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Simultaneous measurement of temperature and strain distribution using Brillouin scattering in dispersion-shifted fibers
- We studied Brillouin gain spectrum characteristics in dispersion-shifted fibers having compound GeO2-doping compositions in the fiber core to realize simultaneous measurement of distributed strain and temperature. Due to various dopant concentration alongside the radius of tested nonzero dispersion-shifted fibers several multiple Brillouin scattering resonances were observed in the stimulated Brillouin spectra arose through backscattering on higher acoustic modes which propagated along the fiber axis. As a result of the varying acoustic velocities, the Brillouin resonance peaks featured different temperature coefficients which can be used to accomplish the simultaneous measurement of fiber strain and temperature. We presented our first measurement results for NZDS Fujikura and LEAF Corning fiber and discussed the superior sensory suitability of the former fiber types.
Autor*innen: | Aleksander Wosniok, Katerina Krebber |
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Dokumenttyp: | Beitrag zu einem Tagungsband |
Veröffentlichungsform: | Verlagsliteratur |
Sprache: | Englisch |
Titel des übergeordneten Werkes (Englisch): | IEEE Sensors 2011 conference (Proceedings) |
Jahr der Erstveröffentlichung: | 2011 |
Herausgeber (Institution): | Institute of Electrical and Electronics Engineers (IEEE) |
Erste Seite: | 1476 |
Letzte Seite: | 1479 |
Freie Schlagwörter: | BOFDA; BOTDA; Brillouin gain spectrum (BGS); Brillouin sensor; Fiber optic sensor; Nonzero dispersion-shifted fiber (NZDSF); Spatial distributed sensor |
Veranstaltung: | IEEE Sensors 2011 conference |
Veranstaltungsort: | Limerick, Ireland |
Beginndatum der Veranstaltung: | 28.10.2011 |
Enddatum der Veranstaltung: | 31.10.2011 |
ISBN: | 978-1-4244-9288-6 |
Verfügbarkeit des Dokuments: | Datei im Netzwerk der BAM verfügbar ("Closed Access") |
Datum der Freischaltung: | 19.02.2016 |
Referierte Publikation: | Ja |
Datum der Eintragung als referierte Publikation: | 24.11.2011 |