Simultaneous measurement of temperature and strain based on a fiber Bragg grating with cladding made of Electro-optic crystal material

doi:10.1117/12.2249855

CORC > 兰州理工大学 > 兰州理工大学 > 理学院

	Simultaneous measurement of temperature and strain based on a fiber Bragg grating with cladding made of Electro-optic crystal material
	Fan Hang; Liu Yan-Jun; Wang Dao-Bin; Hou Shang-Lin
	2017
关键词	fiber Bragg grating uniaxial crystal material electro-optic effect temperature strain
卷号	10256
DOI	10.1117/12.2249855
英文摘要	In this paper, a novel fiber Bragg grating (FBG) sensor which can measure the temperature and strain simultaneously is presented. The cladding layer of the proposed FBG sensor is made of a uniaxial crystal material (LiTaO3) and the electric field is applied on the 1/2 area of the sensor. The sensing performance was investigated by the coupled-mode theory and dual-wavelength method. We found that the strain sensitivity and the temperature sensitivity of the 1/2 area with no electric field are 0.841 pm/mu epsilon and 14.31 pm/degrees C respectively. If the electric field is increased from 0 to 400x10(7) v/m, the temperature sensitivity of this device varies from 14.31 pm/degrees C to 14.12 pm/degrees C and its strain sensitivity varies from 0.841 pm/mu epsilon to 0.850 pm/mu epsilon. So, the obtained results demonstrate that the simultaneous measurement of temperature and strain can be achieved by using this scheme. The proposed sensor has potential applications in optical fiber sensing systems due to small size, high sensitivity and compatible with optical fiber.
会议录	SECOND INTERNATIONAL CONFERENCE ON PHOTONICS AND OPTICAL ENGINEERING
会议录出版者	SPIE-INT SOC OPTICAL ENGINEERING
会议录出版地	1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
语种	英语
资助项目	Natural Science Fund of Gansu Province of China[1112RJZA018]
WOS研究方向	Optics
WOS记录号	WOS:000405589700155
内容类型	会议论文
源URL	[http://119.78.100.223/handle/2XXMBERH/36254]
专题	理学院
通讯作者	Fan Hang
作者单位	Lanzhou Univ Technol, Sch Sci, Lanzhou 730050, Gansu, Peoples R China
推荐引用方式 GB/T 7714	Fan Hang,Liu Yan-Jun,Wang Dao-Bin,et al. Simultaneous measurement of temperature and strain based on a fiber Bragg grating with cladding made of Electro-optic crystal material[C]. 见:.