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:
Oct. 04, 2022

Filed:

May. 10, 2019
Applicant:

The Board of Trustees of the Leland Stanford Junior University, Stanford, CA (US);

Inventors:

Tyler William Hughes, Stanford, CA (US);

Momchil Minkov, Stanford, CA (US);

Ian Williamson, Stanford, CA (US);

Shanhui Fan, Stanford, CA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02F 1/35 (2006.01); G06N 3/067 (2006.01); G02F 1/365 (2006.01); G06N 3/04 (2006.01);
U.S. Cl.
CPC ...
G02F 1/3517 (2013.01); G02F 1/365 (2013.01); G06N 3/0481 (2013.01); G06N 3/0675 (2013.01);
Abstract

Systems and methods for activation in an optical circuit in accordance with embodiments of the invention are illustrated. One embodiment includes an optical activation circuit, wherein the circuit comprises a directional coupler, an optical-to-electrical conversion circuit, a time delay element, a nonlinear signal conditioner, and a phase shifter. The directional coupler receives an optical input and provides a first portion to the optical-to-electrical conversion circuit and a second portion to the time delay element, the time delay element provides a delayed signal to the phase shifter, and the optical-to-electrical conversion circuit converts an optical signal from the directional coupler to an electrical signal used to activate the phase shifter to shift the phase of the delayed signal.


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