22 February 2013 Pulse compression and beam quality improvement of a single-frequency Nd:YAG MOPA system
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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.
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Oliver Lux, Oliver Lux, Hristomir Stankov, Hristomir Stankov, Haro Fritsche, Haro Fritsche, Hans J. Eichler, 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); doi: 10.1117/12.2002348; https://doi.org/10.1117/12.2002348
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