Accurate measurement of the Brillouin frequency shift in optical fibers using a doubly phase-modulated probe light

Author

Tsuji, Kenichiro ; Kim, Jungmin ; Oiwa, Masaki ; Onodera, Noriaki ; Saruwatari, Masatoshi

Author_Institution

Dept. of Commun. Eng., Nat. Defense Acad., Yokosuka

fYear

2008

fDate

7-10 July 2008

Firstpage

1

Lastpage

2

Abstract

We propose an accurate measurement method of the Brillouin frequency shift in optical fibers applicable for distributed strain/temperature measurement, using a doubly phase-modulated probe light. Its accuracy and the usefulness are experimentally demonstrated.

Keywords

Brillouin spectra; fibre optic sensors; measurement by laser beam; optical modulation; phase modulation; strain measurement; strain sensors; temperature measurement; temperature sensors; Brillouin frequency shift; Brillouin-based fiber-optic sensors; accurate measurement method; doubly phase-modulated probe light; strain measurement; temperature measurement; Frequency measurement; Frequency modulation; Optical fibers; Optical filters; Optical modulation; Optical pumping; Optical sensors; Optical variables control; Phase measurement; Probes;

fLanguage

English

Publisher

ieee

Conference_Titel

Opto-Electronics and Communications Conference, 2008 and the 2008 Australian Conference on Optical Fibre Technology. OECC/ACOFT 2008. Joint conference of the

Conference_Location

Sydney

Print_ISBN

978-0-85825-807-5

Electronic_ISBN

978-0-85825-807-5

Type

conf

DOI

10.1109/OECCACOFT.2008.4610470

Filename

4610470