FBS Effect and Temperature Dependence in Trench-Assisted Multimode Fiber

沟道型折射率多模光纤的前向布里渊散射效应及其温度响应

下载PDF

导出

摘要 We propose the trench-assisted multimode fiber(TA-OM4)as a novel sensing fiber in forward Brillouin scattering(FBS)-based temperature sensor,due to its higher temperature sensitivity,better bending resistance and lower propagation loss,compared with the single mode fiber(SMF)and other sensing fibers.The FBS effect and acousto-optic interaction in TA-OM4 are the first time to be demonstrated and characterized at 1550 nm theoretically and experimentally.A 2.0 km long TA-OM4 is put into an oven to measure its temperature sensitivity,which can reach up to 80.3 kHz/℃,exceeding 53%of SMF(52.4 kHz/℃).The simulated and experimental results verify that the TA-OM4 may be a good candidate as the sensing fiber for the FBS-based temperature sensor. 提出了沟道型折射率多模光纤(TA-OM4)可作为一种新型传感光纤应用于基于前向布里渊散射(FBS)的温度传感器中。同单模光纤(SMF)和其他传感光纤相比,TA-OM4多模光纤具有高温度响应、抗弯曲和低传输损耗的优良特性。从理论和实验上对TA-OM4多模光纤在1550 nm光波长下的FBS效应进行了研究。同时温度响应测试发现,TA-OM4的温度-频移系数可高达80.3 kHz/℃,比单模光纤的温度-频移系数(52.4 kHz/℃)高53%以上。

作者 ZHANG Zelin LU Yuangang XIE Youwen HUANG Jian ZHOU Lang 张泽霖;路元刚;谢有文;黄剑;周朗(空间光电探测与感知工业和信息化部重点实验室,南京航空航天大学航天学院,中国南京211106;南京航空航天大学理学院,中国南京211106)

机构地区 Key Laboratory of Space Photoelectric Detection and Perception of Ministry of Industry and Information Technology College of Science

出处《Transactions of Nanjing University of Aeronautics and Astronautics》 EI CSCD 2020年第S01期95-101,共7页 南京航空航天大学学报（英文版）

基金 supported in part by the National Natural Foundation of China(Nos. 61875086, 61377086) the Aerospace Science Foundation of China (No.2016ZD52042) Nanjing University of Aeronautics and Astronautics Ph. D. short-term visiting scholar project (No.190901DF08)