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公开(公告)号：US12117650B2
公开(公告)日：2024-10-15
申请号：US18448429
申请日：2023-08-11
Applicant: Cisco Technology, Inc.
Inventor： Shiyi Chen , Tao Ling , Weizhuo Li , Mark A. Webster
CPC classification number: G02B6/29304 , G02B6/02261 , G02B6/124 , G02B6/2931 , G02B6/29311 , G02B6/30 , G02B6/3514 , G02B6/3526 , G02B2006/12102 , G02B2006/12111 , G02B6/1225 , G02B6/4214
Abstract: Embodiments include a fiber to photonic chip coupling system including a collimating lens which collimate a light transmitted from a light source and an optical grating including a plurality of grating sections. The system also includes an optical dispersion element which separates the collimated light from the collimating lens into a plurality of light beams and direct each of the plurality of light beams to a respective section of the plurality of grating sections. Each light beam in the plurality of light beams is diffracted from the optical dispersion element at a different wavelength a light beam of the plurality of light beams is directed to a respective section of the plurality of grating sections at a respective incidence angle based on the wavelength of the light beam of the plurality of light beams to provide optimum grating coupling.
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公开(公告)号：US11089391B1
公开(公告)日：2021-08-10
申请号：US16862262
申请日：2020-04-29
Applicant: Cisco Technology, Inc.
Inventor： Tao Ling , Ravi S. Tummidi , Yi Ho Lee , Mark A. Webster
Abstract: Process margin relaxation is provided in relation to a compensated-for process via a first optical device, fabricated to satisfy an operational specification when a compensated-for process is within a first tolerance range; a second optical device, fabricated to satisfy the operational specification when the compensated-for process is within second tolerance range, different than the first tolerance range; a first optical switch connected to an input and configured to output an optical signal received from the input to one of the first optical device and the second optical device; and a second optical switch configured to combine outputs from the first optical device and the second optical device.
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公开(公告)号：US11002980B1
公开(公告)日：2021-05-11
申请号：US16814721
申请日：2020-03-10
Applicant: Cisco Technology, Inc.
Inventor： Tao Ling , Yi Ho Lee , Ravi S. Tummidi , Mark A. Webster
Abstract: Aspects described herein include an optical apparatus comprising an input port configured to receive an optical signal comprising a plurality of wavelengths, and a plurality of output ports. Each output port is configured to output a respective wavelength of the plurality of wavelengths. The optical apparatus further comprises a first plurality of two-mode Bragg gratings in a cascaded arrangement. Each grating of the first plurality of two-mode Bragg gratings is configured to reflect a respective wavelength of the plurality of wavelengths toward a respective output port of the plurality of output ports, and transmit any remaining wavelengths of the plurality of wavelengths.
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公开(公告)号：US10921619B2
公开(公告)日：2021-02-16
申请号：US16351079
申请日：2019-03-12
Applicant: Cisco Technology, Inc.
Inventor： Alexey V. Vert , Mark A. Webster
IPC: G02B6/10 , G02F1/035 , G02B6/12 , G02B6/26 , G02B6/42 , G02F1/025 , G02B6/132 , H01L21/02 , H01L21/20
Abstract: Embodiments provide for an optical modulator that includes a first silicon region, a polycrystalline silicon region; a gate oxide region joining the first silicon region to a first side of the polycrystalline region; and a second silicon region formed on a second side of the polycrystalline silicon region opposite to the first side, thereby defining an active region of an optical modulator between the first silicon region, the polycrystalline region, the gate oxide region, and the second silicon region. The polycrystalline silicon region may be between 0 and 60 nanometers thick, and may be formed or patterned to the desired thickness. The second silicon region may be epitaxially grown from the polycrystalline silicon region and patterned into a desired cross sectional shape separately from or in combination with the polycrystalline silicon region.
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公开(公告)号：US10564352B1
公开(公告)日：2020-02-18
申请号：US16543441
申请日：2019-08-16
Applicant: Cisco Technology, Inc.
Inventor： Sandeep Razdan , Ashley J. Maker , Matthew J. Traverso , Mark A. Webster , Jock T. Bovington
Abstract: Aspects described herein include a method comprising forming an insulator layer above a silicon layer of a silicon-on-insulator (SOI) substrate. A first optical device is formed partly in the silicon layer and partly in the insulator layer. A first optical waveguide is formed in the insulator layer and optically coupled with the first optical device. The method further comprises forming conductive contacts extending partly through the insulator layer to the first optical device, bonding a first surface of an interposer with a top surface of the insulator layer, and forming, from a second surface of the interposer opposite the first surface, a plurality of first conductive vias extending at least partly through the interposer. The plurality of first conductive vias are coupled with the conductive contacts.
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Patent Agency Ranking
公开(公告)号：US10393959B1
公开(公告)日：2019-08-27
申请号：US16172702
申请日：2018-10-26
Applicant: Cisco Technology, Inc.
Inventor： Sandeep Razdan , Ashley J. Maker , Matthew J. Traverso , Mark A. Webster , Jock T. Bovington
Abstract: A method comprises bonding a first surface of an interposer wafer with a first exterior surface of a photonic wafer assembly. The photonic wafer assembly comprises one or more optical devices coupled with one or more metal layers and with one or more first optical waveguides. The method further comprises forming, from a second surface opposite the first surface, a plurality of first conductive vias extending at least partway through the interposer wafer and coupled with the one or more metal layers. The method further comprises forming, at the second surface, a plurality of first conductive pads coupled with the plurality of first conductive vias. The method further comprises forming one or more second conductive pads coupled with the one or more metal layers. The one or more second conductive pads are accessible at a second exterior surface of the photonic wafer assembly opposite the first exterior surface.
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公开(公告)号：US09329344B2
公开(公告)日：2016-05-03
申请号：US14496489
申请日：2014-09-25
Applicant: Cisco Technology, Inc.
Inventor： Sean P. Anderson , Mark A. Webster
CPC classification number: G02B6/27 , G02B6/126 , G02B6/2706 , G02B6/2766 , G02B6/2773
Abstract: An optical waveguide structure includes a rotator having a dual-layer core. A first layer of the dual-layer core may include a tapering portion. A second layer of the dual-layer core may include a rib portion disposed on the tapering portion. The combination of the rib portion and the tapering portion may receive a pair of optical signals, one being polarized in a TE mode and the other being polarized in a TM mode, and convert them to a pair of TE mode optical signals.
Abstract translation: 光波导结构包括具有双层芯的旋转器。 双层芯的第一层可以包括锥形部分。 双层芯的第二层可以包括设置在锥形部分上的肋部分。 肋部分和锥形部分的组合可以接收一对光信号，一个在TE模式下极化，另一个在TM模式下极化，并将它们转换成一对TE模式光信号。
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公开(公告)号：US20150023630A1
公开(公告)日：2015-01-22
申请号：US14496489
申请日：2014-09-25
Applicant: Cisco Technology, Inc.
Inventor： Sean P. Anderson , Mark A. Webster
IPC: G02B6/27
CPC classification number: G02B6/27 , G02B6/126 , G02B6/2706 , G02B6/2766 , G02B6/2773
Abstract: An optical waveguide structure includes a rotator having a dual-layer core. A first layer of the dual-layer core may include a tapering portion. A second layer of the dual-layer core may include a rib portion disposed on the tapering portion. The combination of the rib portion and the tapering portion may receive a pair of optical signals, one being polarized in a TE mode and the other being polarized in a TM mode, and convert them to a pair of TE mode optical signals.
Abstract translation: 光波导结构包括具有双层芯的旋转器。 双层芯的第一层可以包括锥形部分。 双层芯的第二层可以包括设置在锥形部分上的肋部分。 肋部分和锥形部分的组合可以接收一对光信号，一个在TE模式下极化，另一个在TM模式下极化，并将它们转换成一对TE模式光信号。
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公开(公告)号：US11467420B2
公开(公告)日：2022-10-11
申请号：US17301968
申请日：2021-04-20
Applicant: Cisco Technology, Inc.
Inventor： Tao Ling , Yi Ho Lee , Ravi S. Tummidi , Mark A. Webster
Abstract: Aspects described herein include an optical apparatus comprising an input port configured to receive an optical signal comprising a plurality of wavelengths, and a plurality of output ports. Each output port is configured to output a respective wavelength of the plurality of wavelengths. The optical apparatus further comprises a first plurality of two-mode Bragg gratings in a cascaded arrangement. Each grating of the first plurality of two-mode Bragg gratings is configured to reflect a respective wavelength of the plurality of wavelengths toward a respective output port of the plurality of output ports, and transmit any remaining wavelengths of the plurality of wavelengths.
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公开(公告)号：US11067750B2
公开(公告)日：2021-07-20
申请号：US16259998
申请日：2019-01-28
Applicant: Cisco Technology, Inc.
Inventor： Alexey V. Vert , Vipulkumar K. Patel , Mark A. Webster
Abstract: Embodiments disclosed herein generally relate to optical coupling between a highly-confined waveguide region and a low confined waveguide region in an optical device. The low confined waveguide region includes a trench in a substrate of the optical device in order to provide additional dielectric layer thickness for insulation between the substrate of the optical device and waveguides for light signals having a low optical mode. The low confined waveguide region is coupled to the highly-confined waveguide region via a waveguide overlap and in some embodiments via an intermediary coupling waveguide.
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