Sub-two-cycle light pulses at 1.6 microm from an optical parametric amplifier

Opt Lett. 2008 Apr 1;33(7):741-3. doi: 10.1364/ol.33.000741.

Abstract

We generate ultrabroadband pulses, spanning the 1200-2100 nm wavelength range, from an 800 nm pumped optical parametric amplifier (OPA) working at degeneracy. We compress the microjoule-level energy pulses to nearly transform-limited 8.5 fs duration by an adaptive system employing a deformable mirror. To our knowledge, these are the shortest light pulses generated at 1.6 microm.