Linewidth-narrowed 2-μm single-frequency fiber laser based on stimulated Brillouin scattering effect

被引：1
|
作者：
Fu, Shijie [1 ]
Shi, Wei [1 ]
Zhang, Haiwei [1 ]
Sheng, Quan [1 ]
Bai, Xiaolei [1 ]
Yao, Jianquan [1 ]
机构：
[1] Tianjin Univ, Coll Precis Instrument & Optoelect Engn, Tianjin 300072, Peoples R China
来源：
FIBER LASERS XIV: TECHNOLOGY AND SYSTEMS | 2017年 / 10083卷
基金：
中国国家自然科学基金;
关键词：
single frequency; fiber laser; linewidth narrowing; 2; MU-M; TO-NOISE RATIO; GLASS-FIBER;
D O I：
10.1117/12.2251644
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
A 2-mu m linear-polarized single-frequency Brillouin-Thulium fiber laser (BTFL) has been experimentally investigated for linewidth narrowing. The threshold for the Brillouin pump is around 200 mW, and more than 205 mW single-frequency Stokes laser was achieved with the 793 nm pump power of 8.5 W. The linewidth of the fiber laser has been narrowed for similar to 8 times, from 34 to 4.6 kHz. The measured RIN of the BTFL is <-150 dB/Hz for frequency above 2 MHz, which approaches the shot noise limit.
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页数：6
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