Michelson interferometer composite cavity fiber laser sensor with radio frequency interrogation

被引：0
|
作者：
Wang, Xu [1 ]
Wang, Enlai [1 ]
Wang, Fang [1 ]
机构：
[1] Henan Normal Univ, Coll Elect & Elect Engn, Xinxiang 453007, Henan, Peoples R China
来源：
CHINESE OPTICS LETTERS | 2022年 / 20卷 / 04期
基金：
中国国家自然科学基金;
关键词：
Michelson interferometer; compound cavity; multi-longitudinal mode beat frequency; radio-frequency detection;
D O I：
10.3788/COL202220.040603
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
A Michelson interferometer (MI) composite cavity fiber laser sensing system based on radio frequency (RF) interrogation is proposed and experimentally demonstrated. The system down-converts the traditional MI light frequency detection to RF detection, which improves the stability of the system. The optic fiber MI is placed in the laser resonator to form a composite cavity structure, which greatly improves the sensitivity of beat frequency signal demodulation.
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页数：5
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