Abstract

Optical fiber sensors have numerous advantages over electrical sensors. However, in some cases, sensing systems based on optical fiber sensors are inferior to electrical sensors in terms of cost because expensive instruments are required. Therefore, cost-effective options must be developed. Here, inexpensive optical transceivers (OTRs) for Ethernet were used instead of a broadband light source and optical spectrum analyzer, and a ${\mathrm{CO}}_2$ laser-induced long-period fiber grating (LPFG) was used as a temperature sensor. The sensing system was implemented introducing OTRs and LPFG in an experimental internet protocol (IP) over Ethernet. The results showed that a low-cost sensing system can estimate the ambient temperature of the LPFG based on the no-reply rate for the internet control message protocol echo request. Regarding the sensing performance, the measurable range was $\sim 100°\mathrm{C}$ with $\pm 4.5°\mathrm{C}$ errors.

© 2019 Optical Society of America

CO₂ laser-grooved long period fiber grating temperature sensor system based on intensity modulation

Yi-Ping Wang, Dong Ning Wang, and Wei Jin
Appl. Opt. 45(31) 7966-7970 (2006)

Design and analysis of long-period fiber gratings in tapered multimode chalcogenide glass fiber for temperature measurement

Leilei Wang, Wenqiang Ma, Peiqing Zhang, Dandan Yang, Liang Zhu, Xunsi Wang, and Shixun Dai
J. Opt. Soc. Am. B 36(7) 1792-1798 (2019)

Simultaneous strain and temperature measurement by cascading few-mode fiber and single-mode fiber long-period fiber gratings

Li Wang, Weigang Zhang, Biao Wang, Lei Chen, Zhiyong Bai, Shecheng Gao, Jieliang Li, Yongji Liu, Liyu Zhang, Quan Zhou, and Tieyi Yan
Appl. Opt. 53(30) 7045-7049 (2014)

Online fabrication scheme of helical long-period fiber grating for liquid-level sensing

Kaili Ren, Liyong Ren, Jian Liang, Xudong Kong, Haijuan Ju, Yiping Xu, and Zhaoxin Wu
Appl. Opt. 55(34) 9675-9679 (2016)

Temperature sensing through long period fiber gratings mechanically induced on tapered optical fibers

María Guadalupe Pulido-Navarro, Ponciano Jorge Escamilla-Ambrosio, Sigifredo Marrujo-García, José Alfredo Álvarez-Chávez, and Fernando Martínez-Piñón
Appl. Opt. 56(19) 5526-5531 (2017)