Patent ID: 9541945
Date: 2017-01-10
CPC Classifications: G02F,G06E,G11C,H03K,H04B

Claim:
1. An optical AND gate comprising: an optical thyristor defined by an epitaxial layer structure that includes a bottom n-type cathode region, an intermediate p-type region formed above the bottom n-type cathode region, an intermediate n-type region formed above the intermediate p-type region, and a top p-type anode region formed above the intermediate n-type region, wherein the optical thyristor includes an anode terminal electrically coupled to the top p-type anode region, an n-type injector terminal electrically coupled to the intermediate n-type region, a p-type injector terminal electrically coupled to the intermediate p-type region, and a cathode terminal electrically coupled to the bottom n-type cathode region, wherein the optical thyristor is configured to receive first and second digital optical signal inputs; and a control circuitry operably coupled to the optical thyristor, the control circuitry comprising: