Linewidth suppression mechanism of self-injection locked single-frequency fiber laser

Linewidth suppression mechanism of the self-injection locked single-frequency fiber laser (SFFL) is investigated theoretically and experimentally. An analytical model based on the semi-phenomenological approach is built up to characterize the optical feedback in SFFL. According to the theoretical pr...

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Published inOptics express Vol. 24; no. 17; pp. 18907 - 18916
Main Authors Huang, Xiang, Zhao, Qilai, Lin, Wei, Li, Can, Yang, Changsheng, Mo, Shupei, Feng, Zhouming, Deng, Huaqiu, Yang, Zhongmin, Xu, Shanhui
Format Journal Article
LanguageEnglish
Published United States 22.08.2016
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Summary:Linewidth suppression mechanism of the self-injection locked single-frequency fiber laser (SFFL) is investigated theoretically and experimentally. An analytical model based on the semi-phenomenological approach is built up to characterize the optical feedback in SFFL. According to the theoretical prediction, the linewidth tends to be reduced with longer external cavity photon lifetime. Experimentally, a 200-Hz linewidth self-injection locked SFFL is achieved with 101 m long delay fiber, which agrees well with the theoretical simulation. The model provides a new perspective to understand the mechanism of linewidth reduction of self-injection locked SFFL.
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ISSN:1094-4087
1094-4087
DOI:10.1364/OE.24.018907