Design and development of long-period grating sensors for temperature monitoring

被引：0
|
作者：
Smita Chaubey
Purushottam Joshi
Manoj Kumar
Rajesh Arya
A. K. Nath
Sanjay Kher
机构：
[1] Raja Ramanna Centre for Advanced Technology,Fibre Optics Lab, SSLD
[2] Raja Ramanna Centre for Advanced Technology,Solid State Laser Division
来源：
Sadhana | 2007年 / 32卷
关键词：
Fibre sensor; long period gratings; fibre brag grating; refractive index;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
Long Period Gratings (LPGs) have been developed using carbon dioxide laser in a standard optical fibre. LPGs with a periodicity of 600 μm and grating length of 24 mm have been inscribed on standard single mode fibre. Such gratings have been used in designing temperature sensors and temperature is monitored up to 80°C. The sensitivity of such type of sensor is 0·06 nm/°C where as for standard Fibre Bragg Grating (FBG) it is 0·011 nm/°C. The LPG performance is also evaluated after γ-ray irradiation for total dose of 5 KGy and has not shown any effect on transmission spectrum.
引用
收藏
页码：513 / 519
页数：6
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