Abstract
We experimentally demonstrate virtually lossless, filamentation-free and energy-scalable more than three-fold self-compression of mid-infrared laser pulses at 2.1 μm in a birefringent medium (-BBO crystal), which stems from favorable interplay between the second-order cascading-enhanced self-phase modulation and anomalous group velocity dispersion. By choosing an appropriate input beam diameter and intensity, the self-compression down to sub-30 fs pulse widths with gigawatt peak power is achieved without the onset of beam filamentation and associated nonlinear losses due to the multiphoton absorption, yielding the energy throughput greater than 86%.
© 2018 Optical Society of America
Full Article | PDF ArticleMore Like This
Houkun Liang, Peter Krogen, Ross Grynko, Ondrej Novak, Chun-Lin Chang, Gregory J. Stein, Darshana Weerawarne, Bonggu Shim, Franz X. Kärtner, and Kyung-Han Hong
Opt. Lett. 40(6) 1069-1072 (2015)
Rosvaldas Šuminas, Gintaras Tamošauskas, Vytautas Jukna, Arnaud Couairon, and Audrius Dubietis
Opt. Express 25(6) 6746-6756 (2017)
R. Šuminas, G. Tamošauskas, G. Valiulis, and A. Dubietis
Opt. Lett. 41(9) 2097-2100 (2016)