Novel fiber sensor arrays using erbium-doped fiber amplifiers

Author

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

Author_Institution

Edward L. Ginzton Lab., Stanford Univ., CA, USA

Volume

15

Issue

9

fYear

1997

fDate

9/1/1997 12:00:00 AM

Firstpage

1681

Lastpage

1688

Abstract

We examine the signal-to-noise ratio (SNR) performance of a novel type of time domain multiplexed sensor arrays in which low gain (1-10 dB) fiber amplifiers are incorporated to compensate for splitting losses between sensors. The system noise figure for passive and amplified sensor arrays is presented, along with expressions to optimize the array parameters for high SNRs. We show that practical amplified sensor arrays exhibit low system noise figures that allow much larger arrays (hundreds of sensors) than passive arrays

Keywords

arrays; erbium; fibre lasers; fibre optic sensors; laser noise; multiplexing; optical fibre losses; optical fibre theory; time-domain analysis; 1 to 10 dB; amplified sensor arrays; array parameters; erbium-doped fiber amplifiers; fiber sensor arrays; high SNRs; low gain fiber amplifiers; low system noise figures; passive arrays; passive sensor arrays; signal-to-noise ratio; splitting losses; system noise figure; time domain multiplexed sensor arrays; Erbium-doped fiber amplifier; Noise figure; Optical arrays; Optical fiber amplifiers; Optical fiber cables; Optical fiber sensors; Optical interferometry; Optical sensors; Sensor arrays; Signal to noise ratio;

fLanguage

English

Journal_Title

Lightwave Technology, Journal of

Publisher

ieee

ISSN

0733-8724

Type

jour

DOI

10.1109/50.622894

Filename

622894