Grating sensor array demodulation by use of a passively mode-locked fiber laser

A fiber Bragg grating sensor array is interrogated by use of a passively mode-locked fiber laser source. A novel demodulation scheme that uses highly dispersive fiber to convert the grating wavelength shift to a temporal shift in the arrival time of the reflected pulses is demonstrated. The source b...

Full description

Saved in:
Bibliographic Details
Published in:Optics letters 1997-09, Vol.22 (17), p.1362-1364
Main Authors: Dennis, M L, Putnam, M A, Kang, J U, Tsai, T E, Duling Iii, I N, Friebele, E J
Format: Article
Language:English
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:A fiber Bragg grating sensor array is interrogated by use of a passively mode-locked fiber laser source. A novel demodulation scheme that uses highly dispersive fiber to convert the grating wavelength shift to a temporal shift in the arrival time of the reflected pulses is demonstrated. The source bandwidth of >85 nm permits interrogation of many-grating arrays, and the demodulation technique permits fast sensing of large strains.
ISSN:0146-9592
1539-4794
DOI:10.1364/OL.22.001362