EPON突发式光信号产生及测试系统设计

Design of Burst-mode Optical Signal Generating and Testing System for EPON

介绍了研制的1.25 Gb/s突发式光信号的模拟产生系统,以及由此组成的突发光信号的测试系统。用该系统完成了对突发式光收发模块性能指标的测试,包括消光比、灵敏度、饱和光功率和动态范围等。在1.25 Gb/s速率下,发射模块的消光比达6 dB,当保护时间为100 ns时,接收模块灵敏度为-30 dBm,饱和光功率为-1 dBm,从而动态范围可达29 dB。

The developcd 1.25 Gb/s burst-mode optical signal generating system and testing system were introduced. The designed testing system tested the performance and indexes of burst-mode optical transceiver modules, which included extinction ratio, sensitivity, saturatcd optical power and dynamic range, etc. The extinction ratio of transmitter module was 6 dB, and the saturatcd optical power and sensitivity of receiver one were - 1 dBm and 30 dBm with a guard time of 100 ns at 1.25 Gb/s, then the dynamic range could be up to 29 dB.