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	Temperature sensor and temperature sensing system based on active phase-shifted fibre grating
	GUO, JIAN; WANG, CHANG; NI, JIASHENG; PENG, GANGDING; SONG, ZHIQIANG; QI, HAIFENG; WANG, WEITAO
	2018-04-12
著作权人	LASER INSTITUTE OF SHANDONG ACADEMY OF SCIENCE
专利号	US20180100773A1
国家	美国
文献子类	发明申请
其他题名	Temperature sensor and temperature sensing system based on active phase-shifted fibre grating
英文摘要	Provided are a temperature sensor and an active phase-shifted grating-based temperature sensing system, relating to a fibre sensing technical field. The temperature sensor comprises a pump laser, a wavelength division multiplexer, an optical detector and an active phase-shifted fibre grating with π phase shift. Pump light emitted by the pump laser enters the active phase-shifted fibre grating through the wavelength division multiplexer. The active phase-shifted fibre grating absorbs the pump light and emits laser light, which travels back through the wavelength division multiplexer and enters the optical detector. The optical detector measures output power of the active phase-shifted fibre grating, to analyze the power to obtain ambient temperature of the active phase-shifted fibre grating. Compared with wavelength demodulation based fibre grating sensors, this temperature sensor can obtain ambient temperature of the active phase-shifted fibre grating solely by analyzing output power of the active phase-shifted fibre grating measured by the optical detector.
公开日期	2018-04-12
申请日期	2017-05-25
状态	授权
内容类型	专利
源URL	[http://ir.opt.ac.cn/handle/181661/62570]
专题	半导体激光器专利数据库
作者单位	LASER INSTITUTE OF SHANDONG ACADEMY OF SCIENCE
推荐引用方式 GB/T 7714	GUO, JIAN,WANG, CHANG,NI, JIASHENG,et al. Temperature sensor and temperature sensing system based on active phase-shifted fibre grating. US20180100773A1. 2018-04-12.

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