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设计并实现了一种将密集波分复用(DWDM)薄膜滤波片与光电探测器PIN以及前置放大器TIA集成封装的光接收组件。通过创新设计单模光纤双芯插针和自聚焦透镜的结构,解决了透过密集波分复用滤波片后的反射光偏离轴线带来的耦合问题。并基于该组件实现了32个密集波分复用通道的解复用与信号检测同时完成的波分复用无源光网络(WDM-PON)系统中上行信道阵列接收模块。测试表明模块满足国际电信联盟(ITU-T)中心波长,最小插入损耗为0.3 dB,最大插入损耗为6 dB,响应速率为100 Mbit/s~1.25 Gbit/s。
A light-receiving module is designed and implemented to integrate Dense Wavelength Division Multiplexing (DWDM) thin-film filters with photodetector PIN and pre-amplifier TIA. Through the innovative design of the single-mode fiber double-core pin and the structure of the self-focusing lens, the coupling problem caused by the deviation of the reflected light after passing through the dense wavelength division multiplexing filter is solved. Based on this component, an uplink channel array receiving module in a wavelength division multiplexing passive optical network (WDM-PON) system, which is used for demultiplexing and detecting 32 dense wavelength division multiplexing channels simultaneously, is realized. Tests show that the module meets the ITU-T central wavelength with a minimum insertion loss of 0.3 dB, a maximum insertion loss of 6 dB, and a response rate of 100 Mbit / s to 1.25 Gbit / s.