温度修正的单模光纤宏弯损耗特性理论分析  

Theoretical Analysis of Temperature-corrected Single-mode Fiber Macro-bending Loss Characteristics

作　　者：孙云鹏 舒畅[1] 林海涛[1] SUN Yun-peng;SHU Chang;LIN Hai-tao(School of Electronic Engineering,Naval University of Engineering,Wuhan 430000,China)

机构地区：[1]海军工程大学电子工程学院,武汉430000

出　　处：《光通信研究》2021年第5期50-56,共7页Study on Optical Communications

摘　　要：为了研究单模光纤宏弯损耗特性与温度变化的关系,文章根据Faustini L提出的理论公式进行了热光效应和热膨胀效应修正,基于该公式对温度影响下的纤芯—包层—无限涂覆层结构SMF28和1060XP单模光纤宏弯损耗分别进行了仿真分析,探究了温度、波长和弯曲半径等因素对单模光纤宏弯损耗特性的影响,并得到两种单模光纤与温度之间的线性拟合结果。研究结果表明,宏弯损耗随弯曲半径的减小而增大,随波长的增大而增大,随温度的升高而减小;当弯曲半径和波长一定时,宏弯损耗与温度之间具有单调性;增大弯曲圈数可有效增加其对温度的灵敏度。In order to study the relationship between the macro-bending loss characteristics of the single-mode fiber and the temperature change,the thermo-optical effect and thermal expansion effect are corrected according to the theoretical formula proposed by Faustini L.Based on this formula,the macro-bending loss of SMF28 and 1060XP single-mode fiber with core-cladding-infinite coating structure under the influence of temperature is simulated and analyzed.The influence of temperature,wavelength,bending radius and other factors on the macro-bending loss of SMF28 single-mode fiber is explored,and the linear fitting results between the temperature and the two kinds of single-mode fibers are obtained.The results show that the macro-bending loss increases with the decrease of bending radius,and the increase of wavelength.The loss also decreases with the increase of temperature.Under certain bending radius and wavelength,the macro-bending loss and temperature are in monotonic relationship,which means increasing the number of bending turns can effectively increase the sensitivity to temperature.

关 键 词：单模光纤 宏弯损耗 纤芯-包层-无限涂覆层 温度传感器 

分 类 号：TN818[电子电信—信息与通信工程] TP212[自动化与计算机技术—检测技术与自动化装置]