All-Fiber Laser-Self-Mixing Interferometer With Adjustable Injection Intensity for Remote Sensing of 40 km

被引：16

作者：

Li, Ruifeng ^{[1
,2
]}

Hu, Zhijia ^{[1
,2
]}

Li, Hongtao ^{[1
,2
]}

Zhao, Yunkun ^{[1
,3
]}

Liu, Keyan ^{[1
,2
]}

Tu, Yourui ^{[1
,2
]}

Du, Zhengting ^{[4
]}

Yu, Qi ^{[1
,2
]}

Yu, Benli ^{[1
,2
]}

Lu, Liang ^{[1
,2
,5
]}

机构：

[1] Anhui Univ, Informat Mat & Intelligent Sensing Lab Anhui Prov, Hefei 230601, Peoples R China

[2] Anhui Univ, Key Lab Optoelect Informat Acquisit & Manipulat, Minist Educ, Hefei 230601, Peoples R China

[3] Univ Sci & Technol China USTC, Natl Synchrotron Radiat Lab, Hefei 230029, Peoples R China

[4] Hefei Normal Univ, Sch Phys & Mat Engn, Hefei 230601, Peoples R China

[5] Anhui Univ, Inst Phys Sci & Informat Technol, Hefei 230601, Peoples R China

来源：

JOURNAL OF LIGHTWAVE TECHNOLOGY | 2022年 / 40卷 / 14期

基金：

中国国家自然科学基金;

关键词：

Semiconductor lasers; Laser feedback; Measurement by laser beam; Optical feedback; Optical attenuators; Power lasers; Pump lasers; Laser-self-mixing; optical feedback interfero- metry; adjustable injection intensity; remote sensing; all-fiber; FEEDBACK INTERFEROMETRY; SEMICONDUCTOR-LASER; DISTANCE; SENSOR; NOISE; SIGNAL;

D O I：

10.1109/JLT.2022.3170459

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：

In this article, we propose an all-fiber self-mixing velocimeter based on a DBR fiber laser with adjustable injection intensity for the first time, and theoretically and experimentally explore the behavior of fiber lasers in detecting non-cooperative target under different injection intensities. When the ultra-strong injection level is attained, the linewidth of the DBR fiber laser will be narrowed to about 10 kHz, thus extending the coherence distance of laser tremendously. Simultaneously, the intensity noise can be also significantly suppressed. The non-cooperative target velocity measurement with 40 km single-channel transmission distance has been successfully achieved. This velocimeter is shown to be of great significance in the field of remote sensing with simple and compact configuration, and adjustable dynamical monitoring range.

引用

页码：4863 / 4870

页数：8