DFC SEED
Low-noise OPCPA seeder
• Intrinsic CEP stability by DFG method (CERO)
• 8 mrad RMS phase stability in 20 s
• Best commercially available CEP-stability
• Long-term CEP drifts can be compensated
• Dual synchronized output at 1560 nm and 1030 nm or 1950 nm
The DFC SEED unit is dedicated for OPCPA and high power amplifier seeding that require phase-stable ultrashort laser pulses at 1560 nm and 1030 nm or 1950 nm. It combines an outstanding passive CEP stability which challenges the best Ti:sapph lasers with the convenience and robustness of a fiber laser. Long-term drifts of the CEP that are caused by a subsequent amplifier chain can be compensated through a dedicated feedback channel. The repetition rate frep of the DFC SEED can be synchronized to any appropriate reference.
Options
• Modular DFC Extensions: Various extension modules are available that convert the offset-free fundamental output at 1560 nm of the DFC SEED to any desired wavelength between 420 nm and 2200 nm
• DFC BC and DFC MD units for beam combining and monochromatic beat detection
Applications
• Low-noise OPCPA seeding
Specifications
2 CEP-stable synchronized outputs
1560 nm and 1030 nm or 1950 nm
Repetition rate
80 MHz
Output power
>2, >2, >0.6 mW (per 10 nm each)
Bandwidth
> 25, > 40, > 150 nm
CEP stability
< 35 mrad (typ. < 8 mrad) in 20 s @ [50 mHz, 5 Hz]
Pulse duration
Pre-chirped, compressible to < 100 fs
Power stability
0.2 % in 24h (peak-to-peak)
Integrated RIN (10 Hz - 100 kHz)
0.04 % RMS
fCEO
0 Hz
Output coupling
Polarization-maintaining fiber (FC/APC)
Dimensions (H x W x D)
157 x 448 x 635 mm
Weight
< 30 kg
Power supply
100...120 V / 220...240 VAC, 50...60 Hz (auto detect)