MAGNETIC-FIELD-TUNABLE TERAHERTZ OPTOELECTRONIC TRANSDUCER

    公开(公告)号:US20240345338A1

    公开(公告)日:2024-10-17

    申请号:US18298685

    申请日:2023-04-11

    IPC分类号: G02B6/42 H04B10/50

    摘要: Optoelectronic transducers that convert a femtosecond (fs)-timescale laser pulse into an a.c. electrical current pulse with an extremely high frequency and a high quality factor (Q) are provided. Both the frequency and amplitude of the a.c. electrical current pulse can be dynamically tuned by the application of a varying bias magnetic field. The optoelectronic transducers are based on a trilayered freestanding membrane that functions as both an acoustic cavity and a magnon cavity. The freestanding membrane includes an electrical conductor layer, a magnetic insulator layer, and a dielectric layer arranged in a vertical stack.

    WAVELENGTH SHIFTING FIBER AND A METHOD OF MAKING THE SAME

    公开(公告)号:US20240288626A1

    公开(公告)日:2024-08-29

    申请号:US18590405

    申请日:2024-02-28

    IPC分类号: G02B6/02 G01T1/20 G02B6/42

    摘要: A wavelength shifting fiber and method of making the same is disclosed. A wavelength shifting fiber can include a plastic core; and a coating surrounding the plastic core. The wavelength shifting fiber has an optical attenuation length of at least 500 cm. A method of making a wavelength shifting fiber can include storing a plastic core precursor and cladding melt preform in an environment containing an inert gas; and drawing the plastic core precursor and cladding melt preform to form a wavelength shifting fiber, wherein drawing is performed under tension of less than 77 g/mm2 and more than 40 g/mm2, and where the wavelength shifting fiber comprises an attenuation length of at least 500 cm.

    Photonic Semiconductor Device and Method of Manufacture

    公开(公告)号:US20240280772A1

    公开(公告)日:2024-08-22

    申请号:US18329464

    申请日:2023-06-05

    IPC分类号: G02B6/42

    摘要: A method includes forming a first redistribution structure on a first substrate; forming a waveguide structure on a second substrate, wherein the waveguide structure includes waveguides; bonding the waveguide structure to the redistribution structure using dielectric-to-dielectric bonding; removing the second substrate; forming a second redistribution structure on the waveguide structure; and connecting a photonic package to the second redistribution structure, wherein the photonic package is optically coupled to the waveguides.

    Polarization diverse receiver with delays

    公开(公告)号:US11988881B2

    公开(公告)日:2024-05-21

    申请号:US18165278

    申请日:2023-02-06

    申请人: Ayar Labs, Inc.

    IPC分类号: G02B6/293 G02B6/42 H04B10/60

    摘要: A first portion of incoming light and a second portion of incoming light travel in opposite directions within a first optical waveguide. A ring resonator in-couples the first portion of incoming light and the second portion of incoming light from the first optical waveguide, such that the first portion of incoming light and the second portion of incoming light travel in opposite directions within the ring resonator. A second optical waveguide is disposed to in-couple the first portion of incoming light and the second portion of incoming light couple from the ring resonator, such that the first portion of incoming light and the second portion of incoming light travel in opposite directions within the second optical waveguide away from the ring resonator. One or more photodetector(s) are optically connected to receive the first portion of incoming light and the second portion of incoming light from the second optical waveguide.

    Optical micro-electromechanical system with flip chip packaging

    公开(公告)号:US11982850B2

    公开(公告)日:2024-05-14

    申请号:US17950135

    申请日:2022-09-22

    IPC分类号: G02B6/122 G02B6/293 G02B6/42

    摘要: Several optical micro-electromechanical systems (OptoMEMS) are provided. One of the OptoMEMS comprises an OptoMEMS chip, and a photonic chip coupled to the OptoMEMS chip; wherein the OptoMEMS chip comprises a photonic cavity and a first platform on which the photonic cavity is fabricated, and the photonic chip comprises a waveguide and a second platform on which the waveguide is fabricated; wherein the photonic cavity comprises at least one dielectric beam, each of which further comprises at least one array of air holes; wherein the photonic cavity is at least partially made of a photonic crystal, and the lattice constant of the photonic crystal is reduced or increased gradually in a central region of the photonic cavity, allowing the light of a specific frequency to be trapped in the center region.

    Systems and methods for coupling light

    公开(公告)号:US11953737B2

    公开(公告)日:2024-04-09

    申请号:US17237285

    申请日:2021-04-22

    IPC分类号: G02B6/42

    CPC分类号: G02B6/4214 G02B6/4215

    摘要: An optical ferrule connector is provided. The optical ferrule connector includes a body including a beveled surface, a plurality of optical fibers embedded in the body, each of the plurality of optical fibers extending along a transmission direction and terminating in a fiber tip that is oriented coplanar to the beveled surface, and a plurality of optical elements, each optical element of the plurality of optical elements located at an associated fiber tip of an associated optical fiber, each optical element operable to manipulate or otherwise focus light into or out of a core of the associated optical fiber.