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

Authors
Grubsky, V Feinberg, J
Citation
V. Grubsky et J. Feinberg, Long-period fiber gratings with variable coupling for real-time sensing applications, OPTICS LETT, 25(4), 2000, pp. 203-205
Citations number
5
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science","Optics & Acoustics
Journal title
OPTICS LETTERS
ISSN journal
01469592 → ACNP
Volume
25
Issue
4
Year of publication
2000
Pages
203 - 205
Database
ISI
SICI code
0146-9592(20000215)25:4<203:LFGWVC>2.0.ZU;2-N
Abstract
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 0.0 4 degrees C in temperature. Such sensors require no spectrometer or other f requency-selective components and can operate in real time. (C) 2000 Optica l Society of America OCIS codes: 060.2370, 060.2400, 060.2340, 350.2770.