光电工程, 2011, 38 (11): 6, 网络出版: 2011-11-18  

高非线性光子晶体光纤布里渊散射谱及温敏特性

Temperature Dependence of Brillouin Scattering Spectrum for High Nonlinear Photonic Crystal Fiber
作者单位
北京石油化工学院光机电装备技术北京市重点实验室,北京 102617
摘要
利用光子晶体光纤中相向传播的两束激光之间的受激布里渊散射光放大作用原理,通过实验研究了光子晶体光纤中布里渊散射谱和布里渊频移随温度的变化特性,当入射激光在波长为 1 548 nm、温度为 25℃时,光子晶体光纤的受激布里渊散光相对于入射光移频量为 9.795 GHz,布里渊谱线宽度为 19 MHz,频移温度系数为 1.33 ℃/MHz。对高非线性光子晶体光纤和普通单模光纤的布里渊散射谱分别进行了测量和讨论,结果表明:光子晶体光纤比普通单模光纤具有更窄的布里渊散射线宽和更强的温敏效应,可望成为分布式光纤布里渊传感器的新型光纤传感元件。
Abstract
The theory that optical amplification of stimulated Brillouin scattering can be generated through interaction of two counter propagating laser beams in photonic crystal fiber is used. Varieties of Brillouin scattering spectrum and Brillouin frequency shift along with temperature are studied via experiments. The experiment results show that the photonic crystal fiber has a frequency shift of 9.795 GHz, a Brillouin spectrum width of 19 MHz and a frequency shift temperature coefficient of 1.33℃/MHz when the incident beam has a wavelength of 1 548 nm at temperature 25℃. Brillouin scattering spectrums of a high nonlinear photonic crystal fiber and a standard single-mode fiber are measured and discussed, and results are presented that the photonic crystal fiber has a narrower Brillouin scattering bandwidth and a stronger temperature dependence corresponding to the standard single-mode fiber, and the photonic crystal fiber can turn into a novel fiber sensing component for a distributed fiber Brillouin sensor.

黄民双, 黄军芬. 高非线性光子晶体光纤布里渊散射谱及温敏特性[J]. 光电工程, 2011, 38(11): 6. HUANG Min-shuang, HUANG Jun-fen. Temperature Dependence of Brillouin Scattering Spectrum for High Nonlinear Photonic Crystal Fiber[J]. Opto-Electronic Engineering, 2011, 38(11): 6.

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