Vector phase conjugation for beam combining in a pulsed Nd:YAG laser system

Hubert Becht

doi:10.1117/12.308358

19 May 1998 Vector phase conjugation for beam combining in a pulsed Nd:YAG laser system

Hubert Becht

Author Affiliations +

Proceedings Volume 3263, Nonlinear Optical Engineering; (1998) https://doi.org/10.1117/12.308358
Event: Optoelectronics and High-Power Lasers and Applications, 1998, San Jose, CA, United States

Abstract

Phase- and polarization conjugation has been realized by phase locking and phase conjugating two linearly polarized components of a depolarized beam by means of stimulated Brillouin scattering in nitrogen at 75 bar. Hereby, depolarization losses of an oscillator-amplifier laser system have been reduced from 36% without polarization conjugation to 7.1% with vector phase conjugation. An application in a novel oscillator double- amplifier laser system is presented where the amplifiers are operated in a parallel arrangement. An average of 81 percent of the total optical energy generated in the system has been transferred into the output beam with a beam quality of M² < 1.1 and excellent pointing stability.

Citation Download Citation

Hubert Becht "Vector phase conjugation for beam combining in a pulsed Nd:YAG laser system", Proc. SPIE 3263, Nonlinear Optical Engineering, (19 May 1998); https://doi.org/10.1117/12.308358

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