公开(公告)号：US11300728B2

公开(公告)日：2022-04-12

申请号：US16787632

申请日：2020-02-11

Applicant: Cisco Technology, Inc.

Inventor： Matthew J. Traverso ,  Jock T. Bovington ,  Ashley J. M. Erickson

IPC: G02B6/12 ,  G02B6/13 ,  G02B6/42 ,  G02B6/30

Abstract: Solder reflow compatible connections between optical components are provided by use of reflow compatible epoxies to bond optical components and remain bonded between the optical components at temperatures of at least 260 degrees Celsius for at least five minutes. In some embodiments, the reflow compatible epoxy is index matched to the optical channels in the optical components and is disposed in the light path therebetween. In some embodiments, a light path is defined between the optical channels through at least a portion of an air gap between the optical components.

公开(公告)号：US11215775B2

公开(公告)日：2022-01-04

申请号：US16544699

申请日：2019-08-19

Applicant: Cisco Technology, Inc.

Inventor： Ashley J. Maker ,  Joyce J. M. Peternel ,  Sandeep Razdan ,  Matthew J. Traverso ,  Aparna R. Prasad

IPC: G02B6/42

Abstract: An optical connection assembly joining optical components is described. The optical connection assembly is manufactured using a fan out wafer level packaging to produce dies/frames which include mechanical connection features. A fastener is joined to a connection component and affixed to the mechanical connection features, to provide structural support to the connection between the connected component and the die/frame structure.

公开(公告)号：US11073661B1

公开(公告)日：2021-07-27

申请号：US16751994

申请日：2020-01-24

Applicant: Cisco Technology, Inc.

Inventor： Dominic F. Siriani ,  Vipulkumar K. Patel ,  Matthew J. Traverso ,  Mark A. Webster

IPC: G02B6/293

Abstract: Aspects described herein include an optical waveguide emitter that includes a first optical waveguide and a second optical waveguide that are evanescently coupled and collectively configured to selectively propagate only a first mode of a plurality of optical modes. Each of the first optical waveguide and the second optical waveguide extend through an input waveguide section, a turning waveguide section, and an output waveguide section. One or more of the input waveguide section, the turning waveguide section, and the output waveguide section includes an optically active region. The optical waveguide emitter further includes a refractive index-increasing feature in the turning waveguide section.

公开(公告)号：US10725240B2

公开(公告)日：2020-07-28

申请号：US16132109

申请日：2018-09-14

Applicant: Cisco Technology, Inc.

Inventor： Jock T. Bovington ,  Matthew J. Traverso

IPC: G02B6/12 ,  H01S5/026 ,  H04B10/25

Abstract: A method comprises receiving, at a plurality of optical distributors of a photonic chip, optical energy from a plurality of primary laser sources. Each of the optical distributors receives optical energy from a respective primary laser source at a respective first input. The method further comprises detecting a failed primary laser source of the primary laser sources using control circuitry of a sparing system. The sparing system further comprises one or more secondary laser sources configured to provide optical energy to respective second inputs of the optical distributors. A first one of the secondary laser sources is optically coupled with at least two of the optical distributors. The method further comprises controlling, using the control circuitry, a first one of the secondary laser sources to selectively provide optical energy to the optical distributor whose first input is optically coupled with the failed primary laser source.

公开(公告)号：US10608410B2

公开(公告)日：2020-03-31

申请号：US16436573

申请日：2019-06-10

Applicant: Cisco Technology, Inc.

Inventor： Matthew J. Traverso ,  Dominic F. Siriani ,  Mark Webster

IPC: H01S5/12 ,  H01S5/10 ,  G02B6/12 ,  H01S5/125 ,  H01S5/028 ,  H01S5/022 ,  H01S5/30 ,  H01S5/22 ,  H01S5/026

Abstract: The embodiments herein describe a single-frequency laser source (e.g., a distributed feedback (DFB) laser or distributed Bragg reflector (DBR) laser) that includes a feedback grating or mirror that extends along a waveguide. The grating may be disposed over a portion of the waveguide in an optical gain region in the laser source. Instead of the waveguide or cavity being linear, the laser includes a U-turn region so that two ends of the waveguide terminate at the same facet. That facet is coated with an anti-reflective (AR) coating.

公开(公告)号：US11831093B2

公开(公告)日：2023-11-28

申请号：US17645195

申请日：2021-12-20

Applicant: Cisco Technology, Inc.

Inventor： Matthew J. Traverso ,  Sandeep Razdan ,  Joyce J. M. Peternel

IPC: H01R12/70 ,  G02B6/38

CPC classification number: H01R12/7005 ,  G02B6/3817

Abstract: An apparatus includes a substrate, a frame, and a socket. The frame defines a slot. The frame is coupled to the substrate such that the slot is aligned with an attachment location on the substrate. The socket receives a first device. The socket aligns with the attachment location on the substrate when the socket is inserted in the slot.

公开(公告)号：US11762155B2

公开(公告)日：2023-09-19

申请号：US17445914

申请日：2021-08-25

Applicant: Cisco Technology, Inc.

Inventor： Vipulkumar K. Patel ,  Matthew J. Traverso ,  Sandeep Razdan ,  Aparna R. Prasad

IPC: G02B6/42

CPC classification number: G02B6/423 ,  G02B6/4202

Abstract: Embodiments herein describe an optical system that includes a photonic integrated circuit (PIC) bonded to a package containing an electrical integrated circuit (EIC). However, this bond can prevent an edge coupler from optically aligning an optical fiber to an edge of the PIC in order to transfer optical signals. To provide room for the edge coupler, the PIC is arranged to overhang the package containing the EIC so that the package does not interfere with the ability of the edge coupler to align with the side or edge of the PIC. In this manner, an optical fiber can be optically aligned (e.g., butt coupled) to the edge of the PIC rather than having to use a grating coupler or some other less efficient optical coupling in order to transfer optical signals between the PIC and the optical fiber.

公开(公告)号：US11668875B2

公开(公告)日：2023-06-06

申请号：US16836768

申请日：2020-03-31

Applicant: Cisco Technology, Inc.

Inventor： Ashley J. M. Erickson ,  Matthew J. Traverso

IPC: G02B6/12 ,  G02B6/24 ,  G02B6/26 ,  G02B6/28 ,  G02B6/35 ,  G02B23/08 ,  G02B6/30 ,  G02B6/125

CPC classification number: G02B6/24 ,  G02B6/12 ,  G02B6/12002 ,  G02B6/12004 ,  G02B6/264 ,  G02B6/2804 ,  G02B6/2821 ,  G02B6/3528 ,  G02B6/125 ,  G02B6/30 ,  G02B6/3596 ,  G02B23/08 ,  G02B2006/12104

Abstract: Periscope assemblies are provided which have a light path that travels in a first plane along the first waveguide, a second plane along the second waveguide that is parallel to the first plane, and along a third plane along the third waveguide that intersects the first plane and the second plane. In some examples the periscope assembly includes first and second carriers comprising respective first and second waveguides and defining respective first and second cavities in which a third carrier comprising a third waveguide is disposed and optionally includes an optical component. In some examples, the cavities are defined in one or more carriers on a mating surface, on a side opposite to the mating surface, or on a side perpendicular to a mating surface.

公开(公告)号：US11226450B2

公开(公告)日：2022-01-18

申请号：US17103735

申请日：2020-11-24

Applicant: Cisco Technology, Inc.

Inventor： Matthew J. Traverso ,  Ashley J. Maker ,  Sandeep Razdan

IPC: G02B6/26 ,  G02B23/08

Abstract: The present disclosure provides for periscope optical assemblies within interposers that include a bulk material having a first side and a second side opposite to the first side; a first optic defined in the bulk material at a first height in the bulk material along an axis extending between the first second sides; a second optic defined in the bulk material at a second height in the bulk material, different than the first height, along the axis; a first waveguide defined in the bulk material, extending from the first side to the first optic; a second waveguide defined in the bulk material, extending from the second optic to the second side; and a third waveguide defined in the bulk material, extending from the first optic to the second optic.

公开(公告)号：US10720995B1

公开(公告)日：2020-07-21

申请号：US16547389

申请日：2019-08-21

Applicant: Cisco Technology, Inc.

Inventor： Marco Mazzini ,  Christopher R. S. Fludger ,  Alberto Cervasio ,  Matthew J. Traverso

IPC: H04B10/2507 ,  H04B10/524 ,  H04L25/49 ,  H04J14/02 ,  H04B1/04 ,  H04B10/2513 ,  H04B10/516 ,  H04B10/54 ,  H04B10/079

Abstract: The present disclosure provides signal management with unequal eye spacing by: sending, from a local transmitter, first and second signals with different first and second known eye patterns to a remote receiver over a channel; sending temperature data of the local transmitter and operating wavelength data of the first and second signals to the remote receiver over the channel; receiving, from the remote receiver, tuning parameters based on a dispersion of the channel based on a first difference between the first known eye pattern as transmitted and as received and a second difference between the second known eye pattern as transmitted and as received; and adjusting transmission rail values used to encode data for transmission over the channel by the local transmitter based on the tuning parameters to produce a conditioned signal for transmission with an unequally spaced eye pattern.