Abstract
In this paper, we demonstrate a microwave photonic (MWP) approach for interrogating multiple linearly chirped fiber Bragg grating (LCFBG) temperature sensors. The MWP interrogation system is based on an arrayed waveguide grating Sagnac interferometer, incorporating multiple LCFBG sensors, that is used to generate multiple chirped microwave waveforms whose characteristics are uniquely related to those of the LCFBGs. Compressing the generated microwave signals allows monitoring simultaneously and independently the shifts associated with applying temperature changes to each LCFBG in real time.
© 2018 Optical Society of America
Full Article | PDF ArticleMore Like This
Maria I. Comanici, Lawrence R. Chen, and Peter Kung
Appl. Opt. 56(32) 9074-9078 (2017)
Le Li, Yiping Wang, Dan Zhu, Xiaozhong Tian, Jingzhan Shi, Lingge Gao, and Yunhao Xiao
Appl. Opt. 62(2) 367-372 (2023)
Qiang Wu, Agus Muhammad Hatta, Yuliya Semenova, and Gerald Farrell
Appl. Opt. 48(29) 5451-5458 (2009)