Abstract
An experimental determination of the thermo-optic effect of titanium dioxide is described in which the test element is a thin film deposited onto the end face of an optical fibre. The film acts as an etalon. The reflectivity of titanium dioxide films was measured as a function of temperature experimentally over the range 20°C to 500°C, and modelled theoretically to yield a value of the thermo-optic coefficient of -1.49 × 10-4 K-1. The use of the data in the design of a thin-film optical fibre temperature sensor is described. © 1997 Elsevier Science Ltd.
Original language | English |
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Pages (from-to) | 121-124 |
Number of pages | 4 |
Journal | Optics and Laser Technology |
Volume | 29 |
Issue number | 3 |
DOIs | |
Publication status | Published - Apr 1997 |
Keywords
- Fibre-optics
- Sensors
- Titanium