A new method for accurate measurement of the threshold value of stimulated Brillouin scattering (SBS) in water in terms of pump laser intensity is investigated. The threshold value of SBS is determined by the point of the deviation of the value of the attenuation coefficients of wide- and narrow-linewidth lasers rather than the intensity of the backscattered SBS signal in the material.
© 2008 Optical Society of America
Original Manuscript: April 11, 2008
Revised Manuscript: May 29, 2008
Manuscript Accepted: June 3, 2008
Published: June 30, 2008
Jianhui Bai, Jinwei Shi, Min Ouyang, Xudong Chen, Wenping Gong, Hongmei Jing, Juan Liu, and Dahe Liu, "Method for measuring the threshold value of stimulated Brillouin scattering in water," Opt. Lett. 33, 1539-1541 (2008)