Crosstalk analysis and system design of time-division multiplexing of polarization-insensitive fiber optic Michelson interferometric sensors

Author

Huang, Shih-Chu ; Lin, Wuu-Wen ; Chen, Mao-Hsiung ; Hung, Shoren-Chien ; Chao, Hung-Lung

Author_Institution

Inst. of Electr. Eng., Nat. Sun Yat-Sen Univ., Kaohsiung, Taiwan

Volume

14

Issue

6

fYear

1996

fDate

6/1/1996 12:00:00 AM

Firstpage

1488

Lastpage

1500

Abstract

The time-division multiplexing of polarization-insensitive fiber optic Michelson interferometric sensors (TDM-PIFOMI) with compensating interferometer is presented. The lead crosstalk in a general time-division multiplexing of the fiber optic interferometric sensors is described and demonstrated. The sensor crosstalk of TDM-PIFOMI for optical gate with finite extinction ratio is analyzed and using a laser source with adequate coherence length to reduce sensor crosstalk is suggested. The delay fiber crosstalk and noise of TDM-PIFOMI by Rayleigh backscattering is analyzed and demonstrated. We also suggest some methods that could possibly reduce the effect of the Rayleigh backscattered light. Finally, the advanced system design of TDM-PIFOMI is described

Keywords

Michelson interferometers; Rayleigh scattering; backscatter; compensation; fibre optic sensors; light scattering; optical crosstalk; optical fibre polarisation; optical noise; time division multiplexing; Rayleigh backscattered light; Rayleigh backscattering; TDM-PIFOMI; advanced system design; coherence length; compensating interferometer; crosstalk analysis; delay fiber crosstalk; fiber optic interferometric sensors; finite extinction ratio; laser source; lead crosstalk; optical gate; polarization-insensitive fiber optic Michelson interferometric sensors; sensor crosstalk; system design; time-division multiplexing; Extinction ratio; Optical crosstalk; Optical fiber polarization; Optical fiber sensors; Optical fibers; Optical interferometry; Optical noise; Optical sensors; Sensor phenomena and characterization; System analysis and design;

fLanguage

English

Journal_Title

Lightwave Technology, Journal of

Publisher

ieee

ISSN

0733-8724

Type

jour

DOI

10.1109/50.511678

Filename

511678