Multiplexed LPG sensor system using an InGaAs CCD linear array and optical switches

Author

Balzhiev, Plamen ; Bock, Wojtek J. ; Mikulic, Predrag ; Eftimov, Tinko A. ; Arnaudov, Rumen ; Plachkova, Vania

Author_Institution

Fac. of Telecommun., Tech. Univ. of Sofia., Sofia, Bulgaria

fYear

2013

fDate

1-4 July 2013

Firstpage

355

Lastpage

360

Abstract

In this paper we report our progress on the development of a spatially and spectrally multiplexed LPG-based fiber-optic sensor that uses an InGaAs CCD linear array and a diffraction grating for the detection of spectral changes. Three 1×2 fiber-optical switches are used to realize a system of spatial multiplexing of four sensing channels. Up to three LPGs can be connected in series in each channel covering a spectral range from 1525 nm to 1610 nm. The gratings are interrogated in a reflective mode using a tunable fiber reflector and a circulator. The system´s performance was tested using bending and mechanical deformations on the gratings.

Keywords

III-V semiconductors; bending; charge-coupled devices; diffraction gratings; fibre optic sensors; optical switches; space division multiplexing; CCD linear array; InGaAs; bending; circulator; diffraction grating; fiber-optical switches; gratings; mechanical deformations; multiplexed LPG sensor system; sensing channels; spatial multiplexing; spectral changes detection; tunable fiber reflector; wavelength 1525 nm to 1610 nm; Charge coupled devices; Fiber gratings; Multiplexing; Optical fiber sensors; Optical fibers; Optical switches; Long-period gratings; bending sensor; multiplexing; optical switches; sensors;

fLanguage

English

Publisher

ieee

Conference_Titel

EUROCON, 2013 IEEE

Conference_Location

Zagreb

Print_ISBN

978-1-4673-2230-0

Type

conf

DOI

10.1109/EUROCON.2013.6625008

Filename

6625008