G - Physics – 02 – B
Patent
G - Physics
02
B
G02B 6/10 (2006.01) G02B 6/12 (2006.01) G02F 1/025 (2006.01)
Patent
CA 2361683
An optical device, such as an electro-absorption modulator, has a waveguide formed onto a base. Electrodes adjacent the waveguide are used to selectively apply an electric field to the device in order to control the passage of light through the device. To prevent overheating of the device in a region near the point of optical entry, the electrode, which acts as a thermal conduit to dissipate heat from the waveguide is extended over the region. To prevent undesirable electrical contact between the electrode and the region, the normally electrically conducting contact layer between the electrode and the waveguide is removed in that region and replaced by an isolation dielectric.
Boudreau Marcel
Foster Robert
Moore Ronald S.
Prosyk Kelvin
Bookham Technology Plc
Mbm & Co.
Nortel Networks Limited
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