Integrated optical temperature sensor
- 15 July 1982
- journal article
- conference paper
- Published by AIP Publishing in Applied Physics Letters
- Vol. 41 (2) , 134-136
- https://doi.org/10.1063/1.93428
Abstract
An integrated optical temperature sensor requiring no electrical connection and consisting of a parallel array of unequal arm‐length waveguide interferometers in LiNbO3 has been designed and the key components have been demonstrated. The optical transmission of each interferometer varies sinusoidally with temperature with a period inversely proportional to the path length difference between the two arms. This device has a projected range and resolution of ≳700 °C and 2×10−3 °C, respectively, and would be particularly useful in applications requiring immunity to electrical noise.Keywords
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