11 November 2008 Modulator bias control based on dither signal in 40Gb/s RZ optical transmission system
Author Affiliations +
Proceedings Volume 7136, Optical Transmission, Switching, and Subsystems VI; 71363H (2008) https://doi.org/10.1117/12.803063
Event: Asia-Pacific Optical Communications, 2008, Hangzhou, China
Abstract
The bias drift effect in the packaged LiNbO3 modulator is investigated. The Bessel expansion of the dithered clock shows that the harmonic component equal to the dither frequency can be synchronously demodulated to get the bias drift and avoid the random phase difference between the clock or data and the dither signal. By using the time division control method one control system can track two modulator bias drift in 40Gb/s RZ optical transmission system because the optimum bias point changes very slowly.
© (2008) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Jianyong Zhang, Jianyong Zhang, Muguang Wang, Muguang Wang, Yongjun Fu, Yongjun Fu, Jihong Cao, Jihong Cao, Xi Qin, Xi Qin, Feng Zhang, Feng Zhang, Shuisheng Jian, Shuisheng Jian, } "Modulator bias control based on dither signal in 40Gb/s RZ optical transmission system", Proc. SPIE 7136, Optical Transmission, Switching, and Subsystems VI, 71363H (11 November 2008); doi: 10.1117/12.803063; https://doi.org/10.1117/12.803063
PROCEEDINGS
5 PAGES


SHARE
Back to Top