Three-dimensional athermal waveguides fortemperature independent lightwave devices
- 21 July 1994
- journal article
- Published by Institution of Engineering and Technology (IET) in Electronics Letters
- Vol. 30 (15) , 1223-1224
- https://doi.org/10.1049/el:19940836
Abstract
To realise a temperature independent narrowband optical filter, a three-demensional athermal waveguide for which optical path length is independent of temperature is developed. The temperature coefficient of the optical path length is successfully decreased to –2% of that of a conventional waveguide.Keywords
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