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中文摘要：
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40GHz和60GHz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-I，D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10GHz的光调相信号均得到40GHz或60GHz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。
英文摘要：
A 40 GHz or 60 GHz millimeter wave phase-modulated signal is generated from a low-frequency phasemodulated 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.
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