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：US20190324213A1

公开(公告)日：2019-10-24

申请号：US16455534

申请日：2019-06-27

Applicant: PsiQuantum Corp.

Inventor： Naomi NICKERSON ,  Damien BONNEAU ,  Terence RUDOLPH

IPC: G02B6/35 ,  H04B10/70

Abstract: A device (e.g., a photonic multiplexer) is provided that includes a plurality of first switches. Each first switch in the plurality of first switches includes a plurality of first channels. Each first switch is configured to shift photons in the plurality of first channels by zero or more channels, based on first configuration information provided to the first switch. The device further includes a plurality of second switches. Each second switch includes a plurality of second channels. Each second channel is coupled with a respective first channel from a distinct first switch of the plurality of first switches. Each second switch is configured to shift photons in the plurality of second channels by zero or more channels, based on second configuration information provided to the second switch.

公开(公告)号：US10374611B2

公开(公告)日：2019-08-06

申请号：US16151190

申请日：2018-10-03

Applicant: PSIQUANTUM Corp.

Inventor： Faraz Najafi

IPC: H03K19/195 ,  H03K19/23 ,  H01L31/02

Abstract: The various embodiments described herein include methods, devices, and systems for implementing logic gates. In one aspect, a circuit includes: (1) a superconducting component having a plurality of alternating narrow and wide portions; (2) a plurality of heat sources, each heat source of the plurality of heat sources coupled to a corresponding narrow portion of the plurality of alternating narrow and wide portions and configured to selectively provide heat to the corresponding narrow portion; (3) a bias current source coupled to each narrow portion of the plurality of alternating narrow and wide portions; and (4) an output node adapted to output a respective current while the plurality of superconducting components is in the non-superconducting state.

公开(公告)号：US20190109594A1

公开(公告)日：2019-04-11

申请号：US16151190

申请日：2018-10-03

Applicant: PSIQUANTUM Corp.

Inventor： Faraz Najafi

IPC: H03K19/195 ,  H01L31/02 ,  H03K19/23

CPC classification number: H03K19/1958 ,  H01L23/552 ,  H01L27/18 ,  H01L31/02027 ,  H01L39/16 ,  H01L39/18 ,  H01L39/225 ,  H03K19/195 ,  H03K19/1954 ,  H03K19/20 ,  H03K19/23

Abstract: The various embodiments described herein include methods, devices, and systems for implementing logic gates. In one aspect, a circuit includes: (1) a superconducting component having a plurality of alternating narrow and wide portions; (2) a plurality of heat sources, each heat source of the plurality of heat sources coupled to a corresponding narrow portion of the plurality of alternating narrow and wide portions and configured to selectively provide heat to the corresponding narrow portion; (3) a bias current source coupled to each narrow portion of the plurality of alternating narrow and wide portions; and (4) an output node adapted to output a respective current while the plurality of superconducting components is in the non-superconducting state.

公开(公告)号：US10197440B2

公开(公告)日：2019-02-05

申请号：US16012520

申请日：2018-06-19

Applicant: PsiQuantum Corp

Inventor： Faraz Najafi

IPC: G01J1/42 ,  H01L39/22 ,  H01L31/113

Abstract: The various embodiments described herein include methods, devices, and systems for fabricating and operating niobium-germanium-based superconducting devices. In one aspect, a device includes a superconducting nanowire composed of niobium-germanium, a protective layer configured to inhibit oxidation of the superconducting nanowire, and a current source configured to supply a current to the superconducting nanowire. In another aspect, a method of fabrication includes: (1) depositing a layer of niobium-germanium on a substrate; (2) removing one or more portions of the layer of niobium-germanium to define one or more nanowires; and (3) depositing a protective layer over the one or more nanowires, the protective layer adapted to inhibit oxidation of niobium-germanium in the one or more nanowires.

公开(公告)号：US12292669B2

公开(公告)日：2025-05-06

申请号：US18204185

申请日：2023-05-31

Applicant: Psiquantum, Corp.

Inventor： Mihai Dorian Vidrighin ,  Damien Bonneau ,  Alessandro Farsi ,  Mark G. Thompson

IPC: G02F1/365 ,  G02F1/35 ,  H04B10/70 ,  G02B6/293 ,  G02F1/39

Abstract: Techniques disclosed herein relate to photon sources with high spectral purity and high brightness. In one embodiment, a photon-pair source includes a pump waveguide, a first resonator coupled to the pump waveguide to couple pump photons from the pump waveguide into the first resonator, a second resonator coupled to the first resonator, and an output waveguide coupled to the second resonator. The second resonator is configured to convert the pump photons into photon pairs. The second resonator and the first resonator are configured to cause a coupling-induced resonance splitting in the second resonator or the first resonator. The second resonator and the output waveguide are configured to couple the photon pairs from the second resonator into the output waveguide. In some embodiments, the photo-pair source includes one or more tuners for tuning at least one of the first resonator or the second resonator.

公开(公告)号：US20250087959A1

公开(公告)日：2025-03-13

申请号：US18957743

申请日：2024-11-23

Applicant: Psiquantum, Corp.

Inventor： Eric Dudley ,  Yong Liang ,  Faraz Najafi ,  Vimal Kamineni ,  Ann Melnichuk

IPC: H01S3/067 ,  G02B6/12 ,  G02B6/122

Abstract: A device includes a substrate and a dielectric layer on the substrate. The device also includes a light sensitive component in the dielectric layer and a trench having a first portion disposed in the substrate and a second portion disposed in the dielectric layer. The trench is adjacent the light sensitive component and includes an adhesion layer in the first portion and the second portion, an optical isolation layer on the adhesion layer, and a first fill material in the first portion and a second fill material in the second portion. The first fill material is characterized by a first coefficient of thermal expansion (CTE) that matches a CTE of the substrate and the second fill material is characterized by a second CTE that matches a CTE of the dielectric layer.

公开(公告)号：US12249641B1

公开(公告)日：2025-03-11

申请号：US18383009

申请日：2023-10-23

Applicant: PsiQuantum Corp

Inventor： Faraz Najafi ,  Qiaodan Jin Stone ,  Andrea Bahgat Shehata

IPC: H01L29/66 ,  H01L23/34 ,  H01L29/861 ,  H01L29/868 ,  H01L31/09 ,  H01L31/107 ,  H10N60/30 ,  H10N69/00

Abstract: The various embodiments described herein include methods, devices, and systems for fabricating and operating diodes. In one aspect, an electrical circuit includes: (1) a diode component having a particular energy band gap; (2) an electrical source electrically coupled to the diode component and configured to bias the diode component in a particular state; and (3) a heating component thermally coupled to a junction of the diode component and configured to selectively supply heat corresponding to the particular energy band gap.

公开(公告)号：US12242165B2

公开(公告)日：2025-03-04

申请号：US18384802

申请日：2023-10-27

Applicant: Psiquantum, Corp.

Inventor： Chia-Ming Chang ,  Hung-Hsi Lin ,  Gary Gibson

IPC: G02F1/225 ,  G02F1/21

Abstract: A waveguide structure includes a substrate and a waveguide core coupled to the substrate and including a first material characterized by a first index of refraction and a first electro-optic coefficient. The waveguide structure also includes a first cladding layer at least partially surrounding the waveguide core and including a second material characterized by a second index of refraction less than the first index of refraction and a second electro-optic coefficient greater than the first electro-optic coefficient. The second cladding layer is coupled to the first cladding layer.

公开(公告)号：US12242123B1

公开(公告)日：2025-03-04

申请号：US18392124

申请日：2023-12-21

Applicant: Psiquantum, Corp.

Inventor： Gabriel J. Mendoza ,  Matteo Staffaroni ,  Albert Wang ,  John Eugene Berg ,  Ramakanth Alapati

IPC: G02B6/43 ,  G02B6/12 ,  G06N10/00 ,  H01L23/00 ,  H01L25/065

Abstract: A device includes a die stack including a first die including a quantum circuit and a second die including an electronic circuit. The second die and the first die face each other. A coupler is bonded to a first surface of the first die, an optical fiber is coupled to the coupler for coupling light from the optical fiber to the quantum circuit.