公开(公告)号：US10809592B2

公开(公告)日：2020-10-20

申请号：US16104424

申请日：2018-08-17

Applicant: Xanadu Quantum Technologies Inc.

Inventor： Avik Dutt ,  Zachary Vernon ,  Christian Weedbrook

IPC: G02F1/225 ,  G02F1/365 ,  G02F1/313 ,  G02F1/21

Abstract: An apparatus for producing squeezed light includes a substrate and a first beam splitter integrated onto the substrate. The apparatus also includes a Mach-Zehnder interferometer integrated onto the substrate. The Mach-Zehnder interferometer has a first input coupled to a first output of the first beam splitter and a first output coupled to a second output of the first beam splitter. The apparatus also includes a waveguide integrated onto the substrate and connecting a second input of the Mach-Zehnder interferometer to a second output of the Mach-Zehnder interferometer. The waveguide and the Mach-Zehnder interferometer form a ring resonator. The ring resonator can also be replaced by a waveguide section, including, for example, a spiral waveguide.

公开(公告)号：US12253684B2

公开(公告)日：2025-03-18

申请号：US18377939

申请日：2023-10-09

Applicant: Xanadu Quantum Technologies Inc.

Inventor： Krishnakumar Sabapathy ,  Haoyu Qi ,  Joshua Abe Izaac ,  Christian Weedbrook ,  Daiqin Su ,  Casey Myers

IPC: G02B27/09 ,  G02F1/01

Abstract: An apparatus includes an optical circuit having at least one reconfigurable beamsplitter and is configured to receive a plurality of input optical modes in a Gaussian state and generate a plurality of output optical modes. The apparatus also includes at least one detector optically coupled with the optical circuit and configured to perform a non-Gaussian measurement of a first output optical mode from the plurality of output optical modes. The non-Gaussian measurement of the first output optical mode is configured to cause a second output optical mode from the plurality of output optical modes to be in a first non-Gaussian state. The apparatus also includes a controller operatively coupled to the optical circuit and configured to change a setting of the at least one reconfigurable beamsplitter to cause the second output optical mode from the plurality of output optical modes to be in a second non-Gaussian state.

公开(公告)号：US11815696B1

公开(公告)日：2023-11-14

申请号：US16997601

申请日：2020-08-19

Applicant: Xanadu Quantum Technologies Inc.

Inventor： Krishnakumar Sabapathy ,  Haoyu Qi ,  Joshua Abe Izaac ,  Christian Weedbrook ,  Daiqin Su ,  Casey Myers

IPC: G02B27/09 ,  G02F1/01

CPC classification number: G02B27/0927 ,  G02F1/0121 ,  G02F2201/58

Abstract: An apparatus includes an optical circuit having at least one reconfigurable beamsplitter and is configured to receive a plurality of input optical modes in a Gaussian state and generate a plurality of output optical modes. The apparatus also includes at least one detector optically coupled with the optical circuit and configured to perform a non-Gaussian measurement of a first output optical mode from the plurality of output optical modes. The non-Gaussian measurement of the first output optical mode is configured to cause a second output optical mode from the plurality of output optical modes to be in a first non-Gaussian state. The apparatus also includes a controller operatively coupled to the optical circuit and configured to change a setting of the at least one reconfigurable beamsplitter to cause the second output optical mode from the plurality of output optical modes to be in a second non-Gaussian state.