hangzhou Shalom EO is an expert supplier and manufacturer of various types of custom optics including lenses, windows, mirrors, prisms, laser optics, super-polished optics, sapphire optics, and infrared optics with a wide operation wavelength range from UV, VIS, to IR.

A vast selection of shapes, dimensions, coatings, and other specifications of the optical components can be tailored to meet customers’ specific requirements.

With cutting-edge production technologies (like IAD e-beam coating, super-polishing, and Kyropoulos sapphire growth method), Shalom EO's engineers and production line are competent at and committed to endowing our optical components with optimized optical excellence. All the optics will go through in-process inspections during the production course and further tests in our class 1000 clean room before despatch to ensure the parameters of optical components meet or exceed the published specifications. Utilizing top-tier metrological instruments such as Zygo interferometers, and PerkinElmer Lambda 1050+ spectroscopes, Shalom EO secures the persistent reliable quality of our optical components.

Shalom EO is a specialized supplier of cylindrical lenses, we provide a full portfolio of cylindrical optical lenses including plano-convex cylindrical lenses plano-concave cylindrical lenses, fast axis collimators and slow axis collimators made of various materials such as fused silica, BK7, optical glass, BaF₂, CaF₂, MgF₂, and ZnSe, etc. Coating options include: uncoated, MgF₂ single layer, V-coating, and broadband AR coating.

With stringent inspection measures carried out using instruments like Zygo interferometer, Shalom EO’s cylindrical lenses are excellent for laser line generation, anamorphic beam shaping, and one-dimensional compression of images in laser scanners, spectroscopes, dye lasers, acousto-optics, optical processors and other similar applications.

Hangzhou Shalom EO offers a full portfolio of custom dielectric coatings, either as complex multi-layer structured for premium performance or simple single-layer structured for lower cost, catering to different spectral regions and various laser/optical components like optical windows, lenses, mirrors, high power laser optics, and ultra-short pulsed laser optics.

The typical examples of dielectric coatings that we provide include the following:

• Anti-reflection/AR dielectric coatings (BBAR/V coating/dual wavelength)
• High-reflective dielectric coatings (BBHR/NBHR/laser line)
• High laser-induced damage threshold (LIDT) dielectric coatings for high-power lasers
• Coatings optimized for ultrafast, femtosecond lasers (femtoline low GDD, chirped mirror coating)
• Optical filter coating (bandpass/edge filter/band stop/dichroic), a maximum optical density of OD6 can be achieved
• Beamsplitter coating (polarizing/non-polarizing)

Hangzhou Shalom EO utilizes the efficient and cost-effective ion-assisted deposition electron beam (IAD e-beam) technique, which enables the creation of denser films with reduced scatter compared to evaporative deposition alone. In our class 1000 clean room coating workshop, we employ leading-edge facilities like SHINCRON MIC-1350TBN coating machines and ultrasonic cleaning machines to clean and fabricate the optical coatings, and we conduct strict inspection for the critical parameters of each batch of optical coatings using up-to-date metrological instruments like PerkinElmer Lambda 1050+ spectrometer, Ultrafast Innovations GOBI white light interferometer.

Shalom EO offers a wide selection of off-the-shelf and custom dielectric mirrors, inclduing broadband dieletric mirrors, laser line dielectric mirrors. Shalom EO’s meticulously engineered dielectric mirror coatings ensure high reflectance across extensive broadband spectra or various laser line wavelengths over different AOIs. The mirror substrates are made of Corning UV-grade fused silica or other custom material, delivering durable mechanical and thermal properties. High precision is achieved with high surface flatness of λ/10 and high surface quality of 10/5 S/D. Our dielectric mirrors are ideal for miscellaneous kinds of lasers including YAG laser, LD laser, HeNe laser, Yb:KGW/KYW 1H laser, Ar⁺ laser, Ti:sapphire laser, etc.

Besides the conventional dielectric mirrors, Shalom EO also specializes in offering other special dielectric mirrors for more demanding applications, including femtoline low GDD mirrors and chirped mirrors for ultrafast and femtosecond lasers, and high power laser mirrors with a damage threshold >20 J/cm² @ 1064 nm, 10 ns, 10 Hz pulses at design wavelengths of 1064 nm, 1030 nm, and 1050 nm.

Hangzhou Shalom EO offers Pockels cells and based on DKDP, BBO, LiNbO₃ and MgO:LiNbO₃ crystals. Shalom EO’s Pockels cells, available in stock and custom versions, deliver the competitive edges of excellent optical transmission at your wavelengths of interest, low half-wave voltage, high damage threshold, and low insertion loss for ideal applications like pulse picking and laser cavity dumping. Various standard and custom extinction ratios are available.

In addition, Shalom EO also provides off-the-shelf and custom electro-optic crystals for EO modulation. The crystals feature rich dimension/orientation options, and large apertures, while also boasting high-precision polishing and different kinds of coatings, Cr–Au electrodes can be deposited. Various substrate materials are available: DKDP, BBO, LiNbO₃, MgO:LiNbO₃, TeO₂, and HGTR-KTP crystals. EO modulation crystals could be offered in the forms of crystal boules, crystal blanks, and crystals with AR coatings and electrodes.

Hangzhou Shalom EO offers standard and custom Pockes cells made of DKDP, BBO crystals and LiNbO₃ or MgO:LiNbO₃ crystals.

Shalom EO’s DKDP Pockels cells feature high deuteration (>98%), low capacitance and fast rise time, and high transmission, high extinction ratio, with a maximum aperture of 50 mm is available.

Shalom EO’s LiNbO₃ and MgO:LiNbO₃ Pockels cells are excellent choices for ultraviolet (UV) lasers to infrared lasers with long operating wavelengths up to 4 μm. LiNbO₃ Pockels cells are specially preferable for Er:YAG, Ho:YAG and Tm:YAG lasers.

Our BBO Pockels cells have significant advantages in terms of high damage threshold, low insertion loss, high extinction ratio, minimal piezoelectric ringing, and competitive price. BBO Pockels cells with both single and double BBO crystal designs and low-voltage geometries are available upon request.

Hangzhou Shalom EO also offers polished and AR-coated DKDP, BBO and LiNbO₃ and MgO:LiNbO₃ crystals with Cr–Au electrodes which can be used as central components of Pockels cells.

Hangzhou Shalom EO offers custom fiber end caps made from quartz or fused silica, and various custom glass materials with custom AR coatings. Our fiber end caps are colorless, which enables even beam expansion in inhomogeneous media. The end caps introduce little beam distortion and have a high damage threshold. Our fiber end caps can have either a stem or a tapered lead-in section with a special inclined angle at one terminal of the cap to help splice into the fiber.

Shalom EO's fiber end caps also excel in minimized power absorptions and high precision. With these merits, our fiber end caps become attractive alternatives for clients seeking products with competitive prices in the market and reliable performance in the long run.

Hangzhou Shalom EO offers a vast selection of nonlinear optical crystals for frequency doubling, also known as second harmonic generation (SHG). Shalom EO supplies different kinds of NLO crystals including BBO crystals, CLBO crystals, KDP and KD^*P, KTA, [PPLN waveguides, LBO, KTP, HGTR KTP, BIBO, LiNbO₃ and MgO:LiNbO₃ crystals, YCOB, in addition to the infrared nonlinear crystals ZnGeP₂ (ZGP) and LiIO₃. Miscellaneous coating options including uncoated, AR, HR, HT, PR coatings, electrodes, and custom coatings are available.

Both off-the-shelf and customized products are available. The crystals can be offered in the form of ingots, blanks, and laser-grade polished elements.

Recent days, Shalom EO launched CLBO (cesium lithium borate) crystals. Processed and polished in low humidity workshop, our CLBO crystals feature excellent performance in UV, vacuum UV (VUV), and deep UV (DUV) wavelength ranges.

Ultra-thin nonlinear crystals for femto-line lasers are also available.

Shalom EO offers a vast selection of nonlinear optical crystals for frequency quadrupling, also known as fourth harmonic generation (FHG). Shalom EO supplies different kinds of NLO crystals including BBO crystals, CLBO crystals, KDP and KD^*P, KTA, PPLN waveguides, LBO, KTP, HGTR KTP, BIBO, LiNbO₃ and MgO:LiNbO₃ crystals, YCOB, in addition to the infrared nonlinear crystals ZnGeP₂ (ZGP) and LiIO₃. Miscellaneous coating options including uncoated, AR, HR, HT, PR coatings, electrodes, and custom coatings are available.

Both off-the-shelf and customized products are available. The crystals can be offered in the form of ingots, blanks, and laser-grade polished elements.

Recent days, Shalom EO launched CLBO (cesium lithium borate) crystals. Processed and polished in low humidity workshop, our CLBO crystals feature excellent performance in UV, vacuum UV (VUV), and deep UV (DUV) wavelength ranges.

Ultra-thin nonlinear crystals for femto-line lasers are also available.

Shalom EO offers a vast selection of nonlinear optical crystals for frequency tripling, also known as third harmonic generation (3 HG). Shalom EO supplies different kinds of NLO crystals including BBO crystals, CLBO crystals, KDP and KD^*P, KTA, PPLN waveguides, LBO, KTP, HGTR KTP, BIBO, LiNbO₃ and MgO:LiNbO₃ crystals, YCOB, in addition to the infrared nonlinear crystals ZnGeP₂ (ZGP) and LiIO₃. Miscellaneous coating options including uncoated, AR, HR, HT, PR coatings, electrodes, and custom coatings are available.

Both off-the-shelf and customized products are available. The crystals can be offered in the form of ingots, blanks, and laser-grade polished elements.

Recent days, Shalom EO launched CLBO (cesium lithium borate) crystals. Processed and polished in low humidity workshop, our CLBO crystals feature excellent performance in UV, vacuum UV (VUV), and deep UV (DUV) wavelength ranges.

Ultra-thin nonlinear crystals for femto-line lasers are also available.

Shalom EO offers a wide range of infrared optics – not only singlet IR optical lenses, IR optical windows and IR domes, but also lens modules designed for MWIR (3–5 μm) and LWIR (8–12 μm) thermal imaging cameras. A variety of specific infrared optical materials are available: germanium, zinc selenide (ZnSe), zinc sulfide (ZnS), chalcogenide glass, silicon, sapphire and fluoride (CaF₂, BaF₂, MgF₂ and LiF). Our fabrication techniques include conventional polishing and diamond turning. Moreover, multiple types of modules with flat, spherical and aspherical optical surfaces are optional for different requirements. Referring to the thermal imaging lenses, Hangzhou Shalom EO offers standard lenses and hundreds of custom free-designed lens modules (e.g. athermalized lenses, fisheye lenses, single FOV, dual FOV, zoom lenses).

Further, our infrared windows can be used at 0.75 μm to 20 μm and our infrared lenses are suitable in a wide spectral range from 700 nm to 20000 nm. Infrared domes are suitable for 3 μm to 12 μm. AR coating options include broadband anti-reflection coatings (BBAR), long-pass anti-reflection coatings and hard diamond-like carbon (DLC) coating for application in harsh environments.

Hangzhou Shalom EO offers a diverse collection of large diameter optics, with a diameter range of 0.2 mm – 300 mm. With cutting-edge crafts, Shalom EO is capable of providing different types of optics including optical lenses (ball lenses, aspheric lenses, etc.), optical mirrors, high-power laser mirrors, optical windows, infrared domes of large sizes at a maximum of 300 mm, accommodating to an extensive range of requirements. A large amount of stocked and custom optical components with various dimensions, shapes, coating wavelength ranges, and specifications are available.

All the optics will go through in-process inspections during the production course and further tests in our class 1000 clean room before despatch to ensure the parameters of optical components meet or exceed the published specifications. Utilizing top-tier metrological instruments such as Zygo interferometers, and PerkinElmer Lambda 1050+ spectroscopes, Shalom EO secures the persistent reliable quality of our optical components.

Shalom EO offers various kinds of laser crystals, including: Nd:YAG, Nd:Ce:YAG, Nd:YVO₄, CTH:YAG, Er:YAG, Yb:YAG, Ti:sapphire crystals and diffusion-bonded crystals. Nd:YAG and Nd:YVO₄ are popular crystals for 1064-nm lasers, Nd:Ce:YAG, CTH:YAG, and Er:YAG crystals are often used in the medical and cosmetic lasers, Ti:sapphire is for ultrafast lasers, Alexandrite is for long-pulsed and picosecond 755-nm lasers, diffusion bonding crystals are useful for OEM compact lasers.

Shalom EO offers various rare-earth-doped laser crystals, including:

• Nd:YAG
• Nd:Ce:YAG
• Nd:YVO₄
• CTH:YAG
• Er:YAG
• Yb:YAG
• Ti:sapphire

We also have diffusion-bonded crystals. Nd:YAG and Nd:YVO₄ are popular crystals for 1064-nm lasers, Nd:Ce:YAG, CTH:YAG, and Er:YAG crystals are often used in the medical and cosmetic lasers, Ti:sapphire is for ultrafast lasers, alexandrite is for long-pulsed and picosecond 755-nm lasers, diffusion bonding crystals are useful for OEM compact lasers.

Hangzhou Shalom EO is a professional supplier of laser line optics we have expert technical experience in offering:

• laser line mirrors, consisting of Corning UV fused silica substrates and high-reflectance dielectric coatings at a wide AOI range of 0–45°
• high power laser mirrors with a laser damage threshold of >20 J/cm² @ 1064 nm, 10 ns, 10 Hz pulses
• optical components for femtosecond lasers, like chirped mirrors/mirror pairs, femtoline low GDD mirrors, optimized for femtosecond and ultrafast pulsed lasers
• Laser line filters, with 8–10 nm narrowband bandwidth and standard central wavelength range of 337.1–1550 nm, accommodating to GaAIAs, N₂, XeF, Nd:YAG, Ar, Kr, InGaAsP lasers.

Hangzhou Shalom EO offers a wide range of laser mirrors, including UVFS dielectric broadband mirrors, UVFS laser line mirrors, BK7/UVFS metallic mirrors, femtoline low-GDD mirrors, high power laser mirrors, chirped mirrors and pairs, ultrafast-enhanced silver mirrors, super polished mirrors and mirror blanks. In addition, we also provide CO₂ laser mirrors.

Shalom EO utilizes a set of premium coatings e.g. (dielectric coatings, enhanced Al coatings, protective silver and gold coatings, and low GDD coating technologies for ultrafast applications) to achieve the optimum optical results. The use of leading-edge equipment, such as Zygo interferometers and PerkinElmer Lambda 1050+ spectroscopes, allows Shalom EO to maintain rigorous quality standards for our laser mirrors. Our high power laser mirror can achieve a damage threshold of >20 J/cm² @ 1064 nm, 10 ns, 10 Hz pulses.

High precision laser grade mirrors are one of Shalom EO’s special know-how. Those mirrors feature high flatness, high damage threshold, and superior surface quality. Both off-the-shelf and customized laser mirrors are available for our customers.

Shalom EO’s catalogue of laser optics including, where Shalom EO keep a rigorous quality control to ensure precise manipulation of laser beams:

• laser lenses, CO₂ laser focusing lenses
• laser windows (UV, VIS, NIR and IR windows made of MgF₂, CaF₂ or UV fused silica, optical glass, Ge, ZnSe, sapphire, silicon, etc.)
• laser mirrors (with dielectric coating, enhanced Al coatings, protective silver or gold coating, low GDD coatings), high power laser mirrors with LIDT of >20 J/cm² @ 1064 nm, 10 ns, 10 Hz pulses
• laser prisms (including right angle prisms, corner cube retroreflectors, wedge, Brewster angle and equilateral prisms etc.)
• laser filters
• polarizers, beamsplitters, and waveplates and retarders
• optical components for femtosecond lasers

Through the use of cutting-edge instruments, including Zygo interferometers and PerkinElmer Lambda 1050+ spectroscopes, Shalom EO maintains the unwavering quality of our optical components.

Hangzhou Shalom EO offers two kinds of OEM laser modules: eye-safe 1535-nm laser modules and lasers integrated with MgO:PPLN waveguides. Shalom EO’s OEM laser modules provide precise, reliable, and efficient laser sources that can be seamlessly integrated into other systems, accommodating specific application requirements.

Shalom EO’s 1535-nm eye-safe OEM pulsed lasers use Er:Yb:glass as the laser gain media and Co:MgAl₂O₄ (Co:spinel) as the passive Q-switch, generating laser pulses of nanoseconds of pulse duration. With a wavelength of 1535 nm, the lasers are designed to minimize the risk of retinal or corneal damage. Modules with a low repetition rate of 10 Hz and a high repetition rate of up to 1 kHz are available. With rugged design and superior temperature resistance, Shalom EO’s 1535-nm laser modules are excellent for applications such as laser range finders, Lidar, and medical treatments.

Shalom EO’s MgO:PPLN laser module utilizes an MgO:PLLN waveguide as the nonlinear frequency conversion component, which is assembled with the pumping LD, Nd:YVO₄ or Nd:YAG laser crystals, and optics. Shalom EO offers a range of standard output wavelengths, including 473 nm, 532 nm, 545 nm, 561 nm, and 671 nm. In addition, we can accommodate custom output wavelengths upon request. Our MgO:PPLN waveguides are designed with compact dimensions, these laser modules feature high output power, strong power stability, and exceptional conversion efficiencies.

Hangzhou Shalom EO specializes in offering a vast selection of stock and custom optical lenses made of glass (SCHOTT N-BK7, Corning UV fused silica), CaF₂, sapphire, and other infrared transmitting materials like Ge, ZnSe and Si. Standard AR coatings and coatings with custom spectral properties are available. In addition, Shalom EO also provides abundant choices of lens sizes and focal lengths.

Shalom EO supplies a wide range of lens types, including:

• plano-convex lenses and plano-concave lenses
• biconvex and biconcave lenses
• ball and half-ball lenses
• achromatic doublet lenses
• meniscus lenses
• cylindrical lenses (including fast axis collimators and slow axis collimators)
• aspheric lenses (precision polished or glass molded)
• rod lenses
• axicons

Hundreds of stocks are accessible in our inventories, and different precision requirements such as laser-grade precision can be met with our state-of-the-art production competence.

Besides, Shalom EO also supplies focusing lenses for CO₂ lasers, and infrared lenses for thermal imaging cameras.

Metal-coated mirrors have several important characteristics, including a wide reflective spectral range, low cost, and being non-sensitive to the incidence angle and polarization state. However, the disadvantages of metallic mirrors compared to dielectric mirrors include lower reflectance and laser damage threshold.

Shalom EO offers two types of metallic mirrors based on N-BK7 or UV fused silica mirror substrates: N-BK7 metal-coated mirrors and UV fused silica metallic coated mirrors, with coating options including enhanced Al coating, protective Ag coating or protective Au coating and flatness options of λ/10 or λ/4. Both off-the-shelf and custom metal mirrors are offered.

Hangzhou Shalom EO offers a diverse collection of micro-optics with a diameter range of 0.2 mm – 300 mm. With cutting-edge crafts, Shalom EO is capable of providing different types of optics including optical lenses (ball lenses, aspheric lenses, etc.), optical mirrors, high-power laser mirrors, optical windows, infrared domes of large sizes at a minimum of 0.2mm, accommodating to an extensive range of requirements. A large amount of stocked and custom optical components with various dimensions, shapes, coating wavelength ranges, and specifications are available.

All the optics will go through in-process inspections during the production course and further tests in our class 1000 clean room before despatch to ensure the parameters of optical components meet or exceed the published specifications. Utilizing top-tier metrological instruments such as Zygo interferometers, and PerkinElmer Lambda 1050+ spectroscopes, Shalom EO secures the persistent reliable quality of our optical components.

Discover the pinnacle of technologies with Shalom EO’s optical mirrors, where our diverse catalogs of mirror types like dielectric broadband mirrors, laser line mirrors, metallic mirrors, femtoline low-GDD mirrors, high power laser mirrors, chirped mirrors and pairs, ultrafast-enhanced silver mirrors, super polished mirrors and mirror blanks cater to all sorts of demands. In addition, we also provide CO₂ laser mirrors.

Shalom EO utilizes a set of cutting-edge coating technologies e.g. (dielectric coatings, enhanced Al coatings, protective silver and gold coatings, and low GDD coating technologies for ultrafast applications) to achieve the optimum optical results. Our high power laser mirror can achieve a damage threshold of >20 J/cm² @ 1064 nm, 10 ns, 10 Hz pulses.

Backed by state-of-the-art production techniques, Shalom EO is capable of providing both standard grade optical mirrors with price competitiveness and high precision optical mirrors with high flatness, high damage threshold, and good surface quality optimized for lasers. Both off-the-shelf and customized laser mirrors are available for our customers.

Hangzhou Shalom EO offers neutral density filters which enable effective attenuation of light intensities without compromising spectral integrities. Our neutral density filters cover wide spectral ranges, UV ND filters (250–380 nm), VIS ND filters (400–700 nm), VIS-NIR ND filters (400–1100 nm) are available. Continuously variable neutral density filters like circular variable ND filters and rectangular variable ND filters are also accessible.

In addition, Shalom EO provides colored glass absorbtive ND filters made of colored glass materials equivalent to SCHOTT or HOYA and germanium substrate IR ND filters, which utilizes a combination of absorption and reflection to reduce the intensities of light.

Shalom EO offers a vast selection of nonlinear crystals, including BBO, CLBO crystals, KDP and KD^*P, LBO, KTP, HGTR KTP, KTA, BIBO, LiIO₃, LiNbO₃, MgO:LiNbO₃, RTP, ultra-thin BBO, LBO crystals and infrared nonlinear crystals ZnGeP₂ (ZGP). KGW crystals for stimulated Raman scattering are also available.

Our nonlinear crystals are excellent for applications ranging from frequency conversion to short-pulse generation. The NLO crystals offer reliable performance for harmonic generation (SHG, THG, 4HG, 5HG), sum and difference frequency generation (SFG, DFG), for optical parametric oscillators (OPOs) and optical parametric amplifiers (OPAs). Off-the-shelf and customized crystals are optional for our customers. Miscellaneous coating options including uncoated, AR, HR, HT, PR coatings, and custom coatings can be tailored. All the crystals will undergo rigorous inspection before dispatch.

Recent days, Shalom EO has launched CLBO crystals. The ClBO processed and polished in low humidity workshop are ideal for FHOG and FIHG for Nd: lasers, SHG and THG for Ti:sapphire and Alexandrite lasers, and micro-lithography.

In addition, electro-optic (EO) crystals and acousto-optic (AO) crystals are also available.

Shalom EO offers a vast selection of nonlinear crystals, including BBO, KDP and KD^*P, LBO, KTP, HGTR KTP, KTA, BIBO, LiIO₃, LiNbO₃, MgO:LiNbO₃, RTP, ultra-thin BBO, LBO crystals and infrared nonlinear crystals ZnGeP₂ (ZGP).

Our nonlinear crystals are excellent for applications ranging from frequency conversion to short-pulse generation. The NLO crystals offer reliable performance for harmonic generation (SHG, THG, 4HG, 5HG), sum and difference frequency generation (SFG, DFG), for optical parametric oscillators (OPOs) and optical parametric amplifiers (OPAs). Off-the-shelf and customized crystals are optional to our customers. Miscellaneous coating options including uncoated, AR, HR, HT, PR coatings, and custom coatings can be tailored. All the crystals will undergo rigorous inspection before dispatch.

Hangzhou Shalom EO offers two types of stock and custom OEM laser modules: eye-safe 1535-nm laser modules and MgO:PPLN waveguide laser modules for second harmonic generation (SHG). Both are compact in size and allow easy integration.

Our 1535-nm laser modules containing Er:Yb:glass as the gain medium and Co:MgAl₂O₄ (Co:spinel) as a passive Q-switch, are exceptional for applications like laser range finders, LIDAR, and medical treatments.

The MgO:PPLN laser modules use MgO:PPLN for frequency conversion, with output wavelengths of 473 nm, 532 nm, 545 nm, 561 nm, and 671 nm. Modules of different dimensions, output powers, and modes are available.

With a high degree of expertise, Hangzhou Shalom EO excels at offering a diverse catalog of optical crystals, including:

• laser crystals
• nonlinear crystals
• electro-optic (EO) crystals and acousto-optic (ao) crystals
• birefringent crystals for laser applications
• sapphire crystals for optical components, in addition to sapphire windows and sapphire optical elements of various custom shapes
• KGW (potassium gadolinium tungstate) crystals for stimulated Raman scattering

Where Shalom EO’s flexible and advanced production line and inspection lab are capable of providing high-quality optical crystals in various forms (ingots, blanks, polished substrates, or coated ), shapes, dimensions, and different doping concentrations. Through the use of cutting-edge instruments, including Zygo interferometers and PerkinElmer Lambda 1050+ spectroscopes, Shalom EO maintains the unwavering quality of our optical components.

Hangzhou Shalom EO offers optical domes manufactured using various substrate materials: sapphire, BK7, hot-pressed MgF₂, CVD and multispectral ZnS, ZnSe and germanium for operations both in the UV and IR spectra range.

While sapphire domes offer unrivaled hardness and good transmission in the MWIR region, hot-pressed MgF₂ domes are excellent for the MWIR band with the additional benefit of thermal stability and decent mechanical hardness, and ZnSe domes and germanium domes are good choices for 3 μm to 12 μm covering the MWIR and LWIR region. CVD and multispectral ZnS domes provide superior thermo-mechanical properties and fracture strength, contributing to high endurance in hostile environments. The dimensions of the domes also come in a rich selection. The domes could be furnished with anti-reflection coatings or DLC (diamond Like Carbon) coatings.

Hangzhou Shalom EO is a professional supplier of optical filters, with a strong focus on technical expertise, we leverage advanced manufacturing technologies and precision metrological approaches to deliver optical filters for accurate and flexible control of the spectral characteristics of light.

Shalom EO provides an extensive range of stock and custom optical filters, including bandpass filters, long pass filters, short pass filters, fluorescence filters, neutral density filters, dichroic filters, notched filters, colored glass absorptive filters, IR filters, laser line filters, biochemical optical filters, machine vision filters, linear variable filters, multispectral filters, and pixel-level filters.

Harnessing cutting-edge advancements in a combination of substrate material engineering, coating, and processing techniques, Shalom EO aims to optimize the selection and separation capabilities of our optical filters, that a maximum optical density of OD6 can be obtained. With a vast list of inventories and miscellaneous custom specifications, our optical filters cover wavelength ranges from UV to IR, where various bandwidths are available.

Hangzhou Shalom EO is a professional supplier of various optical materials, we offer a comprehensive range of optical materials for different applications across diverse spectral regions, including:

• Laser crystals: Shalom EO supplies a wide range of laser gain media for laser generation like rare-earth doped YAG crystals, Ti:sapphire and alexandrite laser crystals, diffusion bonding laser crystals.
• Nonlinear Crystals: We can offer BBO crystals, KDP/DKDP, LBO crystals, BiBO, LiNbO₃, and MgO:LiNbO₃, KTP/HGTR KTP, KTA, LiIO₃ etc., excellent for nonlinear frequency conversions and electro-optical/acousto-optical modulations. We have also newly launched CLBO crystals ideal for harmonic generation to obtain laser output at DUV or VUV wavelengths. The nonlinear crystals are available as off-the-shelf and custom versions, and coating options include uncoated, AR, HR, HT, PR coatings, and custom coatings.
• Deep UV, Vacuum UV Optics and Crystals, Shalom EO provides CaF₂, MgF₂, and LiF crystals and optics with ultra-high transmission in the 193–248 nm deep UV and the 150–200 nm vacuum UV. The DUV and VUV crystals and optics are excellent for excimer lasers, astronomical telescopes, and UV photolithography.
• Electro-optic (EO) crystals and Acousto-optic (AO) crystals, including DKDP, BBO, LiNbO₃, MgO:LiNbO₃, TeO2, and HGTR-KTP crystals, cystals could be offered in the forms of crystal boules, crystal blanks, and crystals with AR coatings and electrodes.
• Passive Q-switch crystals, including Cr⁴⁺:YAG, Co²⁺:MgAl₂O₄, and V³⁺:YAG.
• Birefringent crystals, including YVO₄, LiNbO₃, quartz, calcite, MgF₂, and alpha-BBO crystals.
• MgO:PPLN crystals and waveguides Stock and custom periodically poled lithium niobate (PPLN) crystals doped with MgO for SHG, DFG, SFG, OPO, and OPA.

Hangzhou Shalom EO offers off-the-shelf and custom Pockels cells, we can provide off-the-shelf and customized BBO, DKDP, LiNbO₃ and MgO:LiNbO₃ Pockels cells for electro-optical modulation.

• The DKDP Pockels cells are of the longitudinal type. They feature high deuteration (>98%), fast rise time, and a maximum aperture of 50 mm.
• The BBO Pockels cells are the best choice for high reptition rate Q-switching, with the additional advantages of high damage threshold and low insertion loss.
• The LiNbO₃ and MgO:LiNbO₃ Pockels cells are of the transverse type. They have large electro-optic coefficients, good transmission up to 4.0 µm, and low half wave voltage. Aperture sizes of 2.5 mm to 9 mm are available.

In addition, we also provide RTP Q-switches, and electro-optical and acoustic-optical crystals (BBO, DKDP, LiNbO₃ / MgO:LiNbO₃, TeO₂) which are the core elements used in optical modulators and Pockels cells.

Hangzhou Shalom EO stands out as a leading supplier of a series of off-the-shelf and custom optical windows. Shalom EO offers:

• optical glass windows (N-BK7 and UV fused silica) of lambda/4 or lambda/10 flatness, high-precision laser windows and ultra-thin high flatness optical windows for femtosecond lasers. We are capable of achieving a minimum size down to 0.5 mm and a minimum thickness down to 0.03 mm.
• sapphire windows (standard as uncoated, c-cut or custom)
• infrared optical windows made of BaF₂, CaF₂, germanium, silicon, zinc selenide (ZnSe) and sapphire are also accessible

Through implementing in-process quality control and optical inspection using cutting-edge instruments, like Zygo interferometers and PerkinElmer Lambda 1050+ spectroscopes, Hangzhou Shalom EO is capable of providing high-precision optical windows enhanced with diverse coating options, offering reliable solutions for demanding applications.

Periodically poled lithium niobate (PPLN) crystal is a type of nonlinear optical crystal with distinguished high conversion efficiencies and a wide transparency range of 0.4–5 μm. The 5% MgO doping in LiNbO₃ improves the damage threshold of the PPLN to a significant extent and broadens its phase-matching bandwidth. MgO:PPLN crystals exhibit a unique quasi-phase-matching (QPM) phenomenon, which allows the utilization of a higher nonlinear coefficient than in the case of birefringent phase matching

Shalom EO offers standard and off-the-shelf MgO:PPLN crystal and waveguides for SHG of 976 nm to 2100 nm and for various up-conversion and down-conversion applications including DFG, SFG, OPO, and OPA. Different dimensions, MgO concentrations, and AR coatings are available for selection.

Hangzhou Shalom EO offers standard and custom Pockes cells made of DKDP, BBO crystals and LiNbO₃ or MgO:LiNbO₃ crystals.

Shalom EO’s DKDP Pockels cells feature high deuteration (>98%), low capacitance and fast rise time, and high transmission, high extinction ratio, with a maximum aperture of 50 mm.

Shalom EO’s LiNbO₃ and MgO:LiNbO₃ Pockels cells are excellent choices for ultraviolet (UV) lasers to infrared lasers with long operating wavelengths up to 4 μm. LiNbO3 Pockels cells are specially preferable for Er:YAG, Ho:YAG and Tm:YAG lasers.

Our BBO Pockels cells have significant advantages in terms of high damage threshold, low insertion loss, high extinction ratio, minimal piezoelectric ringing, and competitive price. BBO Pockels cells with both single and double BBO crystal designs and low-voltage geometries are available upon request.

Hangzhou Shalom EO also offers polished and AR-coated DKDP, BBO and LiNbO₃ and MgO:LiNbO₃ crystals with Cr-Au electrodes which can be used as central components of Pockels cells.

Hangzhou Shalom EO offers a full portfolio of off-the-shelf and custom polarizers, comprising: Glan laser polarizers, Glan–Taylor polarizers, Glan–Thompson polarizers, Wollaston prisms, Rochon prisms, polarization plane rotators, and achromatic depolarizers.

Shalom EO utilizes various birefringent crystals including Calcite, Alpha-BBO, YVO₄, MgF₂, and quartz, with their transmission spectrum spanning from UV, VIS, to IR to fabricate our non-cubic polarizers. Anti-reflection coatings (single layer MgF₂ coating, broadband AR coating, and laser line wavelength V coating) and protective coatings are available both as standard and custom versions. Unique designs of the construction of the polarization optics are accessible, including air-gap, cement, black glass, and escape ports.

In addition, Shalom EO also supplies polarizing beamsplitter cubes (PBS cubes) with a maximum extinction ratio of T_p / T_s = 10000:1, high laser damage threshold, and minimized scattering loss.

A set of waveplates and retarders are available as well, such as super achromatic/achromatic waveplates, zero order waveplates, liquid crystal polymer waveplates.

With decades of professional experience and a profound engineering background, Hangzhou Shalom EO delivers a full portfolio of optical prisms ideal for light deviation, rotation/inversion of the image, beam steering/aligning, etc. where versatile characteristic of our prisms allows for their widespread applications in periscopes, binoculars, lasers, interferometers, spectroscopes, cameras, laser rangefinders.

Shalom EO supplies diverse prism types, including: right angle prisms, corner cube retroreflectors, wedge prisms, Brewster angle prisms, and equilateral prisms, in addition to Penta prisms, dove prisms, roof prisms, and Porro prisms. There is a wide selection of materials: BK7, N-BK7, UV-grade fused silica, N-SF11, CaF₂, Ge and ZnSe. Coating options include uncoated, MgF₂ AR coating, broadband AR coating, and laser line wavelength V-coating.

Shalom EO is an expert supplier of optical prisms, we implement both in-process quality control and optical inspection for finished products, where Shalom EO leverages state-of-the-art metrological equipment, such as Zygo interferometers and PerkinElmer Lambda 1050+ spectroscopes, to uphold the consistent reliability of our optical components.

Hangzhou Shalom EO offers standard and custom Q switches made of DKDP, BBO crystals and LiNbO₃ or MgO:LiNbO₃ crystals.

Shalom EO’s DKDP Pockels cells feature high deuteration (>98%), low capacitance and fast rise time, and high transmission, high extinction ratio, with a maximum aperture of 50 mm.

Shalom EO’s LiNbO₃ and MgO:LiNbO₃ Pockels cells are excellent choices for ultraviolet (UV) lasers to infrared lasers with long operating wavelengths up to 4 μm. LiNbO₃ Pockels cells are specially preferable for Er:YAG, Ho:YAG and Tm:YAG lasers.

Our BBO Pockels cells have significant advantages in terms of high damage threshold, low insertion loss, high extinction ratio, minimal piezoelectric ringing, and competitive price. BBO Pockels cells with both Single and double BBO crystal designs and low-voltage geometries are available upon request.

Hangzhou Shalom EO also offers polished and AR-coated DKDP, BBO and LiNbO₃ and MgO:LiNbO₃ crystals with Cr–Au electrodes which can be used as central components of Pockels cells.

Hangzhou Shalom EO offers various rare-earth-doped laser crystals, including:

• Nd:YAG
• Nd:Ce:YAG
• Nd:YVO₄
• CTH:YAG
• Er:YAG
• Yb:YAG
• Ti:sapphire
• diffusion-bonded crystals consisting of two, three, or more parts crystals with different doping compositions.

Nd:YAG and Nd:YVO₄ are popular crystals for 1064-nm lasers, Nd:Ce:YAG, CTH:YAG, and Er:YAG crystals are often used in the medical and cosmetic lasers, Ti:sapphire is for ultrafast lasers, alexandrite is for long-pulsed and picosecond 755-nm lasers, diffusion-bonded crystals are useful for OEM compact lasers. We ensure an extensive selection of specifications and consistent quality in every production stage from crystal growth, processing, and polishing to coating.

Hangzhou Shalom EO has developed a capable production workshop that could offer various kinds of custom and off-the-shelf corner cube retroreflectors made of N-BK7, UV fused silica, and other custom materials with diverse coating options like silver/gold coatings, and coatings in the visible, UV, and NIR spectrum.

Shalom EO's main types of corner cube retroreflectors include:

• Standard corner cube retroreflectors of routine choices
• Truncated corner cube reflectors of lightweight and compact dimensions
• Lateral transfer corner cube retroreflectors with one trihedral reflecting face at one terminal of the prism and two trihedral reflecting faces forming a roof edge at the other end are designed for applications requiring a lateral beam displacement.
• Customized hollow corner retroreflectors that perform well in low-pressure conditions and mitigate the aberrations derived from glass dispersion and temperature fluctuations.

Hangzhou Shalom EO offers rod lenses a series of custom Rod Lenses made from various optical materials such as, but not limited to UV-fused silica, N-BK7. The transmission wavelength range of our rod lenses extends from UV, Visible, to NIR with a minimum diameter of 0.6 mm, roundness error down to 0.005 mm, and diameter tolerance down to 0.01 mm. Our rod lenses are ideal for applications as endoscope lenses, light pipes, and laser processing lenses.

Custom coating options for rod lenses include uncoated substrates, Broadband Anti-reflection (BBAR) coatings (average reflection below 0.5%), laser line V-coating which provides higher transmission (average reflection below 0.25%) at a narrower range around a certain wavelength, and MgF₂ AR coatings (average reflection below 1.5%) with competitive low price.

Hangzhou Shalom EO is an leading global supplier of scintillation detectors consisting of scintillators, PMT, or other electronic accessories, offering advanced technical excellence for a wide range of industries. Shalom EO provides scintillator detectors based on various scintillation crystals including NaI(Tl), CsI(Tl), CsI(Na), LYSO(Ce), BGO, LaBr₃(Ce), LaCl₃(Ce) and plastic scintillators. The scintillation assemblies are encapsulated hermetically in aluminum or stainless steel housings with optical glass windows, and our PMT is sourced from Beijing Hamamatsu, ET, or other suppliers.

The electronic accessories that Shalom EO supplies for the scintillation detectors include voltage dividers, preamplifiers, and high voltage modules. Connectors are available as well upon request. All electronic modules are guaranteed for 12 months.

Shalom EO offers a wide assortment of inorganic scintillation crystals including NaI(Tl), LYSO(Ce), CsI(Tl), low-afterglow CsI(Tl), CsI(Na), BGO, YAG(Ce), YAP(Ce), CaF₂(Eu), BaF₂, CdWO₄, GAGG(Ce), LuAG(Ce), RGBS, YSO(Ce), LaBr₃(Ce), LaCl₃(Ce) and CeBr₃ crystals, in addition to GOS ceramics. The crystals we provide could be in the form of bulk crystals, encapsulated crystals, pixelated scintillators, or scintillator screens, with tailored reflectors or windows. Special custom shapes such as a hole bore in the center/well-shaped, crystals with single or multiple windows are available. Our extensive catalog of scintillation crystals caters to the need for different emission spectra, light output, stopping power, etc.

Besides, Shalom EO also provides a series of products based on scintillation crystals, encompassing: large size encapsulated NaI(Tl) crystals, pixelated scintillation arrays, scintillator screens and scintillation detectors assemble with PMT.

Hangzhou Shalom EO offers superpolished optical components with ultra-low surface roughness made of substrate materials including UV fused silica, BK7, sapphire, Zerodur, ZnSe, ZnS, germanium, silicon, CaF₂, MgF₂, YAG and others, in the forms of lenses, windows, mirrors, mirrors for ring laser gyros, and superpolished substrates.

Shalom EO developed an efficient and reliable super-polishing technique through modification the classical super-polishing methods. Inspections are carried using Bruker Atom Force Microscopes and Zygo interferometer, where we implement strict control of qualities. Shalom EO is capable of obtaining super polished optics of <1 Å roughness, 0/0 scratch/dig in the central area, together with high flatness, minimized scattering loss, and absorption. our superpolish optics are suitable for applications ranging from DUV lasers, high power lasers to laser gyro systems. Custom dimensions and optional High Reflection (HR) coatings or Anti-Reflection (AR) coatings are available.

Shalom EO offers high quality Ti:sapphire crystals grown using Temperature Gradient Technique (TGT) with absorption from 1.0–4.0 cm^–1 @ 490 nm. Titanium-doped sapphire is one of the most prevalent laser crystals for tunable and ultrashort pulsed lasers with high gain and high power outputs.

Shalom EO’s TGT-grown Ti:sapphire crystal is characterized by the (0001) oriented growth, featuring large figure of merit, high gain, broad gain bandwidth, while also exhibiting excellent thermal conduction, large laser cross-section, and exceptional laser damage threshold. Dislocation densities less than 10² cm^–2 contributing to minimized light scatter can be obtained. The tunable wavelength range that covers a broad range from 700 nm to 1000 nm makes Ti:sapphire an excellent alternative for dye lasers in many applications such as ultrafast lasers.

Shalom EO offers a wide range of ultrafast optics for femtosecond lasers and ultrafast pulsed lasers, with both off-the-shelf and custom versions available. Our product portfolio includes:

• ultrafast mirrors: femtoline low GDD dielectric mirrors, ultrafast-enhanced silver mirrors, chirped mirrors, and chirped mirror pairs
• ultrafast nonlinear crystals: BBO crystals with a minimum thickness of 0.01 mm and LBO crystals
• high precision thin BK7 and UV-grade fused silica windows
• dispersion prisms made of BK7, UVFS, and SF11 and group delay compensators made from calcite.

Our ultrafast or femtoline laser optical components minimize dispersion, aberrations, and losses to maintain pulse qualities, spatial coherence, and beam-pointing stability, enabling you to achieve exceptional results in your experiments or other applications.

Shalom EO offers a series of custom ultraviolet optics, optimized for the short wave UV wavelength range of deep UV (193–248 nm) and vacuum UV (150–200 nm). We specialize in offering custom optical crystals of superior DUV, VUV, and UV transmission, and custom UV transmissive optics of various forms, including UV optical windows, lenses, prisms, optical filters, waveplates, etc. leveraging our advanced coatings like AR coatings, HR coatings, and high-quality optical substrates. Featuring high UV radiation resistance, and excellent refractive index homogeneity, our UV optics and crystals find versatile usage in applications such as 193 nm ArF laser, 248 nm KrF excimer laser, ultraviolet photolithography, astronomy, and semiconductor testing. Our product catalog includes:

• calcium fluoride (CaF₂) optics and crystals: transmission 99.8%/cm at 248 nm within the crystal, maximum diameter >300 mm, up to 500 mm, low stress of 1-10 nm/cm. Surface quality 10/5 S/D, wavefront distortion λ/10, and roughness <0.5 nm can be obtained.
• magnesium fluoride (MgF₂) optics and crystals: transmission >99% at 193 nm within the crystal, the maximum diameter of crystal ingots 120mm. Available as single crystal, Polycrystalline crystal, vacuum ultraviolet grade, and deep ultraviolet grade. Surface quality 10/5 S/D and roughness <0.5nm can be obtained.
• lithium fluoride (LiF) optics and crystals: cut-off wavelength below 110 nm, maximum diameter 100 mm, can be grown using either Bridgman–Stockbarger method or Kyropoulos method (air-grown).

Periodically poled lithium niobate (PPLN) crystal is a type of nonlinear optical crystal with distinguished high conversion efficiencies and a wide transparent spectrum of 0.4–5 μm. The 5% MgO doping in LiNbO₃ improves the damage threshold of the PPLN to a significant extent and broadens its phase-matching bandwidth. MgO: PPLN crystals exhibit a unique quasi-phase-matching (QPM) phenomenon, which allows the utilization of a higher nonlinear coefficient than in the case of birefringent phase matching.

Shalom EO offers standard and off-the-shelf MgO:PPLN crystal and waveguides for SHG of 976 nm to 2100 nm and for various upconversion and downconversion applications including DFG, SFG, OPO, and OPA. Different dimensions, MgO concentrations and AR coatings are available.

Hangzhou shalom EO offers an extensive range of off-the-shelf and custom waveplates and retarders including zero-order waveplates, true zero-order waveplates, achromatic waveplates, super achromatic waveplates, dual wavelength zero-order waveplates, low-order waveplates. These waveplates composed of quartz or MgF₂ crystal plates enable unrestrained control of polarization states with the additional advantage of high damage threshold. While we also provide polymer true zero order waveplates that are less sensitive to the angles of incidence. The structures of the waveplates can be varied for different requirements, such air spaced, cemented, or optically contacted designs. Retardation values like quarter waveplates, half waveplates, λ/8, or other custom retardance are accessible. Different coatings, standard diameter 1/2”, 1” and 2” mounts, including manual rotation mounts are available.

Fresnel rhombs that create uniform λ/4 or λ/2 retardance over a wider range of wavelengths than possible with birefringent waveplates are also procurable.

Shalom EO offers off-the-shelf wedge prisms and custom wedge prisms with high precision which are ideal for laser beam steering. Shalom EO wedge prisms are made of various materials including N-BK7, UV fused silica, Ca_F2, MgF₂, ZnSe, etc. offering 1–10° light deviation. Coating options include uncoated, V coating, a broadband anti-reflection coating (standard 350–700 nm, 650–1050 nm, and 1050–1700 nm), and other custom coatings, which could be deposited at the wedge side or the flat back side to attenuate the disturbance from the ghost image resulting from surface reflection.

Shalom EO is consistent in investing in developing cutting-edge technologies aimed at fostering a strengthful production line. We are capable of presenting high-precision wedge prisms with <λ/10 flatness, <30 arcsec angular tolerance, and +0/–0.1 mm dimension tolerance. Available size options include 25.4 mm diameter for stocked wedge prism or custom.

Hangzhou Shalom EO is an industrial-leading supplier of pixelated scintillation arrays and modules for X-ray detection. Our scintillation arrays deliver reliable results when used for non-destructive X-ray inspection, security check, food inspection, CT, etc.

Hangzhou Shalom EO offers various pixelated scintillators based on CsI(Tl), BGO, LYSO(Ce), CdWO₄, GOS, GOS(Tb), YSO(Ce), and GAGG(Ce) scintillation crystal materials. Shalom EO is capable of providing the products in miscellaneous one-dimensional or two-dimensional pixel element numbers and pixel sizes, with a minimum pixel size of 0.3 × 0.3 mm and a minimum distance between the pixels of 0.06 mm. Reflectors between pixels of different compositions can be tailored to minimize the optical crosstalk. Multi-layer scintillation arrays for high-resolution detection are also available.

In addition, Shalom EO also supplies scintillation detection arrays coupled with Si PDs and X-ray detector boards containing electronic data acquisition boards.