摘要
针对光纤通信与传感系统中光纤内信号的提取问题,将基于弯曲光纤信号的提取方法及过程进行了理论仿真分析。通过理论推导获得了弯曲光纤内信号提取的理论模型;依据该模型,对提取信号功率、光纤参数和信号光参数间的关系进行仿真分析。仿真结果表明:光信号提取(泄露)功率与通信光波长呈指数上升关系,与纤芯半径、光纤相对折射率差和弯曲半径等呈指数下降关系。
Considering the problem of signal extraction in optical fiber communication and sensing system for fiber, this paper conducts systematic theoretical simulation analysis of signal extraction method and process based on optical fiber bending. A theoretical model of signal extraction in curved fiber is obtained through theoretical derivation; Based on the model, the relationship between the extracted signal power, fiber parameters and signal light parameters is simulated and analyzed. The simulation results show that the communication wavelength have an exponentially increasing relationship with the optical signal extration. The core radius, the relative refractive index difference of the optical fiber, and the bending radius have an exponentially decreasing relationship with the optical signal extraction power.
作者
徐琳
李依丹
刘仪琳
刘倩
李丽君
XU Lin;LI Yidan;LIU Yilin;LIU Qian;LI Lijun(Shandong University of Science and Technology College of Electronic Communication and Physic,Qingdao Shandong 266590,China)
出处
《光通信技术》
北大核心
2018年第8期6-9,共4页
Optical Communication Technology
基金
中国博士后特别资助项目(200902574)资助
中国博士后面上资助项目(20080441150)资助
山东省自然基金项目(ZR2013FM019
ZR2009AM017)资助
山东省教育厅项目(J06P14)资助
山东省矿山灾害预防控制重点实验室-省部共建国家重点实验室培育基地开放基金(MDPC201602)资助
山东科技大学研究生科技创新项目资助
关键词
弯曲光纤
信号提取
弯曲损耗
泄露功率
信号提取系数
bending fiber
signal extraction
bending loss
power leakage
signal extraction coefficient
