Impedance self-matching ultra-narrow linewidth fiber resonator by use of a tunable π-phase-shifted FBG

In this paper, we present a novel ultra-narrow linewidth fiber resonator formed by a tunable polarization maintaining (PM) π -phase-shifted fiber Bragg grating and a PM uniform fiber Bragg grating with a certain length of PM single mode fiber patch cable between them. Theoretical prediction shows th...

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Published inScientific reports Vol. 7; no. 1; pp. 1895 - 11
Main Authors Jing, Mingyong, Yu, Bo, Hu, Jianyong, Hou, Huifang, Zhang, Guofeng, Xiao, Liantuan, Jia, Suotang
Format Journal Article
LanguageEnglish
Published London Nature Publishing Group UK 15.05.2017
Nature Publishing Group
Nature Portfolio
Subjects
140/125
639/624/1075/1083
639/624/1075/187
Humanities and Social Sciences
Impedance
Lasers
Light
multidisciplinary
Optics
Propagation
Science
Science (multidisciplinary)
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Summary:In this paper, we present a novel ultra-narrow linewidth fiber resonator formed by a tunable polarization maintaining (PM) π -phase-shifted fiber Bragg grating and a PM uniform fiber Bragg grating with a certain length of PM single mode fiber patch cable between them. Theoretical prediction shows that this resonator has ultra-narrow linewidth resonant peaks and is easy to realize impedance matching. We experimentally obtain 3 MHz narrow linewidth impedance matched resonant peak in a 7.3 m ultra-long passive fiber cavity. The impedance self-matching characteristic of this resonator also makes itself particularly suitable for use in ultra-sensitive sensors, ultra-narrow band rejection optical filters and fiber lasers applications.
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ISSN:2045-2322
2045-2322
DOI:10.1038/s41598-017-02112-5