23 March 1988 A Fiberoptic Temperature Sensor Using Wavelength-Dependent Detection
Author Affiliations +
Proceedings Volume 0838, Fiber Optic and Laser Sensors V; (1988) https://doi.org/10.1117/12.942515
Event: Cambridge Symposium on Fiber Optics and Integrated Optoelectronics, 1987, Cambridge, MA, United States
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.
© (1988) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
D. A. Christensen, D. A. Christensen, V. A. Vaguine, V. A. Vaguine, } "A Fiberoptic Temperature Sensor Using Wavelength-Dependent Detection", Proc. SPIE 0838, Fiber Optic and Laser Sensors V, (23 March 1988); doi: 10.1117/12.942515; https://doi.org/10.1117/12.942515

Back to Top