基于FP-LD实现副载波信号产生  

Research on subcarrier frequency signal generation based on FP-LD

作　　者：韩丙辰[1,2] 于晋龙[1] 王文睿[1] 吴波[1] 郭精忠[1] 王菊[1] 杨恩泽[1] 

机构地区：[1]天津大学电子信息工程学院,天津300072 [2]大同大学物理与电子科学学院,山西大同037009

出　　处：《光电子．激光》2012年第2期266-272,共7页Journal of Optoelectronics·Laser

基　　金：国家自然基金重点项目(60736035);山西省青年科技基金(2011021018)资助项目

摘　　要：采用一种基于法布里-珀罗腔激光二极管(FP-LD)的副载波信号的产生方案,此方案主要包括一个FP-LD和一个电光相位调制器(PM)。首先利用可调谐激光器、电光PM及微波源产生光正弦相位调制信号,将该信号注入到FP-LD中,通过FP-LD的注入锁定将该信号转换为副载波信号。在实验中,分别以2、3、4和5 GHz的调制频率注入到FP-LD中,相应得到22、21、24和25 GHz的副载波信号。In this paper,a convertion scheme of subcarrier frequency modulation signal is proposed based on Fabry-Perot cavity laser diode （FP-LD）, including an FP-LD and an electro-optic phase modulator （PM）. First of all, the sinusoidal phase modulation optical signal is obtained by the tunable lasers, electro-optic phase modulator and microwave source, then the phase modulated optical signal is injected into the FP-LD,and the low frequency phase modulated signal is convered into the subcarrier frequency modulation signal based on injection-locldng in the FP-LD. In the experiment, the optical signals with 2 GHz, 3 GHz,4 GHz and 5 GHz modulation frequencies are injected into the FP-LD, appropriate to be 22 GHz,21 GHz,24 GHz and 25 GHz subcarrier FM signal,respectively.

关 键 词：光通信 无线通信 副载波 法布里-珀罗腔激光二极管(FP-LD) 

分 类 号：TN929.11[电子电信—通信与信息系统]