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Titolo:
REFLECTION INTENSITY OPTICAL-FIBER SENSORS FOR THE MIDINFRARED
Autore:
TUGENDHAFT I; BORNSTEIN A; WEISSMAN Y; HARDY A;
Indirizzi:
SOREQ NUCL RES CTR,ELECTROOPT DIV IL-81800 YAVNE ISRAEL TEL AVIV UNIV,FAC ENGN,DEPT PHYS ELECT IL-69978 RAMAT AVIV ISRAEL
Titolo Testata:
Applied optics
fascicolo: 6, volume: 36, anno: 1997,
pagine: 1297 - 1302
SICI:
0003-6935(1997)36:6<1297:RIOSFT>2.0.ZU;2-1
Fonte:
ISI
Lingua:
ENG
Soggetto:
SPECTROSCOPY; COUPLERS;
Keywords:
REFLECTION OPTICAL FIBER SENSORS; OPTICAL FIBER COUPLER; CHALCOGENIDE GLASS FIBERS;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
22
Recensione:
Indirizzi per estratti:
Citazione:
I. Tugendhaft et al., "REFLECTION INTENSITY OPTICAL-FIBER SENSORS FOR THE MIDINFRARED", Applied optics, 36(6), 1997, pp. 1297-1302

Abstract

Two kinds of reflection intensity sensor made of chalcogenide glass fiber for the mid-IR region are demonstrated. One is a double-fiber reflection Sensor based on two tied fibers with a gold-coated hollow metal waveguide connected to the far end of the fibers. The other is a single-fiber reflection sensor based on contact couplers. These reflectance sensors were coupled to a Fourier-transform IR spectrometer by a unique accessory based on nonimaging concentrators. This setup was builtto measure absorption spectra of a polymer coating of an aluminum canand a sheet of drafting paper. A theoretical model treating the ratiobetween the signal from the target and the background is introduced. This model was helpful in deriving the sensitivity characteristics of the sensors from experimental absorption peak heights. Hence, the absorption peaks heights that we obtained using a single-fiber reflection sensor with a symmetric coupler were nearly 50% relative to those obtained with a double-fiber reflection sensor. (C) 1997 Optical Society of America.

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Documento generato il 28/11/20 alle ore 04:12:16