The configuration analysis of fiber optic interferometer of hydrophones

Author

Lin, W.W. ; Chang, C.F. ; Wu, C.W. ; Chen, M.C.

Author_Institution

Ta Jen Inst. of Technol., Pingtung, Taiwan

Volume

2

fYear

2004

fDate

9-12 Nov. 2004

Firstpage

589

Abstract

This paper describes a configuration analysis of optical fiber interferometric hydrophones. We use mathematical methods to compare their characteristics and relation of sensitivity, delay fiber and physical frequency of the Sagnac type interferometer. In the experiment, we use PGC modulation technology and measure the sensitivity of the three types interferometer in this paper proposed. The preliminary results of the acoustic signal sensitivity are as follows: Michelson, compensating type Mach-Zehnder interferometer. Hybrid of a Mach-Zehnder and a Sagnac type interferometer are -201.67, -205.97, -212.47 dB re V/1 μPa, respectively.

Keywords

Mach-Zehnder interferometers; Sagnac interferometers; acoustic signal processing; fibre optic sensors; hydrophones; Mach-Zehnder interferometer; Michelson interferometer; PGC modulation technology; Sagnac type interferometer; acoustic signal sensitivity; delay fiber/frequency; fiber optic interferometer sensor; hydrophone; interferometer characteristics/sensitivity relation; phase generated carrier technology; Light sources; Optical fibers; Optical interferometry; Optical modulation; Optical refraction; Optical sensors; Optical signal processing; Optical variables control; Sagnac interferometers; Sonar equipment;

fLanguage

English

Publisher

ieee

Conference_Titel

OCEANS '04. MTTS/IEEE TECHNO-OCEAN '04

Print_ISBN

0-7803-8669-8

Type

conf

DOI

10.1109/OCEANS.2004.1405466

Filename

1405466