Optical modulator and optical modulator array

Details Optical modulator and optical modulator array Optical modulator and optical modulator array

2006-12-26

2006-12-26

Healy, Brian (Department: 2883)

Optical waveguides

With optical coupler

Particular coupling function

C385S003000, C385S040000, C385S043000, C385S050000, C385S129000, C385S132000

Reexamination Certificate

active

07155088

ABSTRACT:
An optical modulator is provided with an optical waveguide including an input-side single-mode waveguide for propagating inputted light at single mode, a multi-mode waveguide for propagating the light propagated from the input-side single-mode waveguide at plural guided modes, and an output-side single-mode waveguide for propagating the light propagated from the multi-mode waveguide at single mode to output the light. A lower electrode layer is disposed below the multi-mode waveguide, and an upper electrode is disposed above the multi-mode waveguide. The upper electrode cooperates with the lower electrode layer to apply an electric field to the multi-mode waveguide. A phase of each of the guided modes propagating through the multi-mode waveguide is modulated by applying an electric field to the multi-mode waveguide, and intensity of the light outputted from the output-side single-mode waveguide is modulated by an interference of the phase-modulated guided modes.

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