Abstract

At cryogenic temperature, a fiber Bragg grating (FBG) temperature sensor with controllable sensitivity and variable measurement range is demonstrated by using bimetal configuration. In experiments, sensitivities of -51.2, -86.4, and -520 pm/K are achieved by varying the lengths of the metals. Measurement ranges of 293-290.5, 283-280.5, and 259-256.5 K are achieved by shortening the distance of the gap among the metals.

© 2009 Chinese Optics Letters

Fiber Bragg grating cryogenic temperature sensors

Sanjay Gupta, Toru Mizunami, Takashi Yamao, and Teruo Shimomura
Appl. Opt. 35(25) 5202-5205 (1996)

Fiber Bragg grating temperature sensor with controllable sensitivity

Jaehoon Jung, Hui Nam, Byoungho Lee, Jae Oh Byun, and Nam Seong Kim
Appl. Opt. 38(13) 2752-2754 (1999)

Temperature and strain sensitivities of a groove bonded fiber Bragg grating at room and cryogenic temperatures

Xiyong Huang, Mike Davies, Dominic A. Moseley, Erica E. Salazar, Charlie Sanabria, Owen Duke, Bart M. Ludbrook, and Rodney A. Badcock
Appl. Opt. 61(28) 8427-8434 (2022)

High-sensitivity fiber Bragg grating strain sensor of the substrate type

Ruilei Zhang, Xi Wu, Li Hong, Jiheng Jin, and Guoxi Li
Appl. Opt. 61(35) 10567-10573 (2022)

High-sensitivity temperature-independent differential pressure sensor using fiber Bragg gratings

Hao-Jan Sheng, Wen-Fung Liu, Kuei-Ru Lin, Sheau-Shong Bor, and Ming-Yue Fu
Opt. Express 16(20) 16013-16018 (2008)