光纤光栅水听器阵列串扰抑制技术  

Crosstalk Suppression Technology in Optical Fiber Grating Hydrophone Arrays

作　　者：周少玲[1] 

机构地区：[1]中国电子科技集团公司第二十三研究所,上海200437

出　　处：《光纤与电缆及其应用技术》2016年第3期26-31,共6页Optical Fiber & Electric Cable and Their Applications

摘　　要：在Fabry—Perot型光纤光栅水听器复用阵列中,光脉冲的多次反射引入严重的通道间串扰。分析了不同的时分、波分复用光路结构中光纤光栅反射率对水听器通道间串扰的影响。提出了一种采用较高反射率光纤光栅有效抑制光纤光栅水听器阵列通道间串扰的光路结构。试验结果表明,在采用这种光路结构的2波分4时分的复用阵列中,通过使用反射率约为10%的光纤光栅,通道间串扰最大为-50.5dB。The multiple reflections of optical pulses induce serious channel-to-channel crosstalk in multiplexed Fabry—Perot fiber grating hydrophone arrays.The impacts of optical fiber Bragg grating reflectivity on channel-tochannel crosstalk in different time-and wavelength-division multiplexing optical schemes are analyzed.An effective crosstalk suppression structure with high-reflectivity fiber Bragg grating is presented.The experimental result shows that in 2wavelength-and 4time-division multiplexing array,the maximum channel-to-channel crosstalk is-50.5dB by using the fiber Bragg grating with around 10% reflectivity.

关 键 词：光纤光栅 光纤水听器 通道间串扰 时分复用 波分复用 

分 类 号：TB565.1[交通运输工程—水声工程]