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Proceedings Paper

A Fiberoptic Temperature Sensor Using Wavelength-Dependent Detection
Author(s): D. A. Christensen; V. A. Vaguine
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Paper Abstract

A fiberoptic temperature probe based upon spectrophotometric detection of the change in wavelength of the optical absorption edge of a semiconductor sensor has been fabricated and tested. Broadband light is transmitted through the sensor--a small prism of GaAs--attached to the end of a two-fiber probe. The returned light is analyzed by a fast-scanning spectrometer consisting of a diffraction grating and a silicon photodiode array. For handling multiple probes, a rectangular detector array may be employed. The system has been operated over a temperature range from 20°C to 175°C.

Paper Details

Date Published: 23 March 1988
PDF: 5 pages
Proc. SPIE 0838, Fiber Optic and Laser Sensors V, (23 March 1988); doi: 10.1117/12.942515
Show Author Affiliations
D. A. Christensen, University of Utah (United States)
V. A. Vaguine, CV Technology Inc. (United States)


Published in SPIE Proceedings Vol. 0838:
Fiber Optic and Laser Sensors V
Ramon P. DePaula; Eric Udd, Editor(s)

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