超长光纤传输链路能耗损失的数学模型设计  

Mathematical model design of energy loss of ultra-long optical fiber transmission links

作　　者：兰星 徐涛 LAN Xing;XU Tao(Guangzhou Institute of Science and Technology,Guangzhou 510540;School cf mechanical and electrical engineering,Wuyi University,Wuyishan 354300)

机构地区：[1]广州理工学院,广州510540 [2]武夷学院机电工程学院,福建武夷山354300

出　　处：《激光杂志》2022年第8期112-116,共5页Laser Journal

基　　金：福建省中青年教师教育科研项目(No.JAT20067)。

摘　　要：为了降低超长光纤传输链路能耗损失、保障传输稳定性,设计超长光纤传输链路能耗损失数学模型,实现对超长光纤传输链路能耗损失的运算。分析并运算热辐射、热对流与热传导,在导体电流通过光纤时生成热量传播后,观察光纤的温度变化状况,在此基础上,运算出不同温度变化下光纤的内部应力差。根据计算出的应力差数值为依据,设计超长光纤传输链路能耗损失数学模型,达到运算超长光纤传输链路能耗损失的目的。结果表明,光纤的温度随导体电流的升高而上升,且光纤温度越高超长光纤传输链路能耗损失越高;光纤应力与导体电流成正比,且应力越高光纤的形变量越大,能耗损失越高;光纤埋设土壤温度与深度均同能耗损失成正比,当土壤温度高于24℃时,超长光纤传输链路能耗损失上升幅度较高。In order to reduce the energy consumption loss of the ultra-long optical fiber transmission link and guarantee the transmission stability,a mathematical model of the energy consumption loss of ultra-long optical fiber transmission link is designed to realize the calculation of the energy consumption loss of ultra-long optical fiber transmission link.This model analyzes and calculates heat radiation,heat convection and heat conduction.After heat propagation is generated when conductor current passes through the fiber,observe the temperature change of the fiber.Based on this,calculate the internal stress difference of the fiber under different temperature changes.According to the calculated stress difference value,the mathematical model of the energy consumption loss of ultra-long optical fiber transmission link is designed to achieve the purpose of calculating the energy consumption loss of ultra-long optical fiber transmission link.The results show that the temperature of the fiber increases with the increase of conductor current,and the higher the temperature of the fiber,the higher the energy loss of the link.The fiber stress is proportional to the conductor current,and the higher the stress is,the greater the shape variable of the fiber is,and the higher the energy loss is.When the soil temperature is higher than 24℃,the energy loss of the fiber transmission link increases greatly.

关 键 词：超长光纤 传输链路 能耗损失 数学模型 导体电流 应力差 

分 类 号：TN81[电子电信—信息与通信工程]