Industrial femtosecond lasers FemtoLux – EKSPLA
- ️Thu Mar 20 2025
Industrial Femtosecond Lasers
FemtoLux is designed from the get-go for maximum reliability, seamless integration and non-stop 24/7/365 zero maintenance operation with innovative ”dry” cooling. Wide range of options enable to tailor this ultrafast laser for desired material processing tasks.
Features
- At 1030 nm
50 W typical max output power
> 300 µJ typical max output energy - At 515 nm
20 W typical max output power
> 50 µJ typical max output energy - At 343 nm
10 W typical max output power
> 25 µJ typical max output energy - High energy version available (1 mJ at 10 kHz)
- > 750 µJ in a burst mode
- < 350 fs – 1 ps
- Pulse duration extension up to 1 ns
- Single shot to 4 MHz (AOM controlled)
- MHz, GHz, MHz+GHz burst modes
- Pulse-on-demand (PoD), with jitter as low as 20 ns (peak-to-peak)
- < 0.5% RMS power long term stability over 100 hours
- M² < 1.2
- Beam circularity > 0.85
- Zero maintenance
- Dry cooling (no water used)
- PSU and cooling unit integrated into single 4U rack housing
- Easy and quick installation
- Compatible with galvo and Polygon scanners as well as PSO controllers
A reliable & versatile tool for micromachining
Designed from the get-go for maximum reliability, seamless integration and non-stop 24/7/365 zero maintenance operation with innovative ”dry” cooling.
The FemtoLux femtosecond laser has a tunable pulse duration from <350 fs to 1 ps and can operate in a broad AOM controlled range of pulse repetition rates from a single shot to 4 MHz.
The maximum pulse energy is more than 300 μJ operating with single pulses and can reach more than 750 µJ in burst mode, ensuring higher ablation rates and processing throughput for different materials.
The FemtoLux beam parameters will meet the requirements of the most demanding materials and micro-machining applications.
Innovative laser control electronics ensure simple control of the FemtoLux laser by external controllers that could run on different platforms, be it Windows, Linux or others using REST API commands.
This makes easy integration and reduces the time and human resources required to integrate this laser into any laser micromachining equipment.
Material processing examples made with FemtoLux laser.
Courtesy of FTMC and Femtika.
Seamless user experience
- Easy integration – remote control using REST API via RS232 and LAN.
- Reduced integration time – demo electronics is available for laser control programming in advance.
- Easy and quick installation – no water, fully disconnectable laser head. Can be installed by the end-user.
- Easy troubleshooting – integrated detectors and constant system status logging.
- No periodic maintenance required.
Innovative “Dry” Cooling System
Direct refrigerant cooling system compressor.
Picture courtesy of Aspen Systems Inc.
The FemtoLux laser employs an innovative cooling system and sets new reliability standards among industrial femtosecond lasers. No additional bulky and heavy water chiller is needed.
The chiller requires periodic maintenance – cooling system draining and rinsing and water and particle filter replacement. Moreover, water leakage can cause damage to the laser head and other equipment. Instead of using water for transferring heat from a laser head, the FemtoLux laser uses an innovative Direct Refrigerant Cooling method.
The refrigerant agent circulates from a PSU-integrated compressor and condenser, to a cooling plate via armored flexible lines.
The entire cooling circuit is permanently hermetically sealed and requires no maintenance.
Direct refrigerant cooling system features
- Military-grade reliability
- Permanently hermetically sealed system >90,000 hour MTBF
- No maintenance
- High cooling efficiency
- >45% lower power consumption compared to water cooling equipment
- Compact and light
Simple & reliable cooling plate attachment
The cooling plate is detachable from the laser head for more convenient laser installation. The laser cooling equipment is integrated with the laser power supply unit into a single 4U rack-mounted housing with a total weight of 15 kg.
Specifications
| Model | FemtoLux 30 | FemtoLux 50 |
|---|---|---|
| Main Specifications 1) | ||
| Central wavelength | ||
| Fundamental | 1030 nm | 1030 nm |
| With second harmonic option | 515 nm | 515 nm |
| With third harmonic option | 343 nm | 343 nm |
| Pulse Repetition Rate (PRR) 2) | 200 kHz – 4 MHz | 100 kHz – 2 MHz |
| Pulse repetition frequency (PRF) after frequency divider | PRF = PRR / N, N=1, 2, 3, … , 65000; single shot | PRF = PRR / N, N=1, 2, 3, … , 65000; single shot |
| Average output power | ||
| At 1030 nm 3) | > 27 W (typical 30 W) | > 45 W (typical 50 W) |
| At 515 nm | > 11 W 4) | > 20 W 5) |
| At 343 nm | > 6 W 4) | > 10 W 5) |
| Pulse energy | ||
| At 1030 nm | > 100 µJ or 1 mJ 6) | > 300 µJ 7) |
| At 515 nm | > 55 µJ 4) | > 50 µJ 5) |
| At 343 nm | > 30 µJ 4) | > 25 µJ 5) |
| Number of pulses in MHz burst 8) | 2 – 10 | 2 – 10 |
| Total energy in burst mode 9) | > 450 µJ | > 750 µJ |
| Power long term stability (Std. dev.) 10) | < 0.5 % | < 0.5 % |
| Pulse energy stability (Std. dev.) 11) | < 1 % | < 1 % |
| Pulse duration (FWHM) @ 1 MHz | Tunable, < 350 fs 12) – 1 ps 13) | Tunable, < 400 fs 12) – 1 ps 13) |
| Optional pulse duration extension | tunable, up to 1 ns | tunable, up to 1 ns |
| Beam quality | M2 < 1.2 (typical < 1.1) | M2 < 1.2 (typical < 1.1) |
| Beam circularity, far field | > 0.85 | > 0.85 |
| Beam divergence (full angle) | < 1 mrad | < 1 mrad |
| Beam pointing thermal stability | < 20 µrad/°C | < 20 µrad/°C |
| Beam diameter (1/e2) at 1030 nm | 2.5 ± 0.4 mm @ 65 cm | 2.5 ± 0.4 mm @ 65 cm |
| Polarization | vertical | vertical |
| Triggering mode | internal / external | internal / external |
| Pulse output control | frequency divider, pulse picker, burst mode, packet triggering, power attenuation, pulse-on-demand 14) | frequency divider, pulse picker, burst mode, packet triggering, power attenuation, pulse-on-demand 14) |
| Control interfaces | RS232 / LAN | RS232 / LAN |
| Length of the umbilical cord | 3 m, detachable | 3 m, detachable |
| Laser head cooling type | dry (direct refrigerant cooling through detachable cooling plate) | dry (direct refrigerant cooling through detachable cooling plate) |
| Physical characteristics | ||
| Laser head (W × L × H) | 434 × 569 × 150 mm | 434 × 569 × 150 mm |
| Power supply unit (W × L × H) | 449 × 496 × 177 mm | 449 × 496 × 177 mm |
| Operating Requirements | ||
| Mains requirements | 100 – 240 V AC, single phase, 50/60 Hz | 100 – 240 V AC, single phase, 50/60 Hz |
| Maximal power rating | 800 W | 800 W |
| Operating ambient temperature | 18 – 27 °C | 18 – 27 °C |
| Relative humidity | 10 – 80 % (non-condensing) | 10 – 80 % (non-condensing) |
| Air contamination level | ISO 9 (room air) or better | ISO 9 (room air) or better |
- Due to continuous improvement, all specifications are subject to change without notice. Parameters marked typical are not specifications. They are indications of typical performance and will vary with each unit we manufacture. All parameters are specified for a shortest pulse duration. Unless stated otherwise, all specifications are measured at 1030 nm and for basic system without options.
- When frequency divider is set to transmit every pulse. Fully controllable by integrated AOM.
- At 1 MHz.
- At 200 kHz.
- At 400 kHz.
- Other combinations of energy and repetition rate available.
- At 100 kHz.
- Oscillator frequency ~50 MHz, ~20 ns separation between pulses.
- MHz burst mode or MHz+GHz burst mode at 50 kHz PRR.
- Over 100 h after warm-up under constant environmental conditions.
- Under constant environmental conditions.
- At PRR > 500 kHz. At PRR < 500 kHz shortest pulse duration is < 400 fs.
- Custom pulse duration by request. For example – fixed 50 fs available.
- Optional feature. Jitter < 20 ns. Trigger-to-pulse delay < 1 µs.
FemtoLux 50 performance
FemtoLux 30 performance
FemtoLux 30 stability
Drawings
Laser control application
Ekspla Control Application is a software tool intended for day-to-day routine operation control. It is used to control the laser in API level through LAN or RS-232 communication types, the control capabilities are stored in the laser system itself, software is self-adaptive to the system, one application can be used with multiple systems and can run on different platforms – be it Windows, Linux or others using REST API commands.
Applications
Publications
Ultrashort Pulse Bursts for Surface Laser Polishing
S. Steponavičiūtė, P. Gečys, G. Račiukaitis, M. Gedvilas, and A. Žemaitis, in Optics, Photonics and Lasers OPAL’ 2024 Conference Proceedings, S. Y. Yurish, ed. (IFSA Publishing, 2024), pp. 44.
Versatile ultrashort pulse laser tunable up to nanosecond range
T. Bartulevičius, M. Lipnickas, K. Madeikis, R. Burokas, and A. Michailovas, in Solid State Lasers XXXII: Technology and Devices, W. A. Clarkson, and R. K. Shori, eds. (SPIE, 2023), pp. 1239904. DOI: 10.1117/12.2649867.