Athermal silica-based arrayed-waveguide gratingmultiplexer using bimetal plate temperature compensator
- 12 October 2000
- journal article
- Published by Institution of Engineering and Technology (IET) in Electronics Letters
- Vol. 36 (21) , 1800-1801
- https://doi.org/10.1049/el:20001267
Abstract
A simple and successful technique for realising an athermal silica-based arrayed-waveguide grating (AWG) is described. By applying strain to the waveguide using a bimetal plate, the centre wavelength shift caused by the thermo-optic effect is cancelled out by the strain-optic effect. The wavelength shift is smaller than 0.05 nm between 25 and 77°C for an AWG chip attached to a bimetal plate.Keywords
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