Supercontinuum generation from 2 to 20  μm in GaAs pumped by picosecond CO₂ laser pulses

Abstract

We report on the generation of supercontinuum radiation from 2 to 20 μm in a 67 mm long GaAs crystal pumped by a train of 3 ps ${\mathrm{CO}}_2$ laser pulses. Temporal measurements indicate that sub-picosecond pulse splitting is involved in the production of such wide-bandwidth radiation in GaAs. The results show that the observed spectral broadening is heavily influenced by four-wave mixing and stimulated Raman scattering.

© 2014 Optical Society of America

High-power, mid-infrared, picosecond pulses generated by compression of a CO₂ laser beat-wave in GaAs

J. J. Pigeon, S. Ya. Tochitsky, and C. Joshi
Opt. Lett. 40(24) 5730-5733 (2015)

Supercontinuum generation from a multiple-ring-holes tellurite microstructured optical fiber pumped by a 2 μm mode-locked picosecond fiber laser

Dinghuan Deng, Weiqing Gao, Meisong Liao, Zhongchao Duan, Tonglei Cheng, Takenobu Suzuki, and Yasutake Ohishi
Appl. Opt. 52(16) 3818-3823 (2013)

Compact KGd(WO₄)₂ picosecond pulse-train synchronously pumped broadband Raman laser

Xiao Qiang Gao, Ming Liang Long, and Chen Meng
Appl. Opt. 55(24) 6554-6558 (2016)

Spectral coherence in all-normal dispersion supercontinuum in presence of Raman scattering and direct seeding from sub-picosecond pump

Mariusz Klimczak, Grzegorz Soboń, Krzysztof Abramski, and Ryszard Buczyński
Opt. Express 22(26) 31635-31645 (2014)

White-light supercontinuum generation with 60-ps pump pulses in a photonic crystal fiber

Stéphane Coen, Alvin Hing Lun Chau, Rainer Leonhardt, John D. Harvey, Jonathan C. Knight, William J. Wadsworth, and Philip St. J. Russell
Opt. Lett. 26(17) 1356-1358 (2001)