公开(公告)号：US12189270B2

公开(公告)日：2025-01-07

申请号：US18577702

申请日：2021-09-07

Applicant: HUAZHONG UNIVERSITY OF SCIENCE AND TECHNOLOGY

Inventor： Xiaomin Cheng ,  Zhuli He ,  Yunlai Zhu ,  Han Li ,  Xiangshui Miao

IPC: G02F3/02 ,  G11C13/00 ,  H03K19/173

Abstract: A Y-branch type phase-change all-optical Boolean logic device comprises a waveguide of a Y-branch structure and phase change function units covered over the waveguide. In the logic implementation method, a light pulse having a large power is employed to perform a write operation on the phase change function unit, so that the phase change function unit is heated to generate a crystallization or amorphization phase change, thereby causing a difference in optical properties under two states; the state of the phase change function unit is read by employing a light pulse having a small power, and the state of its phase change material is not changed. By defining input logic signals respectively and defining three operation steps, an operation mode reconfigurable logic can be implemented, and all 16 binary Boolean logic calculations are implemented in a simple structure by means of step-by-step operation.

公开(公告)号：US20240353591A1

公开(公告)日：2024-10-24

申请号：US18616393

申请日：2024-03-26

Applicant: Anhui University

Inventor： Wei CHEN ,  Weisen LI ,  Qingqing DENG ,  Lixia YANG

IPC: G02B1/00 ,  G02F3/02

CPC classification number: G02B1/005 ,  G02F3/024 ,  G02F2202/32

Abstract: The present disclosure relates to the technical field of terahertz-band optical bistable devices, and provides a graphene-based optical bistable device with a ternary photonic crystal structure. The optical bistable device includes a composite structure suitable for a terahertz band, where the composite structure is formed by a ternary photonic crystal structure, a defect layer C, and a graphene layer G through permutation and combination; and the ternary photonic crystal structure is formed by three alternately-arranged dielectric layers A, B, and P with different dielectric constants, two defect layers C are embedded in the ternary photonic crystal structure, and the graphene layer G is embedded between the two defect layers C. The composite structure is Air/(ABP)N1CGMC(ABP)N2/Air the dielectric layer A is made of a ZrO2 material, the dielectric layer B is made of a Si material, and the dielectric layer P is made of an anisotropic plasma material.

公开(公告)号：US12079687B2

公开(公告)日：2024-09-03

申请号：US17212678

申请日：2021-03-25

Applicant: Duke University

Inventor： Kenneth R. Brown ,  Pak Hong Leung ,  Shilin Huang ,  Bichen Zhang

IPC: G06N10/00 ,  B82Y10/00 ,  G02F3/02

CPC classification number: G06N10/00 ,  B82Y10/00 ,  G02F3/026

Abstract: A system includes a controller configured to reconstitute a continuous waveform to a discrete analogue version. The system includes a numerical optimizer configured to determine frequencies of a pulse sequence. The numerical optimizer uses radial motional mode frequencies and a desired gate time. The numerical optimizer generates the pulse sequence by closing phase-space trajectories, disentangling spins and motions, and constraining a Rabi frequency for motional sideband transitions. The system also includes a display configured to illustrate a discrete frequency modulation pulse sequence based on the determined frequencies.

公开(公告)号：US12051519B2

公开(公告)日：2024-07-30

申请号：US17583308

申请日：2022-01-25

Applicant: Quantinuum LLC

Inventor： Anthony Ransford ,  Sara Campbell ,  Bryce Bjork

IPC: G21K1/00 ,  G02F3/02 ,  G06N10/20 ,  G06N10/40

CPC classification number: G21K1/003 ,  G02F3/02 ,  G06N10/20 ,  G06N10/40

Abstract: Methods and controllers for reading a quantum state of an atomic object and/or qubit using coherent shelving are provided. A controller causes a first beam of a first wavelength and a second beam of a second wavelength to be incident on the qubit and causes a reading beam to be incident on the qubit. The first wavelength and the second wavelength are configured to couple a state of a qubit space of the qubit to a stable state. The stable state has a lifetime that is longer than a length of time required for performing a reading operation. The first beam and the second beam are generated by at least one manipulation source operated by at least one manipulation source driver of and/or in communication with and/or controlled by the controller.

公开(公告)号：US20240232604A1

公开(公告)日：2024-07-11

申请号：US18610442

申请日：2024-03-20

Applicant: Lightelligence PTE. Ltd.

Inventor： Yichen Shen ,  Huaiyu Meng ,  Li Jing ,  Rumen Dangovski ,  Peng Xie ,  Matthew Khoury ,  Cheng-Kuan Lu ,  Ronald Gagnon ,  Maurice Steinman ,  Jianhua Wu ,  Arash Hosseinzadeh

IPC: G06N3/067 ,  G02F1/00 ,  G02F1/225 ,  G02F3/02 ,  G06E1/04 ,  G06E3/00 ,  G06F17/14 ,  G06F17/16 ,  G06N3/08

CPC classification number: G06N3/0675 ,  G02F1/00 ,  G02F3/024 ,  G06E1/045 ,  G06E3/005 ,  G06E3/006 ,  G06E3/008 ,  G06F17/14 ,  G06F17/16 ,  G06N3/08 ,  G02F1/225

Abstract: Systems and methods that include: providing input information in an electronic format; converting at least a part of the electronic input information into an optical input vector; optically transforming the optical input vector into an optical output vector based on an optical matrix multiplication; converting the optical output vector into an electronic format; and electronically applying a non-linear transformation to the electronically converted optical output vector to provide output information in an electronic format.
In some examples, a set of multiple input values are encoded on respective optical signals carried by optical waveguides. For each of at least two subsets of one or more optical signals, a corresponding set of one or more copying modules splits the subset of one or more optical signals into two or more copies of the optical signals. For each of at least two copies of a first subset of one or more optical signals, a corresponding multiplication module multiplies the one or more optical signals of the first subset by one or more matrix element values using optical amplitude modulation. For results of two or more of the multiplication modules, a summation module produces an electrical signal that represents a sum of the results of the two or more of the multiplication modules.

公开(公告)号：US11650479B2

公开(公告)日：2023-05-16

申请号：US16617265

申请日：2018-05-26

Applicant: UNIVERSITEIT GENT ,  IMEC VZW

Inventor： Peter Bienstman ,  Andrew Katumba ,  Jelle Heyvaert ,  Joni Dambre

IPC: G02F3/02 ,  G06N3/067 ,  G06N20/00 ,  G06N5/04 ,  G02B6/125 ,  G02B6/122

CPC classification number: G02F3/028 ,  G02B6/125 ,  G02B6/1228 ,  G06N3/0675 ,  G06N5/04 ,  G06N20/00

Abstract: A passive photonics reservoir computing system comprises an optical waveguide based structure comprising a plurality of discrete nodes and a plurality of passive waveguide interconnections between the nodes for propagating the at least one photonic signal between the nodes, in which each discrete node is adapted for passively relaying the at least one photonic wave over the passive waveguide interconnections connected thereto, wherein the optical waveguide based structure comprises at least one multimode Y-junction configured for connecting three waveguides using a taper section wherein the taper section is not perfectly adiabatic. A training scheme uses a passive photonics computing system.

公开(公告)号：US20230045938A1

公开(公告)日：2023-02-16

申请号：US17736667

申请日：2022-05-04

Applicant: Massachusetts Institute of Technology

Inventor： Jacques Johannes CAROLAN ,  Mihika PRABHU ,  Scott A. SKIRLO ,  Yichen Shen ,  Marin SOLJACIC ,  DIRK ENGLUND ,  Nicholas C. HARRIS

IPC: G06E3/00 ,  G06N3/04 ,  G06N3/08 ,  G02F1/225 ,  G02F1/35 ,  G02F1/365 ,  G02F3/02 ,  G06N3/067

Abstract: An optical neural network is constructed based on photonic integrated circuits to perform neuromorphic computing. In the optical neural network, matrix multiplication is implemented using one or more optical interference units, which can apply an arbitrary weighting matrix multiplication to an array of input optical signals. Nonlinear activation is realized by an optical nonlinearity unit, which can be based on nonlinear optical effects, such as saturable absorption. These calculations are implemented optically, thereby resulting in high calculation speeds and low power consumption in the optical neural network.

公开(公告)号：US20220179284A1

公开(公告)日：2022-06-09

申请号：US17438600

申请日：2020-03-13

Applicant: The University of Chicago

Inventor： Alexandre Bourassa ,  Christopher P. Anderson ,  David D. Awschalom

IPC: G02F3/02 ,  H01L39/10 ,  H01L39/22

Abstract: This disclosure relates to optical devices for quantum information processing applications. In one example implementation, a semiconductor structure is provided. The semiconductor structure may be embedded with single defects that can be individually addressed. An electric bias and/or one or more optical excitations may be configured to control the single defects in the semiconductor structure to produce single photons for use in quantum information processing. The electric bias and optical excitations are selected and adjusted to control various carrier processes and to reduce environmental charge instability of the single defects to achieve optical emission with wide wavelength tunability and narrow spectral linewidth. Electrically controlled single photon source and other electro-optical devices may be achieved.

公开(公告)号：US20210304051A1

公开(公告)日：2021-09-30

申请号：US17212678

申请日：2021-03-25

Applicant: Duke University

Inventor： Kenneth R. BROWN ,  Pak Hong LEUNG ,  Shilin HUANG ,  Bichen ZHANG

IPC: G06N10/00 ,  G02F3/02 ,  B82Y10/00

Abstract: A system includes a controller configured to reconstitute a continuous waveform to a discrete analogue version. The system includes a numerical optimizer configured to determine frequencies of a pulse sequence. The numerical optimizer uses radial motional mode frequencies and a desired gate time. The numerical optimizer generates the pulse sequence by closing phase-space trajectories, disentangling spins and motions, and constraining a Rabi frequency for motional sideband transitions. The system also includes a display configured to illustrate a discrete frequency modulation pulse sequence based on the determined frequencies.

公开(公告)号：US10901297B2

公开(公告)日：2021-01-26

申请号：US16200241

申请日：2018-11-26

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Jongbae Kim

IPC: G02F1/03 ,  G02F1/07 ,  G02F3/02 ,  G02F1/377 ,  G02F1/39 ,  G02F2/00

Abstract: A resonant-structured optical transistor includes a nonlinear medium which generates a second harmonic wave through second-order nonlinear interaction with an incident pump wave, and generates an amplified signal wave and a converted wave having a difference frequency through second-order nonlinear interaction between the incident signal wave and the second harmonic wave, a first mirror which transmits, to the nonlinear medium, the pump wave or the signal wave, and reflects the second harmonic wave on one surface of the nonlinear medium, and a second mirror which transmits the pump wave, the signal wave, or the converted wave, and reflects the second harmonic wave on another surface of the nonlinear medium. The pump wave is incident to the nonlinear medium through the first mirror in a first operation mode, and the pump wave and the signal wave are incident to the nonlinear medium through the first mirror in a second operation mode.