Long-period fiber gratings with variable coupling for real-time sensing applications

被引:77
作者
Grubsky, V [1 ]
Feinberg, J
机构
[1] Univ So Calif, Dept Phys, Los Angeles, CA 90089 USA
[2] D STAR Technol Inc, Manhattan Beach, CA 90266 USA
关键词
D O I
10.1364/OL.25.000203
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
We demonstrate a long-period grating whose resonance varies in strength but remains fixed in wavelength with either temperature or strain. Using this fiber-grating sensor, we resolved a change of 1 mu epsilon of strain or 0.04 degrees C in temperature. Such sensors require no spectrometer or other frequency-selective components and can operate in real time. (C) 2000 Optical Society of America OCIS codes: 060.2370, 060.2400, 060.2340, 350.2770.
引用
收藏
页码:203 / 205
页数:3
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