Communication between data centers using a multi-core fiber

    公开(公告)号:US11303379B1

    公开(公告)日:2022-04-12

    申请号:US17160422

    申请日:2021-01-28

    Abstract: A system includes a pair of network devices, a universal multi-core fiber (UMCF) interconnect, and a pair of wavelength-division multiplexing (WDM) devices. Each network device includes (i) first optical communication devices configured to communicate first optical signals having a first carrier wavelength and (ii) second optical communication devices configured to communicate second optical signals having a second carrier wavelength. The universal multi-core fiber (UMCF) interconnect includes multiple cores that are configured to convey the first optical signals and the second optical signals between the network devices, using single-mode propagation for the first optical signals and multi-mode propagation for the second optical signals. Each WDM device is connected between a respective network device and the UMCF interconnect and configured to couple the first and second optical communication devices of the respective network device to the cores in accordance with a defined channel assignment.

    OPTOELECTRONIC COMPONENT AND METHOD OF MANUFACTURING AN OPTOELECTRONIC COMPONENT

    公开(公告)号:US20230305250A1

    公开(公告)日:2023-09-28

    申请号:US17660348

    申请日:2022-04-22

    CPC classification number: G02B6/43 G02B6/428

    Abstract: An optoelectronic component may include a substrate, an electronic integrated circuit supported by the substrate, and a photonic integrated circuit supported by the substrate. The optoelectronic component may include a plurality of substrate interconnect connectors disposed on the substrate, a plurality of electronic integrated circuit interconnect connectors disposed on the electronic integrated circuit, and a plurality of photonic integrated circuit interconnect connectors disposed on the photonic integrated circuit. The optoelectronic component may include a first plurality of cable connectors, each cable connector connected to the substrate, the electronic integrated circuit, and the photonic integrated circuit via respective interconnect connectors. The first plurality of cable connectors may be configured to facilitate electrical communication between the substrate, the electronic integrated circuit, and the photonic integrated circuit. The first plurality of cable connectors may define a first layout, and an overall connectivity of the optoelectronic component may correspond to the first layout.

    Apparatuses and systems for improved copper connections

    公开(公告)号:US10855331B1

    公开(公告)日:2020-12-01

    申请号:US16685400

    申请日:2019-11-15

    Abstract: Apparatuses, systems, and associated methods are described that provide signal transmission over copper media. An example module includes a number of electrical signal generators that each generate an electrical signal, and a signal modulation system that receives the electrical signals generated by the electrical signal generators. The signal modulation system further modulates each of the electrical signals such that each modulated electrical signal is distinguishable from the other modulated electrical signals. The module further includes an active copper multiplexer in electrical communication with the electrical signal generators that receives the modulated electrical signals from the signal modulation system. The active copper multiplexer further combines the multiple modulated signals into a single combined electrical signal and transmits the single combined electrical signal through a single copper cable.

    Process for localized repair of graphene-coated lamination stacks and printed circuit boards

    公开(公告)号:US12289839B2

    公开(公告)日:2025-04-29

    申请号:US17305233

    申请日:2021-07-01

    Abstract: Processes for localized lasering of a lamination stack and graphene-coated printed circuit board (PCB) are disclosed. An example PCB may include a lamination stack, post-lamination, that may further include a core, an adhesive layer, and at least one graphene-metal structure. A top layer of graphene of the graphene-metal structure may have never been grown before the lamination process or may have been removed post-lamination such that a portion of the top layer of graphene is missing. The localized lasering process described herein may grow (for the first time) or re-grow the graphene layer of the exposed portion of the metal layer without adverse effects to the rest of the lamination stack or PCB and while promoting a uniform layer of graphene on the top surface. A process of growing graphene through application of molecular layer and a self-assembled monolayer (SAM), are also described herein.

    Generation of an optical PAM-4 signal in a Mach-Zehnder modulator

    公开(公告)号:US11630369B2

    公开(公告)日:2023-04-18

    申请号:US17405101

    申请日:2021-08-18

    Abstract: Embodiments are disclosed for generating an optical Pulse Amplitude Modulation 4-level (PAM-4) signal from bandwidth-limited duobinary electrical signals in a Mach-Zehnder modulator. An example system includes an MZM structure that comprises a first waveguide interferometer arm structure associated with a first semiconductor device and a second waveguide interferometer arm structure associated with a second semiconductor device. A polybinary electrical signal is applied to or between the first semiconductor device and the second semiconductor device to convert an input optical signal provided to the MZM structure into an optical PAM-4 signal.

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