Abedin Kazi S
Opt Express. 2005 Dec 12;13(25):10266-71. doi: 10.1364/opex.13.010266.
Strong stimulated Brillouin scattering in single-mode As2Se3 chalcogenide fiber is observed using a cw laser at 1.55 microm wavelength region. Brillouin threshold for a 5-m-long fiber is as small as 85 mW. The Brillouin frequency shift vB and the gain linewidth DeltavB are 7.95 GHz and 13.2 MHz, respectively, measured with heterodyne detection and an RF spectrum analyzer. A Brillouin gain coefficient gB of 6.0 x 10(-9) m/W, about 134 times larger than that of fused silica fiber, is obtained for As2Se3 single mode fiber from measurements of Brillouin threshold power and the gain linewidth.
在1.55微米波长区域使用连续波激光器观察到单模硫属化物光纤As2Se3中的强受激布里渊散射。5米长光纤的布里渊阈值低至85毫瓦。采用外差检测和射频频谱分析仪测量得到的布里渊频移vB和增益线宽ΔvB分别为7.95吉赫兹和13.2兆赫兹。通过测量布里渊阈值功率和增益线宽，得到As2Se3单模光纤的布里渊增益系数gB为6.0×10^(-9) 米/瓦，约为熔石英光纤的134倍。
