公开(公告)号：US20190323886A1

公开(公告)日：2019-10-24

申请号：US16450911

申请日：2019-06-24

Applicant: PsiQuantum Corp.

Inventor： Mark Thompson ,  Faraz Najafi

IPC: G01J1/44 ,  G01J1/04

Abstract: The various embodiments described herein include methods, devices, and systems for fabricating and operating superconducting photon detectors. In one aspect, a photon detector includes: (1) a first waveguide configured to guide photons from a photon source; (2) a second waveguide that is distinct and separate from the first waveguide and optically-coupled to the first waveguide; and (3) a superconducting component positioned adjacent to the second waveguide and configured to detect photons within the second waveguide.

公开(公告)号：US20190189816A1

公开(公告)日：2019-06-20

申请号：US16228441

申请日：2018-12-20

Applicant: PsiQuantum Corp.

Inventor： Faraz Najafi ,  Mark Thompson ,  Damien Bonneau ,  Joaquin Matres Abril

IPC: H01L31/0352 ,  H01L31/109 ,  H01L31/0232 ,  H01L31/18

CPC classification number: H01L31/035227 ,  G01J1/42 ,  G02B6/1226 ,  H01L31/02327 ,  H01L31/109 ,  H01L31/18 ,  H01L39/10 ,  H01L39/24 ,  H01L39/2406

Abstract: A device includes a first semiconductor layer; a portion of a second semiconductor layer disposed on the first semiconductor layer; and a third semiconductor layer including a first region disposed on the portion of the second semiconductor layer and a second region disposed on the first semiconductor layer. A thickness of the first region is less than a predefined thickness. The device also includes an etch stop layer disposed on the third semiconductor layer; a plurality of distinct portions of a fourth semiconductor layer disposed on the etch stop layer and exposing one or more distinct portions of the etch stop layer over the portion of the second semiconductor layer; and a plurality of distinct portions of a superconducting layer disposed on the plurality of distinct portions of the fourth semiconductor layer and the exposed one or more distinct portions of the etch stop layer.

公开(公告)号：US12264961B2

公开(公告)日：2025-04-01

申请号：US17940882

申请日：2022-09-08

Applicant: PsiQuantum Corp.

Inventor： Chia-Jung Chung ,  Faraz Najafi ,  George Kovall ,  Vitor R. Manfrinato ,  Vimal Kamineni ,  Mark Thompson ,  Syrus Ziai

IPC: G01J1/02 ,  G01J1/44 ,  H01B12/06

Abstract: A superconductor device includes a barrier layer over a substrate including silicon, the barrier layer including silicon and nitrogen, and a seed layer for a superconductor layer over the barrier layer, the seed layer including aluminum and nitrogen, and superconductor layer over the seed layer, the superconductor layer including a layer of a superconductor material, the barrier layer serving as an oxidation barrier between the layer superconductor material and the substrate. In some embodiments, the superconductor device includes a waveguide and a metal contact at a sufficient distance from the waveguide to prevent optical coupling between the metal contact and the waveguide.

公开(公告)号：US20240085631A1

公开(公告)日：2024-03-14

申请号：US18370785

申请日：2023-09-20

Applicant: PsiQuantum, Corp. ,  The University of Bristol

Inventor： Damien Bonneau ,  Mark Thompson

IPC: G02B6/28 ,  G02B6/26 ,  H01P9/00

CPC classification number: G02B6/2861 ,  G02B6/262 ,  H01P9/00

Abstract: An optical device includes a first multi-mode waveguide, a first optical coupler coupled to the first multi-mode waveguide, the first coupler being tapered and curved, and a first single-mode waveguide having a first end coupled to the first optical coupler. The optical device maybe used in an optical delay device. A method of propagating light in a first multi-mode waveguide toward a first optical coupler, propagating the light in the first optical coupler toward a first single-mode waveguide, the first optical coupler being tapered and curved, and propagating the light along the first single-mode waveguide is also disclosed.

公开(公告)号：US11874496B2

公开(公告)日：2024-01-16

申请号：US17987741

申请日：2022-11-15

Applicant: Psiquantum, Corp.

Inventor： Koustuban Ravi ,  Mark Thompson ,  Eric Dudley

IPC: G02B6/02 ,  G02B6/122 ,  G02B6/13 ,  G02B6/293 ,  G02B6/12

CPC classification number: G02B6/12007 ,  G02B6/1228 ,  G02B6/13 ,  G02B6/29355 ,  G02B2006/12061

Abstract: A photonic switch includes a first waveguide including a first region extending between a first coupler section and a second coupler section and a second region extending between the second coupler section and a third coupler section. The photonic switch also includes a second waveguide including a first portion extending between the first coupler section and the second coupler section, the first portion including at least two first compensation sections each having a different waveguide width, and a second portion extending between the second coupler section and the third coupler section, the second portion including at least two second compensation sections each having a different waveguide width. The photonic switch further includes at least one variable phase-shifter disposed in at least one of the first waveguide or the second waveguide.

公开(公告)号：US20210239518A1

公开(公告)日：2021-08-05

申请号：US17232086

申请日：2021-04-15

Applicant: PsiQuantum Corp,

Inventor： Chia-Jung Chung ,  Faraz Najafi ,  George Kovall ,  Vitor R. Manfrinato ,  Vimal Kamineni ,  Mark Thompson ,  Syrus Ziai

IPC: G01J1/02 ,  G01J1/44 ,  H01B12/06

Abstract: A superconductor device is manufactured by depositing a barrier layer over a substrate including silicon, the barrier layer including silicon and nitrogen; depositing a seed layer for a superconductor layer over the barrier layer, the seed layer including aluminum and nitrogen; depositing the superconductor layer over the seed layer, the superconductor layer including a layer of a superconductor material, the barrier layer serving as an oxidation barrier between the layer superconductor material and the substrate; and depositing a silicon cap layer over the superconductor layer. In some embodiments, the superconductor device includes a waveguide and a metal contact at a sufficient distance from the waveguide to prevent optical coupling between the metal contact and the waveguide.

公开(公告)号：US20190391416A1

公开(公告)日：2019-12-26

申请号：US16275173

申请日：2019-02-13

Applicant: PsiQuantum Corp.

Inventor： Damien Bonneau ,  Mark Thompson ,  Syrus Ziai

IPC: G02F1/017 ,  G02B6/122 ,  G02B6/42

Abstract: A method includes receiving input light having an input wavelength in a first optical resonator for causing resonance of the input light in the first optical resonator. The first optical resonator includes a non-linear optical medium. The method also includes converting at least a portion of the input light to a combination of first output light having a first output wavelength that is different from the input wavelength and second output light having a second output wavelength that is different from the input wavelength and the first output wavelength by passing the input light through the non-linear optical medium. The method further includes causing resonance of the first output light and the second output light in a second optical resonator. A portion of the first optical resonator is coupled to a portion of the second optical resonator.

公开(公告)号：US20250116817A1

公开(公告)日：2025-04-10

申请号：US18912289

申请日：2024-10-10

Applicant: PsiQuantum, Corp.

Inventor： Eric F. Dudley ,  Gabriel Joel Mendoza ,  Donggyu Benjamin Sohn ,  Gyeongho Son ,  Mark Thompson ,  Mihai Dorian Vidrighin ,  Sami Ibrahim Halimi

IPC: G02B6/30

Abstract: A photonic circuit can include a multi-waveguide edge coupler to receive light from an external light source. The edge coupler can include planar waveguides and one or more middle waveguides that separate the planar waveguides. The middle waveguides can couple light and have a tapered shape. The planar waveguides can include multiple thin plates that have sub-wavelength thickness, and can be implemented to shape a mode coupled between an external light source and the photonic circuit.

公开(公告)号：US20240402004A1

公开(公告)日：2024-12-05

申请号：US17940882

申请日：2022-09-08

Applicant: PsiQuantum Corp,

Inventor： Chia-Jung Chung ,  Faraz Najafi ,  George Kovall ,  Vitor R. Manfrinato ,  Vimal Kamineni ,  Mark Thompson ,  Syrus Ziai

IPC: G01J1/02 ,  G01J1/44 ,  H01B12/06

Abstract: A superconductor device includes a barrier layer over a substrate including silicon, the barrier layer including silicon and nitrogen, and a seed layer for a superconductor layer over the barrier layer, the seed layer including aluminum and nitrogen, and superconductor layer over the seed layer, the superconductor layer including a layer of a superconductor material, the barrier layer serving as an oxidation barrier between the layer superconductor material and the substrate. In some embodiments, the superconductor device includes a waveguide and a metal contact at a sufficient distance from the waveguide to prevent optical coupling between the metal contact and the waveguide.

公开(公告)号：US20240369408A1

公开(公告)日：2024-11-07

申请号：US18774410

申请日：2024-07-16

Applicant: PsiQuantum Corp.

Inventor： Mark Thompson ,  Faraz Najafi

IPC: G01J1/44 ,  G01J1/04 ,  G02B6/42 ,  H10N60/84

Abstract: An example multi-element photon detector includes a waveguide configured to guide a set of photons from a photon source, wherein the waveguide includes (i) a first coupling region, and (ii) a second coupling region. The example detector also includes a first photon detector coupled to the first coupling region and configured to detect individual photons from the first coupling region, the first photon detector arranged to have a first coupling efficiency with the waveguide. The example detector further includes a second photon detector coupled to the second coupling region and configured to detect individual photons from the second coupling region, the second photon detector arranged to have a second coupling efficiency with the waveguide, wherein the second coupling efficiency is greater than the first coupling efficiency such that the multi-element photon detector has a first probability of absorption across the first and second single photon detectors.