Title :
Clock extraction using an optoelectronic oscillator from high-speed NRZ signal and NRZ-to-RZ format transformation
Author :
Huo, Li ; Dong, Yi ; Lou, Caiyun ; Gao, Yizhi
Author_Institution :
Dept. of Electron. Eng., Tsinghua Univ., Beijng, China
fDate :
7/1/2003 12:00:00 AM
Abstract :
A clock extraction scheme was demonstrated using an optoelectronic oscillator from high-speed nonreturn-to-zero (NRZ) signal. A theoretical model on the locking range of the oscillator was presented. A 10-GHz clock with a timing jitter of 0.4 ps was extracted from 10-Gb/s NRZ signal and a locking range of 800 kHz was achieved. NRZ to return-to-zero (RZ) data format conversion was also performed simultaneously with the NRZ clock extraction.
Keywords :
electro-optical modulation; feedback oscillators; optical communication equipment; p-i-n photodiodes; synchronisation; time division multiplexing; timing jitter; 10 GHz; 10 Gbit/s; Mach-Zenhder electro-optical modulator; NRZ to return-to-zero data format conversion; NRZ-to-RZ format transformation; clock extraction; feedback loop structure; high-speed NRZ signal; high-speed nonreturn-to-zero signal; locking range; optical time-division-multiplexing system; optoelectronic oscillator; p-i-n photodetector; timing jitter; Clocks; Data mining; Frequency; Optical distortion; Optical feedback; Optical filters; Optical modulation; Optical signal processing; Oscillators; Signal processing;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2003.813390
