Triple Brillouin frequency spacing Brillouin fiber laser sensor for temperature measurement

被引：16

作者：

Liu, Yi ^{[1
,2
]}

Shang, Yao ^{[3
,4
]}

Yi, Xiaogang ^{[2
]}

Guo, Rongrong ^{[1
,2
]}

Zheng, Yongqiu ^{[5
]}

机构：

[1] Minist Educ & Shanxi Prov, Key Lab Adv Transducers & Intelligent Control Sys, Taiyuan 030024, Peoples R China

[2] Taiyuan Univ Technol, Coll Phys & Optoelect, Inst Optoelect Engn, Taiyuan 030024, Peoples R China

[3] Taiyuan Univ Technol, Coll Software, Taiyuan 030024, Peoples R China

[4] Taiyuan Univ Technol, Polytech Inst, Taiyuan 030024, Peoples R China

[5] North Univ China, Key Lab Instrumentat Sci & Dynam Measurement, Minist Educ, Taiyuan 030051, Shanxi, Peoples R China

来源：

OPTICAL FIBER TECHNOLOGY | 2020年 / 54卷

关键词：

Brillouin fiber laser; Fiber laser sensor; Triple Brillouin frequency spacing; SUPERLUMINAL PROPAGATION; MICROWAVE; GENERATION; SCATTERING;

D O I：

10.1016/j.yofte.2019.102106

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 triple Brillouin frequency spacing Brillouin fiber laser sensor for temperature measurement is proposed and demonstrated. Fiber under test 1 (FUT1) with 10 km SMF and FUT2 with 5 km SMF are used as Brillouin gain medium and generate the 1st-order Stokes (S1) and 3rd-order Stokes (S3) and 2nd-order Stokes (S2) respectively. Only the pump and S3 circulate in the ring with two optical circulators of three and four port. External perturbations can be effectively reduced and Brillouin gain bandwidth not is deteriorated with 10 MHz bandwidth. About 3 MHz/degrees C sensitivity is consistent with the theoretical value and +/- 0.05 dB power fluctuation and 0.2 degrees C temperature stability are obtained. The proposed structure makes it convenient for more applications.

引用

页数：3

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