基于低速光调相信号注入DFB-LD产生4~16倍频的40 GHz和60 GHz毫米波信号

吴波; 于晋龙; 刘毅; 王文睿; 郭精忠; 罗俊; 王菊; 杨恩泽

doi:doi:10.3788/cjl201138.1105002

中国激光, 2011, 38 (11): 1105002, 网络出版: 2011-10-27

基于低速光调相信号注入DFB-LD产生4~16倍频的40 GHz和60 GHz毫米波信号

Generation of 40 GHz and 60 GHz Millimeter Wave Signals by Injecting Low-Frequency Phase-Modulated Optical Signal into a DFB-LD with the Frequency-Multiplication Factor Ranging from 4 to 16

论文大纲

吴波 ^*于晋龙刘毅王文睿郭精忠罗俊王菊杨恩泽

作者单位

天津大学电子信息工程学院，天津 300072

光通信光载无线光子上变频注入锁定 optical communications radio-over-fiber photonic up-conversion injection locking

摘要

提出一种基于低速光调相信号注入半导体分布反馈激光器（DFB-LD）产生最低4倍频，最高16倍频的40 GHz和60 GHz的毫米波调相信号。该方案利用注入光的N阶调相边带锁定DFB-LD的波长，同时DFB-LD放大此调相边带并与原注入光信号通过相干差拍作用在LD腔内形成毫米波调相信号。通过理论建模分析了工作原理，经系统实验验证了此方案的可行性。应用2.5，5和10 GHz的光调相信号均得到40 GHz或60 GHz的毫米波信号，实现了最低4倍频，最高16倍频的毫米波信号产生，并通过单边带相位噪声的测量验证了毫米波的频率稳定度。

Abstract

A 40 GHz or 60 GHz millimeter wave phase-modulated signal is generated from a low-frequency phase-modulated optical signal injected into a distributed feedback laser diode (DFB-LD) and the frequency-multiplication factor varies from 4 to 16. The N-th modulation sideband of injection light results in wavelength locking of DFB-LD, simultaneously, the N-th modulation sideband is also amplified in the DFB-LD. Therefore, these two coherent optical fields interact in LD cavity to form stable millimeter wave phase-modulated signal. Via theoretical analyses and experimental demonstrations, the 40 GHz and 60 GHz millimeter wave phase-modulated signals are obtained by injecting 2.5, 5 and 10 GHz sine phases-modulated signal into the DFB-LD. The frequency-multiplication factor varies from 4 to 16 and the stability of the generated millimeter wave is established and proved by single sideband phase noise measurement.

参考文献

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吴波, 于晋龙, 刘毅, 王文睿, 郭精忠, 罗俊, 王菊, 杨恩泽. 基于低速光调相信号注入DFB-LD产生4~16倍频的40 GHz和60 GHz毫米波信号[J]. 中国激光, 2011, 38(11): 1105002. Wu Bo, Yu Jinlong, Liu Yi, Wang Wenrui, Guo Jingzhong, Luo Jun, Wang Ju, Yang Enze. Generation of 40 GHz and 60 GHz Millimeter Wave Signals by Injecting Low-Frequency Phase-Modulated Optical Signal into a DFB-LD with the Frequency-Multiplication Factor Ranging from 4 to 16[J]. Chinese Journal of Lasers, 2011, 38(11): 1105002.

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