Generation of 150-fs pulses from a diode-pumped Yb:KYW nonlinear regenerative amplifier.
Generation of sub-150-fs-level pulses has been obtained from an Yb-doped crystal-based regenerative amplifier by applying an innovative amplification scheme. This scheme is based on optimization of the linear and non-linear phase during the amplification process inside the regenerative amplifier cavity. This technique with Yb:KYW allows to achieve pulse durations from diode-pumped Yb-doped regenerative amplifiers that were up to now only accessible with more complex Ti:sapphire amplifiers. With this Yb-doped tungstate crystal used in regenerative amplifiers, 145 fs pulses centered at 1026 nm with a spectral bandwidth of 14 nm at 50 kHz for an average power of 1.6 W have been generated.
Julien
J
Pouysegur
Martin
M
Delaigue
Clemens
C
Hönninger
Patrick
P
Georges
Frédéric
F
Druon
Eric
E
Mottay