Optical Switches Based on Induced Optical Loss

    公开(公告)号:US20240302708A1

    公开(公告)日:2024-09-12

    申请号:US18378572

    申请日:2023-10-10

    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.

    Active photonic devices with enhanced pockels effect via isotope substitution

    公开(公告)号:US11994758B1

    公开(公告)日:2024-05-28

    申请号:US18142419

    申请日:2023-05-02

    Inventor: Gary Gibson

    CPC classification number: G02F1/035 G02F1/225 G02F1/212 G02F2202/105

    Abstract: An optical switch structure includes a substrate, a first electrical contact, and a first material having a first conductivity type electrically connected to the first electrical contact. The optical switch structure also includes a second material having a second conductivity type coupled to the first material, a second electrical contact electrically connected to the second material, and a waveguide structure disposed between the first electrical contact and the second electrical contact. The waveguide structure includes a waveguide core coupled to the substrate and including a core material characterized by a first index of refraction and a waveguide cladding at least partially surrounding the waveguide core and including a cladding material characterized by a second index of refraction less than the first index of refraction and an isotope-enhanced Pockels effect.

    Active photonic devices incorporating high dielectric constant materials

    公开(公告)号:US11624964B2

    公开(公告)日:2023-04-11

    申请号:US17326233

    申请日:2021-05-20

    Abstract: An optical switch structure includes a substrate, a first electrical contact, a first material having a first conductivity type electrically connected to the first electrical contact, a second material having a second conductivity type coupled to the first material, and a second electrical contact electrically connected to the second material. The optical switch structure also includes a waveguide structure disposed between the first electrical contact and the second electrical contact and comprising 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 and a waveguide cladding at least partially surrounding the waveguide core and including a second material characterized by a second index of refraction and a second electro-optic. The first index of refraction is greater than the second index of refraction the first electro-optic coefficient is less than the second electro-optic coefficient

    Optical switches based on induced optical loss

    公开(公告)号:US11314143B2

    公开(公告)日:2022-04-26

    申请号:US16941355

    申请日:2020-07-28

    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.

    Optical switches based on induced optical loss

    公开(公告)号:US10747085B1

    公开(公告)日:2020-08-18

    申请号:US16503993

    申请日:2019-07-05

    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.

    ACTIVE PHOTONIC DEVICES INCORPORATING HIGH DIELECTRIC CONSTANT MATERIALS

    公开(公告)号:US20250155770A1

    公开(公告)日:2025-05-15

    申请号:US18957616

    申请日:2024-11-22

    Abstract: An integrated optical system including a cryostat and a device disposed in the cryostat. The device including an electro-optic switch that includes at least one input port and a first beam splitter. The electro-optic switch including a Mach-Zehnder interferometer coupled to the first beam splitter, wherein the Mach-Zehnder interferometer includes a phase adjustment region including a waveguide core characterized by a first dielectric constant and a waveguide cladding at least partially surrounding the waveguide core and including a second material characterized by a second dielectric constant greater than the first dielectric constant. The electro-optic switch including a second beam splitter coupled to the Mach-Zehnder interferometer; and a set of output ports coupled to the second beam splitter.

    ACTIVE PHOTONIC DEVICES INCORPORATING HIGH DIELECTRIC CONSTANT MATERIALS

    公开(公告)号:US20240231175A9

    公开(公告)日:2024-07-11

    申请号:US18384802

    申请日:2023-10-27

    CPC classification number: G02F1/2257 G02F1/212 G02F2203/50

    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.

    Thermal measurements using superconducting materials

    公开(公告)号:US11783967B1

    公开(公告)日:2023-10-10

    申请号:US17061448

    申请日:2020-10-01

    CPC classification number: H01B12/06 H01B12/16

    Abstract: The present disclosure provides a circuit that includes a first component and a plurality of superconducting wires thermally-coupled to the first component. The superconducting wires of the plurality of superconducting wires are arranged and configured such that a threshold superconducting current for each superconducting wire is dependent on an amount of heat received from the first component. The circuit further includes a dielectric material separating the plurality of superconducting wires from one another. A superconducting wire nearest the first component among the plurality of superconducting wires is more than a phonon mean free path of the dielectric material from the first component. The circuit further includes control circuitry electrically-coupled to the plurality of superconducting wires and configured to provide current to each of the plurality of superconducting wires.

    Optical switches based on induced optical loss

    公开(公告)号:US11782323B2

    公开(公告)日:2023-10-10

    申请号:US17728890

    申请日:2022-04-25

    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.

    ACTIVE PHOTONIC DEVICES INCORPORATING HIGH DIELECTRIC CONSTANT MATERIALS

    公开(公告)号:US20230296957A1

    公开(公告)日:2023-09-21

    申请号:US18112415

    申请日:2023-02-21

    CPC classification number: G02F1/2257 G02F2203/50 G02F1/212

    Abstract: An optical switch structure includes a substrate, a first electrical contact, a first material having a first conductivity type electrically connected to the first electrical contact, a second material having a second conductivity type coupled to the first material, and a second electrical contact electrically connected to the second material. The optical switch structure also includes a waveguide structure disposed between the first electrical contact and the second electrical contact and comprising 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 and a waveguide cladding at least partially surrounding the waveguide core and including a second material characterized by a second index of refraction and a second electro-optic. The first index of refraction is greater than the second index of refraction the first electro-optic coefficient is less than the second electro-optic coefficient

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