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全双工直接调制激光器光网络单元的优化研究.pdf

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文档介绍:第 51 卷 第 7 期 激 光 与 红 外 Vol.51 ,No.7
r are analyzed systematically by optimizing and testing the algorithm model of semicon-
ductor optical amplifier.The results show that the optimal conditions for amplitude modulation or phase modulation is
the bias current of 1 00 mA and input power of -5 dBm or -20 dBm,respectively.The 20 km bidirectional transmis-
sion communication system with a communication rate of 2.5 Gb /s is analyzed and built,the bidirectional and unidi-
rectional transmission of upstream and downstream for optical network unit integrated with semiconductor optical am-
plifier and distributed feedback laser is tested.When forward bit error rate is 2.4 ×1 0 -4 ,the sensitivities reach
-22.4 dBm and -31 .4 dBm for bidirectional upstream and downstream,and the sensitivities reach -23.4 dBm and
-23.8 dBm for unidirectional upstream and downstream,respectively.
Keywords:optical communication;semiconductor optical amplifier;gain;noise figure;distributed feedback laser

1 引 言 下一代无源光网络 2(NGPON2)的发展[1 -2]。受农
通信系统对数据容量需求的爆炸式增长加速了 村地 区,远 距 离 办 公 等 里 程 限 制

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全双工直接调制激光器光网络单元的优化研究.pdf

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