High spatial resolution temperature field measurements by apodized short fiber Bragg grating sensors

Jingtao Xin; Wei Zhuang; Xiaoping Lou; Lianqing Zhu; Mingli Dong

doi:10.1117/1.OE.58.6.064102

10 June 2019 High spatial resolution temperature field measurements by apodized short fiber Bragg grating sensors

Jingtao Xin, Wei Zhuang, Xiaoping Lou, Lianqing Zhu, Mingli Dong

Author Affiliations +

Optical Engineering, Vol. 58, Issue 6, 064102 (June 2019). https://doi.org/10.1117/1.OE.58.6.064102

Abstract

To realize the high spatial resolution measurement of the temperature field, a temperature sensor array composed of eight apodized short fiber Bragg gratings with grating length of 1 mm and spatial spacing of 2 mm are fabricated. To suppress the side lobes, apodization methods by single-slit diffraction are designed. The sensor array is proposed to measure the real-time temperature distribution. The experimental results show that the temperature-sensing array can accurately measure the temperature field distribution with high spatial resolution and rapid response.

Citation Download Citation

Jingtao Xin, Wei Zhuang, Xiaoping Lou, Lianqing Zhu, and Mingli Dong "High spatial resolution temperature field measurements by apodized short fiber Bragg grating sensors," Optical Engineering 58(6), 064102 (10 June 2019). https://doi.org/10.1117/1.OE.58.6.064102

Received: 18 December 2018; Accepted: 6 May 2019; Published: 10 June 2019

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