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Power scaling of supercontinuum seeded megahertz-repetition rate optical parametric chirped pulse amplifiers

 
: Riedel, R.; Stephanides, A.; Prandolini, M.J.; Gronloh, B.; Jungbluth, B.; Mans, T.; Tavella, F.

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Optics Letters 39 (2014), Nr.6, S.1422-1424
ISSN: 0146-9592
Englisch
Zeitschriftenaufsatz
Fraunhofer ILT ()

Abstract
Optical parametric chirped-pulse amplifiers with high average power are possible with novel high-power Yb:YAG amplifiers with kW-level output powers. We demonstrate a compact wavelength-tunable sub-30-fs amplifier with 11.4 W average power with 20.7% pump-to-signal conversion efficiency. For parametric amplification, a beta-barium borate crystal is pumped by a 140 W, 1 ps Yb: YAG InnoSlab amplifier at 3.25 MHz repetition rate. The broadband seed is generated via supercontinuum generation in a YAG crystal.

: http://publica.fraunhofer.de/dokumente/N-287140.html