Photonic Sensors, 2016, 6 (3): 209, 网络出版: 2016-10-20  

Study of Rayleigh-Backscattering Induced Coherence Collapse in an Asymmetric DFB FL Sensor

Study of Rayleigh-Backscattering Induced Coherence Collapse in an Asymmetric DFB FL Sensor
作者单位
1 College of Optoelectronic Science and Engineering, National University of Defense Technology, Changsha, 410073, China
2 Academy of Ocean Science and Engineering, National University of Defense Technology, Changsha, 410073, China
摘要
Abstract
Rayleigh-back scattering induced coherence collapse of an asymmetric distributed feedback fiber laser (DFB FL) sensor is investigated using a composite cavity model. The coherence collapse threshold condition of the asymmetric DFB FL sensor is measured. The DFB FL sensor shows different dynamic behaviors in different pump configurations. According to the asymmetric behavior to the external optical feedback, a novel method to find the actual phase shift position of the asymmetric DFB FL sensor is presented.

Wen LIU, Lina MA, Zhengliang HU, Ying FENG, Huayong YANG. Study of Rayleigh-Backscattering Induced Coherence Collapse in an Asymmetric DFB FL Sensor[J]. Photonic Sensors, 2016, 6(3): 209. Wen LIU, Lina MA, Zhengliang HU, Ying FENG, Huayong YANG. Study of Rayleigh-Backscattering Induced Coherence Collapse in an Asymmetric DFB FL Sensor[J]. Photonic Sensors, 2016, 6(3): 209.

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