Title :
Comb-like filter preprocessing to reduce the pattern effect in the clock recovery based on SOA
Author :
Wang, Tong ; Li, Zhihong ; Lou, Caiyun ; Wu, Yue ; Gao, Yizhi
Author_Institution :
Dept. of Electron. Eng., Tsinghua Univ., Beijing, China
fDate :
6/1/2002 12:00:00 AM
Abstract :
A novel approach is proposed to reduce the amplitude fluctuation and timing jitter of clock pulses recovered from an injection mode-locked laser based on the semiconductor optical amplifier (SOA) caused by the pattern effect. A comb-like filter is used to preprocess the data pulses that are then injected into the injection mode-locked laser to recovery the clock. Numerical calculation for 40-Gb/s clock recovery demonstrates that this method is very effective for high-speed clock recovery based on the SOA.
Keywords :
Fabry-Perot interferometers; comb filters; interference filters; laser mode locking; semiconductor optical amplifiers; synchronisation; timing jitter; 40 Gbit/s; Fabry-Perot etalon; SOA; amplitude fluctuation; clock pulses; clock recovery; comb-like filter preprocessing; data pulses; high-speed clock recovery; high-speed optical fiber networks; injection mode-locked laser; numerical calculation; pattern effect; semiconductor optical amplifier; timing jitter; Clocks; Fluctuations; Laser mode locking; Nonlinear optics; Optical filters; Optical pulses; Optical refraction; Optical variables control; Pulse amplifiers; Semiconductor optical amplifiers;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2002.1003116
