多速率接收及时钟数据恢复光纤激光传输实验研究

白冰; 郭玉彬; 赵晓晖

半导体光电, 2012, 33 (2): 249, 网络出版: 2012-05-22

多速率接收及时钟数据恢复光纤激光传输实验研究

Experimental Study on Fiber Laser Transmission Based on Multispeed Receiving and Clock Data Recovery

论文大纲

白冰 ^*郭玉彬赵晓晖

作者单位

吉林大学通信工程学院, 长春 130012

光纤激光电光调制眼图光接收灵敏度 fiber laser electrooptic modulator eyediagram optical receiver sensitivity

摘要

基于84km光传输链路, 对L波段光纤激光器进行了多速率接收及时钟数据恢复实验。采用伪随机序列非归零(NRZ)码、高性能LiNbO3电光晶体调制器, 调制速率从622Mb/s到2.7Gb/s。实验所用光纤激光器输出中心波长1610.28nm, 线宽0.1nm, 边模抑制比大于45dB, 输出功率稳定性优于0.02dB。对多速率接收眼图进行了测试, 其各速率信号眼图张开度好、眼皮厚度小, 结果表明测试系统无码间干扰和信号畸变, 信号的信噪比较高。在误码率为10-12时, 接收灵敏度可达到-30.62dBm, 过载光功率为-4.1dBm。分析了影响系统传输质量的因素, 研究了高速率下信号与时钟恢复后不同步的问题。

Abstract

With the development of highspeed and masscapacity fiber optical communication technology, the multispeed modulating signal is adopted for different demands. Based on 84km optical transmission links, experiments were carried out on the multispeed receiving and clock data recovery of Lband fiber laser. Employing NRZ format and LiNbO3 electrooptic modulator, the modulation rate was set from 622Mb/s to 2.7Gb/s. For the Lband fiber lasers used in experiments, the center wavelength is 1610.28nm, the linewidth is 0.1nm, SMAR is more than 45dB, and output power stability is better than 0.02dB. The multirate receiving eyediagram was tested, and the results show that the stretching of the eyediagrams is ideal and the eyelid is thin. The coding jam and signal aberrance are not detected, and signalnoise ratio is fine. The sensitivity of receiver is about -30.62dBm when BER is 10-12, and the overload power is -4.1dBm. The factors influencing the transmission quality were analyzed and the problem of nonsynchronization between signal and clock recovery in high speed modulation was studied.

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白冰, 郭玉彬, 赵晓晖. 多速率接收及时钟数据恢复光纤激光传输实验研究[J]. 半导体光电, 2012, 33(2): 249. BAI Bing, GUO Yubin, ZHAO Xiaohui. Experimental Study on Fiber Laser Transmission Based on Multispeed Receiving and Clock Data Recovery[J]. Semiconductor Optoelectronics, 2012, 33(2): 249.

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