Switchable Optoelectronic Oscillator Using an FM-PS-FBG for Strain and Temperature Sensing

被引：29

作者：

Liu, Jingxuan ^{[1
,2
]}

Wang, Muguang ^{[1
,2
]}

Tang, Yu ^{[1
,2
]}

Yang, Yuguang ^{[1
,2
]}

Wu, Yue ^{[1
,2
]}

Jin, Wenxing ^{[1
,2
]}

Jian, Shuisheng ^{[1
,2
]}

机构：

[1] Beijing Jiaotong Univ, Key Lab All Opt Network, Beijing 100044, Peoples R China

[2] Beijing Jiaotong Univ, Adv Telecommun Network, Minist Educ, Inst Lightwave Technol, Beijing 100044, Peoples R China

来源：

IEEE PHOTONICS TECHNOLOGY LETTERS | 2017年 / 29卷 / 23期

基金：

中国国家自然科学基金;

关键词：

Optical fiber sensor; microwave photonics; optoelectronic oscillator; few-mode fiber; fiber Bragg grating; SENSOR;

D O I：

10.1109/LPT.2017.2758965

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：

By incorporating a phase-shifted fiber Bragg grating (PS-FBG) inscribed in few-mode fiber (FMF) named FM-PS-FBG for the first time, a novel frequency-switchable optoelectronic oscillator (OEO) to perform simultaneous strain and temperature measurement is proposed and experimentally demonstrated. In the OEO loop, two switchable oscillation frequencies are determined by the reflected bands of FM-PSFBG based on different mode couplings and corresponding notches. Due to the characteristics of modes, two OEO-generated microwave signals exhibit different strain and temperature sensitivities. Therefore, through monitoring the frequency shifts of microwave signals, the simultaneous strain and temperature sensing can be realized by the proposed OEO sensor with highspeed and high-resolution interrogation.

引用

页码：2008 / 2011

页数：4

共 18 条

[1] Simultaneous strain and temperature measurement with long-period gratings [J].