Title :
Combination of comb-like filter and SOA for preprocessing to reduce the pattern effect in the clock recovery
Author :
Wang, Tong ; Lou, Caiyun ; Huo, Li ; Wang, Zhaoxin ; Gao, Yizhi
Author_Institution :
Dept. of Electron. Eng., Tsinghua Univ., Beijing, China
Abstract :
A comb-like filter and a semiconductor optical amplifier (SOA) were combined to preprocess the data signals before clock recovery utilizing injection mode-locked laser based on SOA. The amplitude fluctuation and timing jitters caused by the pattern effect in clock pulses were greatly reduced experimentally with this technology. Furthermore, it also demonstrated that clock could be recovered from the very degraded signals.
Keywords :
laser mode locking; optical filters; optical information processing; optical pulse generation; optical pulse shaping; semiconductor optical amplifiers; synchronisation; timing jitter; 3R regeneration; SOA; amplitude fluctuation; clock pulses; clock recovery; comb-like filter; injection mode-locked laser; pattern effect; preprocessing; semiconductor optical amplifier; timing jitters; Clocks; Degradation; Fluctuations; Laser mode locking; Optical filters; Optical pulses; Pulse amplifiers; Semiconductor lasers; Semiconductor optical amplifiers; Timing jitter;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2003.823101
