Normal-dispersion fiber optical parametric chirped-pulse amplification.

Abstract

We demonstrate a fiber optical parametric chirped-pulse amplifier pumped in the normally dispersive regime. This approach is readily scalable, offering a route to microjoule-level, femtosecond pulses at new wavelengths. As a first demonstration, we pump with chirped pulses at 1.03μm and seed with a continuous-wave beam at 0.85μm, and are able to generate idlers at 1.3μm with durations as short as 210fs or energies as high as 180nJ.