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.
出处
《光电子．激光》
EI
CAS
CSCD
北大核心
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
