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Vol. 27 (1999) No. 7 P 495-500



Stimulated Brillouin scattering (SBS) reflectivity and gain coefficient of bulk optical glasses, a laser glass and a fused-silica glass are measured at wavelength of 1.06μm. The reason why optical glass has ahigh damage threshold at long Q-switched pulse operation is explained in terms of the SBS backward reflectance. A flint glass of SF-6 has high SBS gain compared with the gaseous or liquid materials. Fused-silica glasses are most promissing as a phase conjugated SBS mirror for all solid-state high-energy lasers because of high damage threshold and their low absorbance.

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