Abstract

We have investigated the use of stimulated Brillouin scattering (SBS) in a ring resonator to reduce the threshold of SBS phase conjugation for radiation from a frequency-narrowed Cr, Tm, Ho:YAG laser operating at 2.12 μm. Compared with an alternative scheme for threshold reduction, the loop scheme, we find that the ring resonator has a lower SBS threshold and a similar fidelity, but exhibits large fluctuations in output. We attribute these to fluctuations in the cavity length that detune the mode frequency from the center of the Brillouin gain bandwidth. Mode beating is occasionally observed with the beat frequency’s being strongly influenced by the effect of a Brillouin-induced phase shift.

© 1995 Optical Society of America

Stimulated Brillouin scattering and loop threshold reduction with a 2.1-μm Cr,Tm,Ho:YAG laser

A. M. Scott, W. T. Whitney, and M. T. Duignan
J. Opt. Soc. Am. B 11(10) 2079-2088 (1994)

Phase-locked phase conjugation by Brillouin-induced four-wave mixing

K. D. Ridley
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Single-longitudinal-mode, phase-conjugate ring master oscillator power amplifier using external stimulated-Brillouin-scattering Q switching

R. A. Lamb
J. Opt. Soc. Am. B 13(8) 1758-1765 (1996)

Phase-locked phase conjugation using a Brillouin loop scheme to eliminate phase fluctuations

K. D. Ridley and A. M. Scott
J. Opt. Soc. Am. B 13(5) 900-907 (1996)

Real-time atmospheric compensation by stimulated Brillouin-scattering phase conjugation

Hans Bruesselbach, D. Cris Jones, David A. Rockwell, R. C. Lind, and George Vogel
J. Opt. Soc. Am. B 12(8) 1434-1447 (1995)