APPARATUS AND METHOD FOR A SILICON MODULATOR WITH STRONG GRADIENT SLAB DOPING

    公开(公告)号:US20220026747A1

    公开(公告)日:2022-01-27

    申请号:US16937334

    申请日:2020-07-23

    Inventor: Long Chen

    Abstract: Methods of fabricating electro-optical modulators and the resulting electro-optical modulators are described herein. In some embodiments, a method comprises defining a waveguide having a core region, implanting dopants into a contact region of the waveguide, and diffusing the dopants laterally toward the core region. In some embodiments, a method comprises implanting n-type and p-type dopants into respective first and second contact regions of the optical waveguide and annealing the optical waveguide to induce lateral diffusion of the n-type and p-type dopants toward a center of the optical waveguide. In some embodiments, an electro-optical modulator comprises a waveguide comprising a contact region and a core region, and the waveguide has a dopant concentration that decreases from the contact region to the core region according to a super-linear curve. Methods and resulting structures described herein provide desirable electrical resistance and low overlap between dopants and optical signals.

    Conductive connector
    14.
    发明授权

    公开(公告)号:US11050175B1

    公开(公告)日:2021-06-29

    申请号:US16883270

    申请日:2020-05-26

    Inventor: David Mullert

    Abstract: A system and apparatus for increasing connectivity of a circuit board comprising a connector, wherein the connector has a horizontal body and a hollow cylindrical portion extruding vertically from the body; wherein the cylindrical portion is made up of a set of pieces; wherein at least a piece of the set of pieces is arranged to expand horizontally, upon insertion of a phalanx head in a vertical manner. A method to increase current connectivity comprising screwing a fastener into threads of a connector through a hollow cylindrical portion of the connector; wherein the hollow cylindrical portion of the connector is made up of a set of pieces; wherein the screwing causes a phalanx head to contact the cylindrical portion expanding at least one piece of the set of pieces in a horizontal manner in relation to the fastener.

    Optical grooming interconnection network

    公开(公告)号:US10819438B1

    公开(公告)日:2020-10-27

    申请号:US16364909

    申请日:2019-03-26

    Abstract: A system, apparatus, and method for an optical grooming network; wherein a set of switches form an optical grooming interconnection system where each switch is communicatively coupled to each other switch; a set of clients; where each switch of the set of switches is communicatively coupled to a client of the clients; wherein each client receiver is enabled to communicate through the set of switches to any client or modem; and a set of coherent optical modems; wherein each coherent optical modem is communicatively coupled to a switch of the set of switches; wherein each client of the clients is able to communicate through the set of switches to every coherent optical modem of the set of coherent optical modems, and each coherent optical modem in the set of coherent optical modems can communicate to every coherent optical modem of the set of coherent optical modems.

    MODULATION SYSTEMS AND METHODS IN OPTICAL TRANSCEIVERS

    公开(公告)号:US20190363800A1

    公开(公告)日:2019-11-28

    申请号:US16533046

    申请日:2019-08-06

    Abstract: Quadrature amplitude modulation (QAM) techniques for use in optical systems are described. An optical transceiver may include a modulator configured to modulate data according to a scaled set-partitioning QAM (SP-QAM) scheme. The modulator may be configured to receive a plurality of bits, associate the plurality of bits with a plurality of symbols according to the scaled (SP-QAM) scheme; and transmit the plurality of symbols over an optical channel. A demodulator in an optical receiver may receive the plurality of symbols transmitted over the optical channel and associate the received symbols with a plurality of bits according to the scaled (SP-QAM) scheme; and provide the plurality of bits to a forward error correction decoder.

    WAVELENGTH DIVISION MULTIPLEXER
    19.
    发明申请

    公开(公告)号:US20190293881A1

    公开(公告)日:2019-09-26

    申请号:US16441775

    申请日:2019-06-14

    Abstract: An integrated wavelength division multiplexer is described. The integrated wavelength division multiplexer may include a first waveguide core defining a first propagation axis and configured to guide light of a first wavelength and light of a second wavelength, and a second waveguide core defining a second propagation axis and configured to guide the light of the second wavelength. A first portion of the second propagation axis for which the first waveguide core and second waveguide core may be overlapping is oriented at a non-zero angle relative to the first propagation axis. The first waveguide core and second waveguide core may be configured relative to each other to adiabatically couple the light of the second wavelength between the first and second waveguide cores.

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