Temperature coefficient of sideband frequencies produced by depolarized guided acoustic-wave Brillouin scattering

Author

Tanaka, Yosuke ; Ogusu, Kazuhiko

Author_Institution

Shizuoka Univ., Hamamatsu, Japan

Volume

10

Issue

12

fYear

1998

Firstpage

1769

Lastpage

1771

Abstract

By guided acoustic-wave Brillouin scattering (GAWBS), an optical beam propagating in an optical fiber is scattered and the phase and/or state of polarization are modulated. As a basic study of a temperature sensor based on GAWBS, we have measured the temperature coefficient of depolarized-GAWBS-induced sideband frequencies in a silica core single-mode optical fiber. The experimental result shows that the temperature coefficient for TR/sub 25/ mode is 10 kHz//spl deg/C and that for TR/sub 28/ mode is 14 kHz//spl deg/C, which agrees well with the analytically derived result.

Keywords

Brillouin spectra; acousto-optical devices; fibre optic sensors; optical fibre polarisation; temperature sensors; GAWBS; depolarized guided acoustic wave Brillouin scattering; optical beam propagation; sideband frequency; silica core single-mode optical fiber; temperature coefficient; temperature sensor; Acoustic propagation; Acoustic scattering; Brillouin scattering; Frequency; Optical beams; Optical fibers; Optical propagation; Optical scattering; Temperature measurement; Temperature sensors;

fLanguage

English

Journal_Title

Photonics Technology Letters, IEEE

Publisher

ieee

ISSN

1041-1135

Type

jour

DOI

10.1109/68.730497

Filename

730497