Pulse compression and beam quality improvement of a single-frequency Nd:YAG MOPA system

Oliver Lux; Hristomir Stankov; Haro Fritsche; Hans J. Eichler

doi:10.1117/12.2002348

22 February 2013 Pulse compression and beam quality improvement of a single-frequency Nd:YAG MOPA system

Oliver Lux, Hristomir Stankov, Haro Fritsche, Hans J. Eichler

Proceedings Volume 8600, Laser Resonators, Microresonators, and Beam Control XV; 860005 (2013) https://doi.org/10.1117/12.2002348
Event: SPIE LASE, 2013, San Francisco, California, United States

Abstract

Stimulated Brillouin scattering phase conjugation (SBS-PC) in the fluorocarbon liquid FC-77 is investigated within the development of a single-frequency Nd:YAG master oscillator power amplifier system operating at 1064 nm wavelength. Focusing of the pulsed Nd:YAG laser radiation into a FC-77-filled SBS cell which acts as a phase conjugate mirror in a double-pass amplifier arrangement generates high peak power output radiation in the MW range. As a result of the SBS phase conjugation process, we observed an improvement of the spatial beam quality (M² = 1.4) as well as pulse shortening to the sub-nanosecond regime (<800 ps). The latter is significantly governed by the pump energy and the focusing conditions.

Citation Download Citation

Oliver Lux, Hristomir Stankov, Haro Fritsche, and Hans J. Eichler "Pulse compression and beam quality improvement of a single-frequency Nd:YAG MOPA system", Proc. SPIE 8600, Laser Resonators, Microresonators, and Beam Control XV, 860005 (22 February 2013); https://doi.org/10.1117/12.2002348

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