公开(公告)号：US20240361663A1

公开(公告)日：2024-10-31

申请号：US18763346

申请日：2024-07-03

Applicant: PsiQuantum Corp.

Inventor： Mihai Vidrighin ,  Nikhil Kumar ,  Gary Gibson

IPC: G02F1/313 ,  G02B6/12 ,  G02B6/35

CPC classification number: G02F1/3138 ,  G02B6/12007 ,  G02B6/354 ,  G02F1/3132 ,  G02B2006/12145 ,  G02B2006/12147

Abstract: A method includes propagating light in a first waveguide of a 1×2 optical switch. The first waveguide is adjacent to a second waveguide in a coupling region. The 1×2 optical switch comprising an input to receive the light and couple the light to the first waveguide. The 1×2 optical switch further comprising a first output to output light from the first waveguide and a second output to output the light from the second waveguide. The method further includes coupling the light to the first output and the second output based on absorption values of the second waveguide in the coupling region; adjusting absorption values of the second waveguide in the coupling region such that light is directed from the input to only the first output; and coupling light to only the first output based on the adjusted absorption values of the second waveguide in the coupling region.

公开(公告)号：US20250067936A1

公开(公告)日：2025-02-27

申请号：US18943669

申请日：2024-11-11

Applicant: PsiQuantum Corp.

Inventor： Hugo V. Cable ,  Damien Bonneau ,  Hsuan-Tung Peng ,  Bryan S. Park ,  Andrzej Perez Veitia ,  Sara Bartolucci ,  Eric Dudley ,  Mihai Vidrighin

IPC: G02B6/28

Abstract: An example photonic integrated circuit (PIC) includes a plurality of input ports to input light, such as a quantum state of light that comprises one or more photons, into the PIC. In addition, the PIC may include a waveguide network that includes a crossing network to combine light, and optical couplers that are coupled to the crossing network. The PIC can further include output ports to output the light.

公开(公告)号：US11782323B2

公开(公告)日：2023-10-10

申请号：US17728890

申请日：2022-04-25

Applicant: PSIQUANTUM CORP.

Inventor： Mihai Vidrighin ,  Nikhil Kumar ,  Gary Gibson

IPC: G02F1/313 ,  G02B6/35 ,  G02B6/12

CPC classification number: G02F1/3138 ,  G02B6/12007 ,  G02B6/354 ,  G02F1/3132 ,  G02B2006/12145 ,  G02B2006/12147

Abstract: An optical device includes a first waveguide that includes a plurality of first portions coupled with regions doped with first dopants, and a plurality of second portions coupled with regions doped with second dopants, distinct from the first dopants, the plurality of first portions being interleaved with the plurality of second portions. And the optical device includes a second waveguide located adjacent to the first waveguide for coupling light from the first waveguide to the second waveguide. The second waveguide includes a third portion coupled with a third region doped with the first dopants and a fourth portion coupled with a fourth region doped with the second dopants, wherein the first portion is located adjacent to the third portion and the second portion is located adjacent to the fourth portion.

公开(公告)号：US20250068026A1

公开(公告)日：2025-02-27

申请号：US18943551

申请日：2024-11-11

Applicant: PsiQuantum Corp.

Inventor： Hugo V. Cable ,  Damien Bonneau ,  Hsuan-Tung Peng ,  Bryan S. Park ,  Andrzej Perez Veitia ,  Sara Bartolucci ,  Eric Dudley ,  Chia-Ming Chang ,  Mihai Vidrighin

IPC: G02F1/21 ,  G02F1/01 ,  G02F1/225 ,  G02F1/313

Abstract: An example integrated generalized Mach-Zehnder Interferometer (GMZI) to process a quantum state of light is described. A quantum state of light comprising one or more photons can be received by a first coupler network in the GMZI. Using the first coupler network, the quantum state of light is distributed to one or more of a plurality of waveguide arms in the GMZI. The phase of the quantum state of light is adjusted using a plurality of phase shifters in the GMZI. The phase is adjusted for portions of the quantum state of light in one of the plurality of waveguide arms. The phase-adjusted quantum light is received by a second coupler network in the GMZI. Using the second coupler network, the quantum state of light is combined onto one or more outputs of the waveguide arms. The combined quantum light is outputted.

公开(公告)号：US20240302708A1

公开(公告)日：2024-09-12

申请号：US18378572

申请日：2023-10-10

Applicant: PsiQuantum Corp.

Inventor： Mihai Vidrighin ,  Nikhil Kumar ,  Gary Gibson

IPC: G02F1/313 ,  G02B6/12 ,  G02B6/35

CPC classification number: G02F1/3138 ,  G02B6/12007 ,  G02B6/354 ,  G02F1/3132 ,  G02B2006/12145 ,  G02B2006/12147

Abstract: An optical device includes a first waveguide that includes a plurality of first portions coupled with regions doped with first dopants, and a plurality of second portions coupled with regions doped with second dopants, distinct from the first dopants, the plurality of first portions being interleaved with the plurality of second portions. And the optical device includes a second waveguide located adjacent to the first waveguide for coupling light from the first waveguide to the second waveguide. The second waveguide includes a third portion coupled with a third region doped with the first dopants and a fourth portion coupled with a fourth region doped with the second dopants, wherein the first portion is located adjacent to the third portion and the second portion is located adjacent to the fourth portion.

公开(公告)号：US11314143B2

公开(公告)日：2022-04-26

申请号：US16941355

申请日：2020-07-28

Applicant: PSIQUANTUM CORP.

Inventor： Mihai Vidrighin ,  Nikhil Kumar ,  Gary Gibson

IPC: G02F1/313 ,  G02B6/35 ,  G02B6/12

Abstract: An optical switch device includes a first semiconductor structure configured to operate as a first waveguide and a second semiconductor structure configured to operate as a second waveguide. The second semiconductor structure is located above or below the first semiconductor structure and separated from the first semiconductor structure. The second semiconductor structure includes a portion of a first doped region doped with dopants of a first type and a portion of a second doped region doped with dopants of a second type that is different from the dopants of the first type.

公开(公告)号：US10747085B1

公开(公告)日：2020-08-18

申请号：US16503993

申请日：2019-07-05

Applicant: PsiQuantum Corp.

Inventor： Mihai Vidrighin ,  Nikhil Kumar ,  Gary Gibson

IPC: G02B6/35 ,  G02F1/313 ,  G02B6/12

Abstract: An optical switch device includes a first semiconductor structure configured to operate as a first waveguide and a second semiconductor structure configured to operate as a second waveguide. The second semiconductor structure is located above or below the first semiconductor structure and separated from the first semiconductor structure. The second semiconductor structure includes a first portion having a first width and a second portion having a width different from the first width and located on the first portion. The first portion is located between a first doped region and a second doped region.