中国激光, 2004, 31 (3): 265, 网络出版: 2006-06-12
高消光比超短脉冲产生的实验研究
Experimental Study on Generation of Ultra-Short Optical Pulse with High Extinction Ratio
光纤通信技术 超短光脉冲 光时分复用 电吸收调制晶体 增益开关分布反馈激光器 色散补偿光纤 fiber communication technique ultrashort optical pulse optical time division multiplexing (OTDM) EA modulator (EAM) gain-switched distributed feedback (DFB) semicond dispersion compensation fiber (DCF)
摘要
实验研究了一种基于增益开关分布反馈(DFB)激光器加色散补偿光纤(DCF)和电吸收调制(EAM)晶体的超短光脉冲的产生技术.产生的光脉冲半极大全宽为10.4 ps,抖动小,消光比高,无基座.
Abstract
In this paper, a technology on generation of ultrashort pulse with high extinction ratio is studied. The pulse from gain-switched DFB laser is linearly compressed in dispersion compensation fiber (DCF), then modulated synchronously by an electro-absorption modulator (EAM) by using the nonlinear absorption characteristic of EAM. With this method, ultrashort of 10.4 ps pulse with repetition rate of 10 GHz, low timing jitter, high extinction ratio and no pedestal is generated experimentally. The technology can be used in 40 Gbit/s optical time division multiplexing (OTDM) system. Also the result shows the ability of pulse shaping of EAM.
王安斌, 伍剑, 拱伟, 林金桐. 高消光比超短脉冲产生的实验研究[J]. 中国激光, 2004, 31(3): 265. 王安斌, 伍剑, 拱伟, 林金桐. Experimental Study on Generation of Ultra-Short Optical Pulse with High Extinction Ratio[J]. Chinese Journal of Lasers, 2004, 31(3): 265.
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