Flexible fabrication of long-period in-fiber gratings

Author

Everall, L.A. ; Fallon, R.W. ; Williams, J.A.R. ; Zhang, Leiqi ; Bennion, I.

Author_Institution

Div. of Electron. Eng. & Comput. Sci., Aston Univ., Birmingham, UK

fYear

1998

fDate

3-8 May 1998

Firstpage

513

Lastpage

514

Abstract

Summary form only given. We have demonstrated a novel, simple, low-cost and all-fiber interrogation technique for a strain/temperature fiber Bragg sensor using a long-period grating. We show the schematic diagram of the demodulation scheme. The amount of light transmitted by the long-period grating is determined by its wavelength and is therefore proportional to the wavelength of the backreflected light from the fiber Bragg sensor acting as a spectral filter.

Keywords

Bragg gratings; fibre optic sensors; light reflection; optical fibre fabrication; optical fibre filters; strain measurement; strain sensors; temperature measurement; all-fiber interrogation technique; backreflected light wavelength; demodulation scheme; fiber Bragg sensor; light transmission; long-period in-fiber grating fabrication; low-cost; optical fibre filters; schematic diagram; spectral filter; strain fiber Bragg sensor; temperature fiber Bragg sensor; Bragg gratings; Fiber gratings; Fiber lasers; Optical device fabrication; Optical fibers; Optical interferometry; Optical pulses; Optical waveguides; Silicon compounds; Waveguide lasers;

fLanguage

English

Publisher

ieee

Conference_Titel

Lasers and Electro-Optics, 1998. CLEO 98. Technical Digest. Summaries of papers presented at the Conference on

Conference_Location

San Francisco, CA, USA

Print_ISBN

1-55752-339-0

Type

conf

DOI

10.1109/CLEO.1998.676567

Filename

676567