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FSX Series

Ultra low-noise wavelength tunable femtosecond lasers


The FSX-series is a versatile, turn-key and compact femtosecond laser perfectly matched for multiphoton imaging and other biophotonic applications.

The air-cooled laser is engineered for sustained 24/7 operation. Temperature fluctuations between 18 °C and 28 °C have no influence on the performance, mitigating concerns about misalignment over time and operating environment.

  • Turn-key, Easy to use & rugged
  • Compact & air-cooled
  • Dual-output
  • Wavelength tuneable
  • High power
  • Synchronized pulses
  • Low RIN & phase noise
  • Energy efficient


Single-wavelength: 1030nm
Second wavelength: 765 - 940 nm (fixed in range)
Second wavelength: 760 - 940 nm (tunable)
Pulse duration
<140 fs
Average output power per wavelength
>5 W
>1 W @ 1030 nm
>500 mW @ 2nd λ
>1 W @ 1030 nm>500 mW over range
Pulse energy
>50 nJ
>12.5 nJ @ 1st λ
>5 nJ @ 2nd λ
>12.5 nJ @ 1st λ
>5 nJ @ 2nd λ
Pulse repetition rate
100 MHz
On request 40-250MHz
Beam quality
M2 <1.15, TEM00
>23 dB
Pointing stability
30 µrad rms (12 h) const. temperature, <5 µrad / °C 18 - 27°C
Laser output
Collimated free space


Size laser head
560 x 350 x 125 mm3
Weight laser head
10 kg
Size laser controller
495 x 295 x 165 mm3
Weight laser controller
10 kg

Options / Warranty

Built in AOM for power control and galvo flyback blanking.
Dispersion pre-compensation 0 ... -40´000 fs2
Warranty up to 5 years in total
Water cooling

For SRS Imaging

Built-in AOM on stokes wavelength 1030nm
>20 MHz modulation bandwidth
0-100% modulation


Laser system
Air cooled


Power supply
90 – 264 VAC, 47 – 63 Hz
Power consumption
<500 W


Storage temperature
-10 °C - 65 °C
Warm-up time
<10 min
Operation temperature
18 °C - 27 °C

Download full specification


Broad range of applications

  • 2P polymerization
  • Supercontinuum generation
  • Terahertz generation
  • Quantum optics
  • Amplifier seeding
  • 2P/SHG/THG microscopy

  • FLIM microscopy

  • Coherent Raman Imaging (CARS/SRS)

  • Neuroscience & Optogenetics

  • Spectoscopy


Perfectly matched for 2P/SHG/THG-imaging

Our lasers are designed to fit any multi-photon imaging system. We will customize them for your specific needs.


Due to the air-cooled design, our lasers have a short warm-up time and can be put into operation anywhere - completely independent of the equipment and lab environment on site.

Compact form-factor

The compact design makes it easy to use the laser for almost any workspace. The small unit controller can be easily concealed away from the rest of the experiment. The laser head is free and flexible to conveniently fit almost anywhere in the setup.


The lasers are designed to be setup at any indoor location and are plug-and-play.

Works out of the box

Our laser is shipped fully assembled and according to your specifications. No need to install, tune or setup with a technician.

Sustained 24/7 performance

Temperature fluctuations between 18 °C and 28 °C have no influence on the performance, mitigating concerns about misalignment over time and operating environment.

Energy efficient

No excessive heat and quiet operation help save energy and reduce costs over time.

Easy to transport

Due to the compact and robust design our lasers can be transported easily from one laboratory to another which makes sharing very easy.

Single and dual wavelength

Both single and dual wavelength outputs are available for our laser devices. there is also the additional option of a second fixed or tuneable wavelength which allows every user to choose the best possible option for their specific application scope.

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