aeroPULSE FS20 high power femtosecond lasers

aeroPULSE FS is a portfolio of industrial-grade femtosecond fiber lasers based on NKT Photonics world renowned Crystal Fiber platform.

OneFive Aeropulse FS20 This family of rugged and compact OEM femtosecond lasers uses state-of-the-art mode-locking technology to deliver ultra-short femtosecond pulses with outstanding long-term stability, superior pulse-to-pulse stability, low noise, and excellent TEMoo mode quality.

Developed for cutting edge applications

The aeroPULSE FS20 is designed for a diverse range of applications including optogenetics, ophthalmology, OPA pumping, LIDAR and material processing.

As standard, the aeroPULSE FS is available with output powers up to 20 W emitting at 1030 nm. Other wavelengths, including green, are available upon request.

Get the dual wavelength second harmonic module

The attachable second-harmonic generation (SHG) module makes it possible to switch between 10 μJ at 515 nm and 20 μJ at 1030 nm. The wavelength is selected via software.

Maintenance-free and OEM-ready

The aeroPULSE FS lasers were developed for demanding 24/7 OEM applications, highlighting unit-to-unit consistency and uptime, low cost of ownership, and ease of integration.

Designed for the stringent requirements of materials processing and micromachining applications where its superior reliability are mandatory product attributes. Every feature of the aeroPULSE is designed for continuous and consistent operation in demanding applications.

The system configuration consists of a 19” rack-mountable control unit and a very low profile laser head that can be mounted either horizontally or vertically. The complete system is water-cooled supporting high output power performance.

The system can be remotely controlled via an RS-232 interface and incorporates extensive onboard data logging of key parameters.

Our proprietary manufacturing technology ensures product quality while our tightly controlled supply chain makes for consistency.


  • Average powers of >20 W @1030 nm and 10 W @515 nm
  • Pulse energies of >20 μJ @1030 nm and >10 μJ @515 nm
  • Available pulse width <0.5 – 3 ps
  • Up to 50 MHz repetition rate
  • Excellent beam pointing stability
  • All-fiber design, industrial reliability
  • System monitoring via remote diagnostics
  • Very quick warm-up time
  • Plug and Play
  • Maintenance-free 24/7 operation

Contact us now

As standard, the aeroPULSE FS femtosecond laser comes with a center wavelength of 1030 nm. With the attachable Second-Harmonic Generation module, you can switch between 1030 nm and 515 nm.

The fiber platform of the aeroPULSE is very flexible, which means that we can supply other configurations, should you need it. Let us know what you need.

Model Power Pulse Length Rep. rate, available*
FS20 20 W @ 1030 nm <0.5 - 3 ps 0.2 - 50 MHz
FS20 dual wavelength 20 W @ 1030 nm

10 W @ 515 nm

<0.5 - 3 ps 0.2 - 50 MHz

* Other values available on request


Model aeroPULSE FS20 With dual wavelength module
Center wavelength 1030 nm 515 nm
Power 20 W 10 W
Pulse duration <0.5 - 3 ps < 0.5 ps
Pulse energy 20 µJ at 200-1000 kHz 10 µJ at 200-1000 kHz
Repetition rate 0.2 - 33 MHz 0.2 - 33 MHz
Beam diameter 1.0 mm 1.0 mm
Beam divergence < 1.6 mrad < 1.0 mrad
Spatial mode, fundamental M2 ≤1.2 M2 ≤1.3
Beam asymmetry/ellipticity 15 % 20 %
Power stability (8 hours), RMS 0.5 % 0.5 %
Pointing stability (8 hours) <50 µrad <50 µrad
Polarization - linear, PER >25 dB >25 dB


Model aeroPULSE FS20 With dual wavelength module
Computer Interface USB 2.0, RS 232 USB 2.0, RS 232
Operation Voltage 100-240 VAC, 33-60 Hz 100-240 VAC, 33-60 Hz
Power Consumption <330 W <330 W
System Cooling Water-based Water-based
Chiller Rack-mount or floor stand Rack-mount or floor stand
Operation Temperature 18-30°C 18-30°C
Storage Temperature -10°C to +60°C -10°C to +60°C
Dimensions (WxHxL)
Laser head
Control unit
Chiller (floor stand)
Chiller (rack mount)
335.5 x 100 x 545.1 mm3
482 x 174.5 x 418 mm3 (4U 19" rack)
330 x 197 x 279 mm3
432 x 177 x 438 mm3
337.75 x 84 x 678.1 mm3
482 x 174.5 x 418 mm3 (4U 19" rack)
330 x 197 x 279 mm3
432 x 177 x 438 mm3
Weight laser head 13.9 kg 17.8 kg
Weight control unit < 14.7 kg < 14.7 kg
Weight chiller 9 kg 9 kg
OneFive aeroPULSE FS20 laser head mechanical drawing OneFive aeroPULSE FS20 laser head mechanical drawing
OneFive aeroPULSE FS20 mechanical drawing with SHG module

aeroPULSE support/warranty

The product is covered by a comprehensive warranty. Service options are available. For details, please enquire. All aeroPULSE lasers are completely maintenance-free and have an expected lifetime of more than 20,000 hours. Please contact your sales representative for more information.


The aeroPULSE systems are driven by our proven pulsed platform used in the SuperK EXTREME supercontinuum lasers. Consequently, the systems are completely maintenance free and have an expected lifetime of more than 20,000 hours.


All NKT Photonics products are produced under our quality management system certified in accordance with the ISO 9001:2015 standard. United Registrar of Systems Laser_warning_class_4