FREGAT. Cr:Forsterite Femtosecond Amplifiers
| FREGAT-200 | FREGAT-600 | FREGAT-1000 | |
| Pulse duration (FWHM) | <120 fs | ||
| Wavelength (fixed) | 1240±10 nm | ||
| Output pulse energy* | >0.2 mJ | >0.6 mJ | >1 mJ |
| Required pump pulse energy (1064 nm, <200 ns) | 10 mJ | 35 mJ | 50 mJ |
| Pulse repetition rate** | 1 kHz | 10 / 50 / 100 Hz | 10 / 50 Hz |
| Spatial mode | TEM00 | ||
| Output polarization | linear, horizontal |
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| Utility specs | 100-240 V, 50 Hz | ||
| * - up to 30 mJ upon request; also see the FREGAT-TW system (110 mJ); ** - depends on the amplifier pump laser; an additional pulse slicer may be added to the unit. This improves the contrast ratio and allows the repetition rate to be adjusted from single-shot to the maximum repetition rate of the amplifier. |
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Globally the FREGAT family of Cr:Forsterite femtosecond amplifiers are to our knowledge the only commercially-available solutions based on this unique active medium. The systems radiate fs pulses around 1230-1240 nm. A standard FREGAT system generally includes a pulse stretcher, a regenerative amplifier, synchronization and delay generator, a pulse compressor, an integrated seed oscillator with a fiber pump laser and an amplifier pump laser. Single-box all-in-one optical head design allows robust operation and space saving.
Customized systems with peak power >1 TW are available upon request.
Related products
| Wavelength range | 400-2200 nm |
| Pulse duration range | 5 fs...20 ps |
| Repetition rate | single-shot...150 MHz |
| Sensitivity | 1 uJ in single-shot mode |
| Input wavelength range | 450-3200 nm |
| Pulse duration range | 10 fs - 30 ps |
| Minimum input frequency | from 10 Hz |
| Sensitivity | 100 mW^2 |
| Possible operating wavelength range | 200...2700 nm |
| Max. output rep. rate | up to 1 MHz |
| Rise time | down to 700 ps |
| Clear aperture | up to 20 mm |
| Contrast ratio | >1500:1 |
| Operating wavelength | 250...2000 nm |
| Transmission | >90% |
| Dynamic range | >10^2 |
| Damage threshold | up to 10 J/cm^2 |
| Clear aperture | up to 15 mm |
| Input wavelength range | 720-1600 nm |
| Output wavelength range | 360-800 nm |
| Conversion efficiency | 20-50% |
| Input pulse energy | up to 10 mJ |
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