The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Sep. 01, 2026

Filed:

Dec. 18, 2024
Applicants:

University of Southern California, Los Angeles, CA (US);

The Regents of the University of California, Oakland, CA (US);

Inventors:

John Bowers, Santa Barbara, CA (US);

Sujith Chandran, Los Angeles, CA (US);

Yeshaiahu Fainman, San Diego, CA (US);

Michael Haney, Los Angeles, CA (US);

Ajey P. Jacob, Watervliet, NY (US);

Sugeet Sunder, Los Angeles, CA (US);

Assignees:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03K 19/14 (2006.01); G02B 6/293 (2006.01); G02F 1/35 (2006.01);
U.S. Cl.
CPC ...
H03K 19/14 (2013.01); G02B 6/29338 (2013.01); G02F 1/3507 (2021.01); G02F 1/3509 (2021.01); G02F 1/3517 (2013.01);
Abstract

An optical circuit includes a resonator including a nonlinear optical material having intensity-dependent absorption, an input, and an output. The optical circuit includes an optical input path coupled to the input of the resonator and provides an optical logic input, an optical reference path coherently coupled to the resonator and configured to provide a first reference signal coupled to the optical input path and a second reference signal, and an optical output path coupled to the output of the resonator and configured to receive the second reference signal. The resonator receives a combined version of the optical logic input and the first reference signal, and provides an optical output signal based on the optical logic input, the first reference signal, and an intensity threshold of the nonlinear optical material. The optical output path provides an optical logic output corresponding to an output logic state based on the optical output signal and the second reference signal. The coherent coupling of the optical reference path to the resonator is configured to provide optical gain.


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