Modulator bias control based on dither signal in 40Gb/s RZ optical transmission system

摘要：

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.

关键词： LN modulator bias control optical transmission system dither signal

作者: Zhang Jianyong Wang Muguang Fu yongjun Cao Jihong Qin Xi Zhang feng Jian shuisheng

作者单位: Key lab of All optical Network & Advanced Telecommunication Network of EMC,Beijing Jiaotong Universi Institute of Lightwave Technology,Beijing Jiaotong University,Beijing 100044,China

会议类型: 国际会议

会议名称: 2008亚太光通信会议(Asia-Pacific Optical Communications 2008)

会议地点: 杭州

会议语种:英文

在线出版日期: 2008-10-26（万方平台首次上网日期，不代表论文的发表时间）