Suppression of spontaneous modulation instability and phase noise with a coherent seed in the interferometric fiber sensing systems
Suppression of spontaneous modulation instability and phase noise with a coherent seed in the interferometric fiber sensing systems
复制标题
在干涉光纤传感系统中使用相干种子抑制自发调制不稳定性和相位噪声
DOI：
10.1364/ol.43.003642
复制
发表时间：
2018-08-01
期刊：
影响因子：
3.6
通讯作者：
Meng, Zhou
中科院分区：
文献类型：
--
作者：
Hu, Xiaoyang;Chen, Wei;Meng, Zhou
提出了一种利用相干种子抑制干涉型光纤传感系统中的自发调制不稳定性和相位噪声的方法。通过产生相位调制的相干种子，在光纤中激发诱导MI。相干种子相对于被放大的自发发射噪声的优先增益抑制了自发微信号，导致光纤中诱导微信号占主导地位。输出光的相干性得到增强，相位噪声得到明显抑制。可显著提高最大输入功率，延长传感范围。(C) 2018年美国光学学会
A method is proposed to suppress spontaneous modulation instability (MI) and phase noise with a coherent seed in the interferometric fiber sensing systems. By generating coherent seeds with phase modulation, induced MI is excited in an optical fiber. The preferential gain of the coherent seeds compared to the amplified spontaneous emission noise suppresses spontaneous MI. As a result, the induced MI dominates in the optical fiber. The coherence of the output light is enhanced, and the phase noise is suppressed significantly. The maximum input power can be increased significantly, and the sensing range can be extended. (C) 2018 Optical Society of America