A half-open cavity random fiber laser based on a single-mode fiber and fiber Bragg grating

被引：0
|
作者：
He, Wei [1 ]
Li, Zhihan [1 ]
Li, Shaode [1 ]
Ma, Siqi [1 ]
Zhang, Wenduo [1 ]
机构：
[1] Beijing Informat Sci & Technol Univ, Key Lab Minist Educ Optoelect Measurement Technol, Beijing 100192, Peoples R China
来源：
LASER PHYSICS | 2024年 / 34卷 / 05期
基金：
中国国家自然科学基金;
关键词：
random fiber laser; single-mode fiber; fiber Bragg grating; stretch sensing;
D O I：
10.1088/1555-6611/ad3432
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
A random erbium-doped fiber laser based on fiber Bragg grating (FBG) and single-mode fiber (SMF) was designed and realized experimentally in this study. For the proposed random fiber laser (RFL), the 10 km long SMF was used to generate Rayleigh scattering (RS) emissions, along with FBG to provide randomly distributed feedback in the cavity. In the experiment, the RFL laser threshold is 55 mW, as the pump power is increasingly improved to 175 mW. The RS effect is gradually apparent, and 1531.59nm laser beam was formed. The signal-to-noise ratio was 38.4 dB. The FBG was stretched for sensing applications, and the lasing wavelength was adjusted from 1531.59 to 1533.83 nm when the grating was stretched from 0 to 2000 mu epsilon.
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页数：7
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