光学学报, 2009, 29 (1): 151, 网络出版: 2009-02-10
利用光窄带滤波器加快帧时钟消失速度的理论和实验研究
Investigation on Packet Clock Recovery with Fastened Unlocking Time Using an Optical Band-Pass Filter
光纤通信技术 分组交换 帧时钟提取 法布里-珀罗滤波器 optical fiber communication optical packet switching all-optical clock recovery Fabry-Pérot filter
摘要
帧内时钟提取是高速率的光分组交换中关键技术之一。帧时钟建立和消失的快慢决定了线路中的最小分组间隔, 从而影响了线路的分组速率。提出了一种利用半导体放大器(SOA)的自相位调制效应(SPM)导致的红移, 利用光学滤波器减小分组时钟消失时间的方法, 并最终完成了10 Gb/s的分组时钟的提取, 建立和消失时间分别为2个和6个码元周期。
Abstract
All-optical packet clock recovery is a key technique for high-speed optical packet switching(OPS) networks. The locking and unlocking time of the packet clock determines the guard time in the OPS, and therefore affects the network bandwidth utilization. An all-optical packet clock recovery system with ultrafast locking and unlocking time via the self-phase modulation effect of the saturated semiconductor optical amplifier(SOA) and an optical band-pass filter was proposed. The 10 GHz packet clock recovery with locking time of two code-periods and unlocking time of six-code periods is obtained.
张爱旭, 于晋龙, 王文睿, 张立台, 韩丙辰. 利用光窄带滤波器加快帧时钟消失速度的理论和实验研究[J]. 光学学报, 2009, 29(1): 151. Zhang Aixu, Yu Jinlong, Wang Wenrui, Zhang Litai, Han Bingchen. Investigation on Packet Clock Recovery with Fastened Unlocking Time Using an Optical Band-Pass Filter[J]. Acta Optica Sinica, 2009, 29(1): 151.
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