Electro-optic waveguide device capable of suppressing bias...

Details Electro-optic waveguide device capable of suppressing bias... Electro-optic waveguide device capable of suppressing bias...

G - Physics

02

B

G02B 6/12 (2006.01) G02B 6/134 (2006.01)

Patent

CA 2521874

The present invention discloses an electro-optic waveguide device such as a modulator. The device has an electro-optic substrate having optical waveguides within the substrate at or near an upper surface. A buffer layer is formed on the top surface of the electro-optic substrate. A novel block layer is formed on the buffer layer surface, which can suppress or lessen an unwanted occurrence of chemical reactions at or near the surface of the buffer layer. A charge bleed off layer is formed on the block layer, which has a certain amount of electrical conductivity to bleed off any electrical charges generated on or in the electro-optic waveguide device. Electrodes are on the charge bleed off layer, which can provide electrical signals to the optical waveguides through the buffer layer, the block layer, and the charge bleed off layer.

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