Optoelectronic microwave oscillator
Optoelectronic microwave oscillator
复制标题
DOI：
10.1364/josab.13.001725
复制
发表时间：
1996-08-01
影响因子：
1.9
通讯作者：
Maleki, L
中科院分区：
文献类型：
--
作者：
Yao, XS;Maleki, L
我们描述了一种新颖的振荡器，它将连续的光能转换成稳定的和光谱纯的微波信号。这种光电微波振荡器由。泵浦激光器和包括强度调制器、光纤延迟线、光电探测器、放大器和滤波器的反馈电路。我们发展了一个准线性理论，得到了阈值条件、振幅、频率、线宽和谱功率密度的表达式。我们还提出了实验数据与理论结果进行比较。我们的研究结果表明，光电微波振荡器可以产生超稳定的，频谱纯微波参考信号高达75 GHz的相位噪声低于-140 dBc/Hz在10 kHz。(C)1996年美国光学学会。
We describe a novel oscillator that converts continuous light energy into stable and spectrally pure microwave signals. This optoelectronic microwave oscillator consists of. pump laser and a feedback circuit including an intensity modulator, an optical fiber delay line, a photodetector, an amplifier, and a filter. We develop a quasi linear theory and obtain expressions for the threshold condition, the amplitude, the frequency, the line width, and the spectral power density of the oscillation. We also present experimental data to compare with the theoretical results. Our findings indicate that the optoelectronic microwave oscillator can generate ultrastable, spectrally pure microwave reference signals up to 75 GHz with a phase noise lower than - 140 dBc/Hz at 10 kHz. (C) 1996 Optical Society of America.