Long-period fiber grating based high temperature sensor

被引：2
|
作者：
Song, S [1 ]
Yu, QX [1 ]
机构：
[1] Dalian Univ Technol, Dept Phys, Dalian 116024, Peoples R China
来源：
PASSIVE COMPONENTS AND FIBER-BASED DEVICES, PTS 1 AND 2 | 2005年 / 5623卷
关键词：
high temperature sensor; long-period fiber grating; CO2 laser irradiate; temperature sensitivity;
D O I：
10.1117/12.575741
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
In this paper, we studied temperature characters of LPFG fabricated with a new designed system, which focuses the CO2 laser pulse beam on standard single mode fiber with azimuthally symmetric irradiation. A high temperature optical fiber sensor based on such a LPFG has average high temperature sensitivity of 0. 16nm/degreesC, large dynamic range of 0degreesC to 600degreesC, good temperature repeatability and simple configuration. Meanwhile, the sensor with different temperature measurement range can be easily obtained by adjusting the fabricating parameter of LPFG. The temperature sensor with those advantages has a potential of measuring temperature as high as 900degreesC.
引用
收藏
页码：20 / 23
页数：4
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