A fiber laser temperature sensor based on SMF core-offset structure

被引：44
作者：
Hao, Xia [1 ]
Tong, Zhengrong [1 ]
Zhang, Weihua [2 ]
Cao, Ye [1 ]
机构：
[1] Tianjin Univ Technol, Sch Comp & Commun Engn, Tianjin Key Lab Film Elect & Commun Devices, Tianjin, Peoples R China
[2] Tianjin Univ Technol, Sch Elect Informat Engn, Tianjin Key Lab Film Elect & Commun Devices, Tianjin, Peoples R China
来源：
OPTICS COMMUNICATIONS | 2015年 / 335卷
关键词：
Fiber laser sensor; Core-offset structure; Temperature measurement; MODE; INTERFEROMETER; CAVITY;
D O I：
10.1016/j.optcom.2014.08.065
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
A simple and low cost fiber laser temperature sensor based On all-fiber single-mode core-offset structure has been demonstrated. When temperature is applied on the core-offset structure filter, the pass-band varies and the wavelength of the output laser shifts correspondingly. A good temperature sensitivity of 0.0449 nm/degrees C and a detection limit of 0.42 degrees C are achieved with measuring range from 30 degrees C to 270 degrees C. Compared with the conventional temperature sensing system, a 980 nm laser diode is used as the light source and less detection limit, higher output power and the side-mode suppression ratio (SMSR) are obtained by the proposed fiber laser sensor. (C) 2014 Elsevier B.V. All rights reserved.
引用
收藏
页码：78 / 81
页数：4
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