Electro-optic modulators with internal impedance matching

Details Electro-optic modulators with internal impedance matching Electro-optic modulators with internal impedance matching

2005-06-21

2005-06-21

Bovernick, Rodney (Department: 2874)

Optical waveguides

Temporal optical modulation within an optical waveguide

Electro-optic

C385S001000, C385S002000, C385S008000

Reexamination Certificate

active

06909817

ABSTRACT:
A resonant optical modulator includes an electro-optical substrate, an optical waveguide formed in the substrate and having a variable index of refraction, and an active modulator electrode formed on the substrate in relation to the waveguide to effect electro-optical variation of the index of refraction upon application to the electrode of a modulating signal. An interface port formed on the substrate provides the modulating signal to the electrode from a signal source and has an impedance. An electrical structure, formed on the substrate and coupled to the interface port and the electrode, makes an impedance of the optical modulator substantially equal to the impedance of the signal source. The electrical structure includes a delay line and a stub formed on the substrate.

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