Add-on: few-cycle & CEP-stability
Nonlinear compression is an elegant way to shorten the pulse duration of pulses beyond the capabilities of the employed laser gain medium. It is characterized by highest beam quality and stability, power scalability and high efficiency.
In addition, the technique perfectly fits to AFS fiber-based ultrafast laser systems in terms of mode-matching. The nonlinear-compression add-on can be applied to a large span of pulse energies ranging from µJ to several mJ, supports average powers in the kW-range and enables high quality few-cycle pulses when starting from pulses in the range of 300 fs.
A stable carrier-envelope phase is a key requirement for many applications. In particular when working with few-cycle pulse durations it is often a necessity not only for atto-second science. AFS offers system designs enabling ultra-low CEP-noise for all our CPAs up to kW average power levels. Furthermore, we can provide the required oscillators, detection and feedback system to keep the CEP noise at a minimum, enabling your applications.
SPECIFICATIONS
The following specs show only our main platforms. We happily customize a system exactly to your needs.
Few-cycle configuration
< 40 fs configuration
Pulse energy (output)
up to 5 mJ
up to 8 mJ
Average power (output)
up to 500 W
up to 800 W
Pulse duration
down to 6 fs
down to 38 fs
Central wavelength
1030nm or 1950nm (with reduced performance)
Polarization
linear
Beam quality
close to diffraction-limited, M2 < 1.3
RIN slow
between 0.5% RMS …. 1.5%RMS [1/(24h)…1Hz], depending on driving laser
RIN fast
between 0.5% RMS …. 1.5%RMS [1Hz…frep/2], depending on driving laser
Beam pointing
< 10 µrad RMS
CEP-noise (with CEP-Addon)
<250mrad [1mHz…frep/2]
typically not required
Long-term power measurement of 1.05mJ and 5.8fs pulses at 105W average power.
Parametric asymetry plot 5.8fs MPC compressed pulse 105W 1.05mJ measured using signle-shot Stereo-ATI
D-scan measurement of 5.8fs pulse at 105W, 1.05mJ a1030nm
Typical power spectral density and integrated CEP-noise of AFS coherent combining system
Typical power spectral density and integrated CEP-noise of AFS single amplifier channel systems
描述 [描述] few-cycle & CEP-stability