基于双向瑞利散射的单模光纤多参数同时测量方法  

Multi-Parameter Measurement Method of Single Mode Fiber Based on Bidirectional Rayleigh Scattering

作　　者：刘峰[1] 史毅 葛镇昂 李浩 Liu Feng;Shi Yi;Ge Zhen’ang;Li Hao(College of Electrical and Electronic Engineering,Wenzhou University,Wenzhou 325035,Zhejiang,China)

机构地区：[1]温州大学电气与电子工程学院,浙江温州325035

出　　处：《激光与光电子学进展》2023年第7期151-155,共5页Laser & Optoelectronics Progress

基　　金：国家自然科学基金(62105246);温州市基础性科研项目(G20210010)。

摘　　要：光纤多参数同时测量是加速低损耗、低非线性等光纤研发效率的关键。为此,提出一种基于双向瑞利散射的单模光纤多参数同时测量方法,可实现光纤多参数同时精确测量。基于背向瑞利散射原理建立了多参数同时测量系统,成功测试了1 km光纤的模场直径、有效模场面积、纤芯直径、相对折射率差、截止波长、衰减系数等参数的分布特性,其测量值分别为9.24μm、66.22μm^(2)、8.28μm、0.323%、1.258μm、0.196 dB/km,并分别与传统测量方法进行了比较。实验结果表明,所提方法与传统方法测量结果基本一致,但实现了多参数分布测量且测量结果稳定。Multi-parameter synchronous measurement of optical fiber is the key to accelerate the rapid development of optical fiber towards the direction of low loss,low nonlinearity,and so on.In this paper,a multi-parameter synchronous measurement method of single-mode fiber based on bidirectional Rayleigh scattering is proposed,which can realize synchronous and accurate measurement of fiber multi-parameter.Based on the principle of Rayleigh backscattering,the optical fiber multi-parameter measurement synchronous measurement system is established,and the distribution of parameters such as mode field diameter,effective mode field area,core diameter,relative refractive index difference,cut-off wavelength,and attenuation coefficient of 1 km optical fiber are successfully tested,and the measured values are 9.24μm,66.22μm^(2),8.28μm,0.323%,1.258μm,and 0.196 dB/km,respectively,and are compared with traditional measurement methods.Experimental results show that the proposed method is basically consistent with the traditional measurement method,and the multi-parameter distribution measurement is achieved and the measurement results are stable.

关 键 词：光通信 瑞利散射 光纤参数 同时测量 

分 类 号：TN913.7[电子电信—通信与信息系统]