Frequency modulation noise and linewidth reduction in a semiconductor laser by means of a negative frequency feedback technique
Frequency modulation noise and linewidth reduction in a semiconductor laser by means of a negative frequency feedback technique
复制标题
通过负频率反馈技术减少半导体激光器中的调频噪声和线宽
DOI：
10.1063/1.95843
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发表时间：
1985
影响因子：
4
通讯作者：
Y. Yamamoto
中科院分区：
文献类型：
--
作者：
S. Saito;O. Nilsson;Y. Yamamoto
电负频率反馈控制已被证明可以降低半导体激光器中的调频噪声线宽。该方法是基于半导体激光器的直接调频能力。利用稳定的主激光器，通过光外差鉴频检测提取误差信号。调频噪声降低了20 dB以上，线宽降低了一个数量级。
Electrical negative frequency feedback control has been shown to reduce frequency modulation (FM) noise linewidth in semiconductor lasers. The method is based on the direct frequency modulation capability of a semiconductor laser. An error signal is extracted through optical heterodyne frequency discrimination detection using a stable master laser. FM noise is reduced by more than 20 dB and linewidth is reduced by one order of magnitude.