53-dB phase noise suppression and Hz-range linewidth emission in compact Brillouin/erbium fiber laser

被引：23

作者：

Chen, Mo ^{[1
]}

Wang, Chenyu ^{[1
]}

Wang, Jianfei ^{[1
]}

Luo, Hong ^{[1
]}

Meng, Zhou ^{[1
]}

机构：

[1] Natl Univ Def Technol, Acad Ocean Sci & Engn, Changsha 410073, Hunan, Peoples R China

来源：

OPTICS EXPRESS | 2017年 / 25卷 / 16期

基金：

中国国家自然科学基金;

关键词：

FREQUENCY; SCATTERING;

D O I：

10.1364/OE.25.019216

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We demonstrate 53-dB phase noise reduction in a compact Brillouin/erbium fiber laser (BEFL), which uses 4-m erbium-doped-fiber (EDF) providing both the Brillouin gain and linear gain. A 360-kHz-linewidth laser diode is used as the Brillouin pump (BP) and excites the Brillouin Stokes light. The linewidth of the BEFL is estimated 1.8-Hz based on the correlation between the linewidth and phase noise. Experimental result demonstrates 6-Hz linewidth by beating the emission of two compact BEFLs. This fiber laser provides a simple and effective method to reduce laser phase noise and realize ultra-narrow-linewidth light. It presents many applications in such as interferometric fiber sensing, coherent optical communications, optical clocks, and precise spectroscopy. (C) 2017 Optical Society of America

引用

页码：19216 / 19225

页数：10

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