GRATING SENSOR ARRAY DEMODULATION BY USE OF A PASSIVELY MODE-LOCKED FIBER LASER

Authors
DENNIS ML PUTNAM MA KANG JU TSAI TE DULING IN FRIEBELE EJ
Citation
Ml. Dennis et al., GRATING SENSOR ARRAY DEMODULATION BY USE OF A PASSIVELY MODE-LOCKED FIBER LASER, Optics letters, 22(17), 1997, pp. 1362-1364
Citations number
16
Categorie Soggetti
Optics
Journal title
Optics letters → ACNP
ISSN journal
01469592
Volume
22
Issue
17
Year of publication
1997
Pages
1362 - 1364
Database
ISI
SICI code
0146-9592(1997)22:17<1362:GSADBU>2.0.ZU;2-K
Abstract
A fiber Bragg grating sensor array is interrogated by use of a passive ly mode-locked fiber laser source. A novel demodulation scheme that us es highly dispersive fiber to convert the grating wavelength shift to a temporal shift in the arrival time of the reflected pulses is demons trated. The source bandwidth of >85 nm permits interrogation of many-g rating arrays, and the demodulation technique permits fast sensing of large strains.