摘要
提出从接收到的光信号脉冲串中提取光基频时钟的方案。此方案的要点是 :首先在光脉冲的复用过程中人为地使复用后相邻码的时间间隔不相等 ,即复用为非均匀码。其次 ,在接收端利用光纤环形锁模激光器提取与复用前原信号同频率的时钟脉冲。实验的初步结果及理论分析表明所提出的时钟提取方案是可行的。
A novel all-optical scheme for extracting clock pulses with basic frequency from the receiving nonuniform optical signal with optical time division multiplexing was proposed. In the signal, the space between two pulses is made unequally by artificial means. At the receiver side the base-frequency pulses can be obtained when such signal injects into a mode-locked fiber laser. The feasibility of this scheme is proved by experiment.
出处
《中国激光》
EI
CAS
CSCD
北大核心
2001年第1期67-70,共4页
Chinese Journal of Lasers
基金
国家自然科学基金!(6 980 70 0 2 )资助项目
关键词
光通信
光时分复用
光信号脉冲
基频时钟脉冲
非均匀分布
Clocks
Fiber lasers
Optical fibers
Phase shift keying
Signal processing
Time division multiplexing
