摘要
输电线塔光纤在偏振态色散状态下需要进行光偏振态测量和控制,但光偏振控制器出现复位重置问题时无法有效控制光偏振态,为了解决这一问题,研究基于光偏振态技术的GBO优化控制方法;采用四通道斯托克斯测量技术测量光纤偏振态,对光波偏振度、偏振角和椭圆率等偏振状态进行了全面测量;优化设计延迟量可变光偏振态控制器,调整光偏振方向或延迟,解决外部压力变化下的复位重置问题;融合偏振控制器与偏振分束器,应用GBO算法和反馈控制闭环,实现光纤偏振态优化控制;测试结果表明,该方法使用的GBO算法在迭代次数达到400次即优化成功;实际应用该方法进行光偏振态优化控制后,BER迅速降至1%左右后维持平稳,有效减小了输电线塔光纤偏振态的波动。
The optical polarization state measurement and control of transmission tower optical fibers are required in the state of polarization dispersion,but an optical polarization controller is prone to ineffective control of optical polarization states during reset.To solve this problem,a GBO optimization control method based on optical polarization state technology is present.Four channel Stokes measurement technology is used to measure the polarization states of optical fibers,comprehensively measure the polarization degree,polarization angle,ellipticity,and other polarization states of light waves,optimize the design of a variable delay optical polarization state controller,adjust the direction or delay of optical polarization,and solve the reset under external pressure changes;Integrating a polarization controller and a polarization beam splitter,applying the GBO algorithm and feedback control loop to achieve fiber polarization state optimization control.The test results show that the GBO algorithm is optimized successfully with the number of iterations reaching up to 400;After applying this method to optimize the control of optical polarization states,the BER rapidly decrease to about 1%and then remains stable,effectively reducing the fluctuations of large polarization states in transmission line towers.
作者
魏勇
刘文昭
张家驹
余立锴
李朝峰
WEI Yong;LIU Wenzhao;ZHANG Jiaju;YU Likai;LI Zhaofeng(Information&Telecommunication Branch,State Grid Hebei Electric Power Company Co.,Ltd.,Shijiazhuang 050000,China;New Energy Technology Co.,Ltd.,Wuhan 430074,China)
出处
《计算机测量与控制》
2025年第12期105-110,160,共7页
Computer Measurement & Control
基金
国网河北省电力公司科技项目(kj2024-015)。
关键词
光纤偏振态测量
偏振控制器
偏振分束器
GBO算法
输电线塔
光纤通信稳定优化控制
fiber polarization state measurement
polarization controller
polarization beam splitter
GBO algorithm
transmission line tower
stable optimization control of fiber optic communication
