Cross-talk fiber-optic temperature sensor
- 1 February 1983
- journal article
- Published by Optica Publishing Group in Applied Optics
- Vol. 22 (3) , 464-477
- https://doi.org/10.1364/ao.22.000464
Abstract
The temperature sensitivity of cross talk between closely spaced cores in a common cladding is calculated and compared with measurements. A periodic variation in core contrast is observed when one core is illuminated and the temperature is changed. The variation in light distribution, which is ascribable to a change in coupling between the cores, agrees with theoretical predictions. It is shown that cross talk can be made to be a sensitive, predictable function of temperature or by proper selection of materials, wavelength, and fiber geometry essentially temperature independent.Keywords
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