US 8,947,764 B1 · High-speed photonic modulator designs

Abstract

An optical device includes a microdisk optical resonator element. The microdisk resonator element is formed on a substrate and has upper and lower portions respectively distal and proximal the substrate. An arcuate semiconductor contact region partially surrounds the microdisk resonator element. A first modulator electrode is centrally formed on the upper portion of the microdisk resonator element, and a second modulator electrode is formed on the arcuate contact region. A laminar semiconductor region smaller in thickness than the microdisk resonator element separates the arcuate contact region from the microdisk resonator element and is formed on the substrate so as to electrically connect the arcuate contact region to the lower portion of the microdisk resonator element.

Claims6

Dependent claims

An optical device, comprising:

a microdisk resonator element containing a semiconductor junction;
an arcuate semiconductor region displaced from and partially surrounding the resonator element;
a central modulator electrode positioned on a central portion of the resonator element for making contact with one side of the semiconductor junction;
a peripheral modulator electrode positioned on the arcuate semiconductor region for making contact with the other side of the semiconductor junction;
and
a laminar semiconductor pedestal smaller in thickness than the resonator element and extensive between at least a portion of the resonator element and the arcuate contact region so as to form at least part of an electrical path between the arcuate contact region and its respective side of the semiconductor junction.

3 more elements

Dependencies are inferred from the claim text.

High-speed photonic modulator designs

Life of this patent

High-speed photonic modulator designs

Life of this patent

Abstract

Claims6