基于3 dB光纤耦合器构成的Mach-Zehnder光纤干涉仪稳定控制系统  

Stability control system of fiber Mach-Zehnder interferometer based on 3 dB fiber coupler

作　　者：叶全意 高英杰 田锦[1] 苏守宝 王永嘉 Ye Quanyi Gao Yingjie Tian Jin Su Shoubao Wang Yongjia(School of Network and Communication Engineering, Jinling Institute of Technology, Nanjing 211169, China School of Electronics and Information Engineering, Jinling Institute of Technology, Nanjing 201169, China School of Computer Engineering, Jinling Institute of Technology, Nanjing 211169, China School of Information Science and Engineering, Southeast University, Nanjing 210009, China)

机构地区：[1]金陵科技学院网络与通信工程学院,江苏南京211169 [2]金陵科技学院电子信息工程学院,江苏南京2101169 [3]东南大学信息科学与工程学院,江苏南京210009 [4]金陵科技学院计算机工程学院,江苏南京211169

出　　处：《红外与激光工程》2017年第10期293-297,共5页Infrared and Laser Engineering

基　　金：国家自然科学基金(61375121;61302167);国家自然科学基金青年科学基金(61701204);江苏省高校自然科学研究面上项目(16KJB510010;13KJB510025);江苏省自然科学基金(BK20130095);金陵科技学院基金(jit-2016-jlxm-26;jit-2016-jlxm-22;jit-b-201408;jit-b-201511);江苏省高等学校大学生实践创新训练计划(201613573042X)

摘　　要：Mach-Zehnder光纤干涉仪(MZI)是一种利用光干涉原理制成的仪器,具有体积小、重量轻、结构紧凑、抗电磁干扰和灵敏度高等优点。但是,Mach-Zehnder光纤干涉仪是一种非平衡并行结构,易受环境等因素影响导致其性能不稳定。因此,高性能测量系统和通信系统对光纤干涉仪的稳定工作提出了严格的要求。提出了一种基于3 dB光纤耦合器构成的Mach-Zehnder干涉仪的稳定控制系统,其目的是通过对探测器的输出信号进行调制,并反馈到光纤干涉仪的一臂上进行偏置控制,从而实现Mach-Zehnder光纤干涉仪的稳定工作。该方法实现简单,克服了现有3 d B光纤耦合器构成的MachZehnder光纤干涉仪不能稳定工作的问题。Due to the advantages on small size, light-weight, compact structure, immunity electronmagetic interference and high sensitivity, fiber Mach-Zehnder interferometer has been considered in various applications. However, the abilization of the fiber Mach Zehnder interferometer has recently become the most important problem to the measurement and communication system with higher accuracy and performance, because its non balanced parallel structure. A stability control system of the fiber Mach- Zehnder interferometer was introduced,which was based on 3dB optical coupler. It was realize the stability control by bias control, the output signal of microwave photonic link feedback to one of the fiber Mach Zehnder interferometer arms. This simple method was effective to overcome the unstably problem of the fiber Mach-Zehnder interferometer which composed of 3dB fiber coupler.

关 键 词：稳定控制 Mach—Zehnder光纤干涉仪 3dB光纤耦合器 

分 类 号：TN247[电子电信—物理电子学]