Noise and error rate performance of semiconductor laser amplifiers in PCM-IM optical transmission systems
Noise and error rate performance of semiconductor laser amplifiers in PCM-IM optical transmission systems
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DOI：
10.1109/jqe.1980.1070356
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发表时间：
1980-10
影响因子：
2.5
通讯作者：
Y. Yamamoto
中科院分区：
文献类型：
--
作者：
Y. Yamamoto
从理论上研究了半导体激光放大器在强度调制数字光传输系统中的应用。讨论了电子再生终端中继器之间的光线性放大中继器和电子再生中继器中光电探测器前面的光线性前置放大器。同时考虑了行波型和法布里-珀罗腔型激光放大器。使用半导体激光放大器的公式评估了这些系统中的噪声和误码率性能。由光子主方程[1]计算的光放大输出光子的均值和方差被用来获得这些系统的均衡输出电压[2]的最坏情况的方差。给出了采用前置放大系统的直接检测方案所需的接收功率的降低，以及光线性放大直放站系统在两个电子再生端之间的中继器间距的扩展。
Applications of semiconductor laser amplifiers in intensity modulated digital optical transmission systems were studied theoretically. An optical linear amplifier repeater between electronically regenerating terminal repeaters and an optical linear preamplifier in front of a photodetector in an electronically regenerating repeater are discussed. Both traveling-wave type and Fabry-Perot cavity type laser amplifiers are considered. The noise and error rate performance in these systems are evaluated using formulations for semiconductor laser amplifiers. The mean and variance in the optical amplifier output photons calculated by the photon master equation [1] is used to obtain the worst case variance in the equalized output voltage [2] for these systems. The required receiving power reduction from direct detection scheme by a preamplifier system and the repeater spacing expansion between two electronically regenerating terminals by an optical linear amplifier repeater system are delineated.