高灵敏度光收发组件自动温度控制技术研究

Research on Automatic Temperature Control Technology for High Sensitivity Optical Transceiver Module

为了实现数字信号长距离和高可靠的传输,设计了一种高灵敏度、高集成的数字光收发组件。介绍光收发组件的工作原理,设计基于分布式反馈激光器(Distributed Feedback Laser,DFB)和雪崩光电二极管(Avalanche Photo Diode,APD)探测器的高灵敏度光收发组件,详细分析其中自动功率控制功能、消光比自动控制以及自动APD升压控制的设计。实验结果表明,温控精度可达±0.1℃,组件工作稳定,可以满足数字信号高灵敏度和长距离的传输需求。

In order to realize the long-distance and highly reliable transmission of digital signals,a highly sensitive and integrated digital optical transceiver module is designed.This paper introduces the working principle of optical transceiver module,designs a high-sensitivity optical transceiver module based on Distributed Feedback Laser(DFB)and Avalanche Photo Diode(APD)detector,and analyzes in detail the design of automatic power control function,automatic extinction ratio control and automatic APD boost control.The experimental results show that the temperature control accuracy can reach 0.1ħ,and the module works stably,which can meet the requirements of high sensitivity and long-distance transmission of digital signals.