Studies on merged Sagnac-Michelson interferometer for detecting phase sensitive events on fiber optic cables

Author

Mohanan, Bibi ; Shaija, P.J. ; Varghese, S.

Author_Institution

Dept. of Electron. & Commun, Model Eng. Coll., Thrikkakkara, India

fYear

2013

fDate

22-23 March 2013

Firstpage

84

Lastpage

89

Abstract

A fiber optic interferometric system to detect, classify and locate phase sensitive events in fiber optic cables, with sufficient accuracy and early warning capabilities is presented. The system is capable of detecting events including vibration and localized temperature. The system makes use of two standard fibers that are already installed in the cable. The monitoring is done from a centralized location where the detection opto-electronics is located. Spatial event localization within 200m is demonstrated for a monitoring length of 40Km.

Keywords

Michelson interferometers; Sagnac interferometers; alarm systems; fibre optic sensors; optical cables; optoelectronic devices; phase detectors; vibration measurement; centralized location monitoring; early warning capability; fiber optic cable; fiber optic interferometric system; merged Sagnac-Michelson interferometer; optoelectronics detection; phase sensitive event classification; phase sensitive event detection; phase sensitive event location; size 200 m; size 40 km; spatial event localization; temperature localization; vibration; Optical fiber cables; Optical fiber sensors; Optical fibers; Optical interferometry; Sagnac interferometers; Sagnac-Michelson interferometer; fiber optic sensors; interferometric sensors; perimeter protection;

fLanguage

English

Publisher

ieee

Conference_Titel

Automation, Computing, Communication, Control and Compressed Sensing (iMac4s), 2013 International Multi-Conference on

Conference_Location

Kottayam

Print_ISBN

978-1-4673-5089-1

Type

conf

DOI

10.1109/iMac4s.2013.6526388

Filename

6526388