Traveling wave quantum well waveguide modulators using velocity

Details Traveling wave quantum well waveguide modulators using velocity Traveling wave quantum well waveguide modulators using velocity

1995-11-27

1997-07-08

Ullah, Akm E.

Optical waveguides

Temporal optical modulation within an optical waveguide

Electro-optic

G02F 1035

Patent

active

056470290

ABSTRACT:
An optoelectronic modulator modulates an optical signal in response to an electromagnetic signal. The optoelectronic modulator includes a waveguide for conveying the optical signal, where the waveguide has an associated width, core thickness, and waveguide-electrode separation, and includes a optical index of refraction with respect to the optical signal and a microwave index of refraction with respect to the electromagnetic signal; and where the microwave index of refraction substantially matches the optical index of refraction for velocity-matching the optical signal and the electromagnetic signal through the waveguide. The waveguide may be disposed on an n-type doped substrate, may include a quantum well region disposed on the substrate, and may have a predetermined width for providing the matching of refractive indices.

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