摘要
GPON ONU用光接收模块的光接收灵敏度和饱和光功率分别要求-28dBm和-8dBm。测试表明,具有2.5Gb/s APD-TIA光接收模块在25℃和85℃下接收光灵敏度和饱和光功率一般没问题,但在-40℃下,部分模块饱和光功率低于-8dBm。分析指出,饱和光功率偏低,主要与APD的结构、温度特性以及TIA、AGC性能有关。
The general requirements of optical receiver sensitivity and maximum input optical power for optical receiver module with 2.5Gb/s APD-TIA used in G-PON are-28dBm and-8dBm.Tests show that the optical receiver sensitivity and max.input optical power are generally not a problem at 25℃ and 85℃,but max.input optical power of some modules is less than-8dBm at-40℃.The analysis points out that low maximum input optical power involves mainly with the inner structure and temperature characteristics of APD,and the performances of TIA and AGC.
出处
《光通信技术》
CSCD
北大核心
2012年第10期1-3,共3页
Optical Communication Technology
