Optimization of large-scale fiber sensor arrays incorporating multiple optical amplifiers. I. Signal-to-noise ratio

Author

Hodgson, Craig W. ; Wagener, Jefferson L. ; Digonnet, Michel J F ; Shaw, Herbert J.

Author_Institution

Litton Guidance & Control Syst., Woodland Hills, CA, USA

Volume

16

Issue

2

fYear

1998

fDate

2/1/1998 12:00:00 AM

Firstpage

218

Lastpage

223

Abstract

We report on optimizing the signal-to-noise ratio (SNR) of large-scale fiber sensor arrays employing erbium-doped fiber amplifier (EDFA) telemetry with respect to the number of sensors per rung, the number of amplifiers per array, and the coupling ratio between the fiber buses and the rungs. Broad optimum regions are found, providing design flexibility to minimize pump power requirements. Simulations predict that 300 sensors can be multiplexed on a fiber pair while maintaining a high sensitivity (1 μrad/√(Hz)) for all sensors with a moderate input pump power (<1 W)

Keywords

arrays; fibre lasers; fibre optic sensors; optical noise; optical pumping; optimisation; sensitivity; time division multiplexing; 1 W; broad optimum regions; coupling ratio; design flexibility; erbium-doped fiber amplifier; fiber buses; high sensitivity; large-scale fiber sensor arrays optimisation; moderate input pump power; multiple optical amplifiers; pump power requirements; signal-to-noise ratio; Erbium-doped fiber amplifier; Large-scale systems; Optical arrays; Optical fiber amplifiers; Optical fiber sensors; Optical sensors; Pulse amplifiers; Semiconductor optical amplifiers; Sensor arrays; Stimulated emission;

fLanguage

English

Journal_Title

Lightwave Technology, Journal of

Publisher

ieee

ISSN

0733-8724

Type

jour

DOI

10.1109/50.661013

Filename

661013