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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：US12035082B2
公开(公告)日：2024-07-09
申请号：US18056160
申请日：2022-11-16
Applicant: Cisco Technology, Inc.
Inventor： Tao Ling , Ravi S. Tummidi , Yi Ho Lee , Mark A. Webster
CPC classification number: H04Q11/0005 , H04J14/0204 , H04J14/0205 , H04J14/0216 , H04Q2011/0007
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：US10935726B1
公开(公告)日：2021-03-02
申请号：US16593821
申请日：2019-10-04
Applicant: Cisco Technology, Inc.
Inventor： Yi Ho Lee , Tao Ling , Ravi S. Tummidi , Mark A. Webster
Abstract: An optical device is disclosed, including a phase delay, a first adiabatic coupler adapted to receive an input signal and adapted to be optically coupled to an input of the phase delay, and a second adiabatic coupler adapted to be optically coupled to an output of the phase delay. The second adiabatic coupler includes a first waveguide including a first portion optically coupled to the first output and including a first width, and a second waveguide including a second portion optically coupled to the second output and comprising a second width that is approximately equal to the first width.
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公开(公告)号：US10852472B1
公开(公告)日：2020-12-01
申请号：US16445083
申请日：2019-06-18
Applicant: Cisco Technology, Inc.
Inventor： Tao Ling , Yi Ho Lee , Ravi S. Tummidi , Mark A. Webster
IPC: G02B6/02 , G02B6/293 , H04J14/02 , G02B6/12 , H04B10/60 , H04B10/66 , H04B10/50 , H04B10/67 , H04J14/00 , H04B10/40
Abstract: Aspects described herein include an optical apparatus comprising at least a first Bragg grating of a first stage. The first Bragg grating is configured to transmit a first two wavelengths and to reflect a second two wavelengths of a received optical signal. The optical apparatus further comprises a second Bragg grating of a second stage. The second Bragg grating is configured to transmit one of the first two wavelengths and to reflect the other of the first two wavelengths. The optical apparatus further comprises a third Bragg grating of the second stage. The third Bragg grating is configured to transmit one of the second two wavelengths and to reflect the other of the second two wavelengths.
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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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Patent Agency Ranking
公开(公告)号：US11360268B1
公开(公告)日：2022-06-14
申请号：US17249893
申请日：2021-03-17
Applicant: Cisco Technology, Inc.
Inventor： Tao Ling , Shiyi Chen , Ravi S. Tummidi
IPC: H04J14/04 , G02B6/293 , H04B10/2581 , H04B10/80
Abstract: Aspects described herein include a mode multiplexer comprising a first optical waveguide extending between a first port and a second port. A first input mode of an optical signal entering the first port is propagated through the first optical waveguide to the second port. The mode multiplexer further comprises a second optical waveguide configured to evanescently couple with a coupling section of the first optical waveguide. A second input mode of the optical signal entering the first port is propagated through the second optical waveguide to a third port. The first optical waveguide further defines a filtering section between the coupling section and the second port, the filtering section configured to filter the second input mode.
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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：US11762150B2
公开(公告)日：2023-09-19
申请号：US17663158
申请日：2022-05-12
Applicant: Cisco Technology, Inc.
Inventor： Shiyi Chen , Tao Ling , Weizhuo Li , Mark A. Webster
CPC classification number: G02B6/29304 , G02B6/02261 , G02B6/124 , G02B6/29311 , G02B6/30 , G02B6/3514 , G02B6/3526 , G02B6/1225 , G02B6/4214 , G02B2006/12102 , G02B2006/12111
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：US11520106B2
公开(公告)日：2022-12-06
申请号：US17187477
申请日：2021-02-26
Applicant: Cisco Technology, Inc.
Inventor： Yi Ho Lee , Tao Ling , Ravi S. Tummidi , Mark A. Webster
Abstract: An optical device is disclosed, including a phase delay, a first adiabatic coupler adapted to receive an input signal and adapted to be optically coupled to an input of the phase delay, and a second adiabatic coupler adapted to be optically coupled to an output of the phase delay. The second adiabatic coupler includes a first waveguide including a first portion optically coupled to the first output and including a first width, and a second waveguide including a second portion optically coupled to the second output and including a second width that is approximately equal to the first width.
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