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公开(公告)号：US10298357B2
公开(公告)日：2019-05-21
申请号：US15637905
申请日：2017-06-29
Applicant: Cisco Technology, Inc.
Inventor： Sean P. Anderson
Abstract: The present disclosure discloses a photonic chip. The photonic chip receives a first optical signal and a second optical signal with different wavelengths from two optical sources, respectively. The photonic chip includes a polarization multiplexing element (PME). The PME receives the first and the second optical signals from the first and the second optical sources respectively and combines the first and the second optical signals into a single optical path. The PME polarizes the first optical signal to have a different polarization than the second optical signal and transmits the combined first and the second optical signals in a common waveguide.
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公开(公告)号：US10914892B2
公开(公告)日：2021-02-09
申请号：US16164695
申请日：2018-10-18
Applicant: Cisco Technology, Inc.
Inventor： Igal I. Bayn , Vipulkumar Patel , Prakash B. Gothoskar , Sean P. Anderson
IPC: G02B6/12 , H01L31/0232 , H01L31/105 , G02B6/122 , H01L31/028
Abstract: A photonic device can include an optical detector (e.g., a photodetector) coupled to silicon waveguides. Unlike silicon, germanium is an efficient detector at the wavelength of optical signals typically used for data communication. Instead of directly coupling the waveguide to the germanium, in one embodiment, the waveguide extends below the germanium but is spaced sufficiently away from the germanium so that the optical signal is not transferred. Instead, an optical transfer structure (e.g., a tapered waveguide or an optical grating) is disposed between the germanium and the waveguide. The waveguide first transfers the optical signal into the optical transfer structure which then transfers the optical signal into the germanium.
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公开(公告)号：US10649305B2
公开(公告)日：2020-05-12
申请号：US15872176
申请日：2018-01-16
Applicant: Cisco Technology, Inc.
Inventor： Sean P. Anderson , Vipulkumar Patel
Abstract: An optical phase shifting arrangement and associated optical switching device and method are disclosed. The optical phase shifting arrangement comprises a first optical phase shifter configured to provide a first phase shift to an optical signal, and a second optical phase shifter configured to provide a second phase shift to the optical signal in addition to the first phase shift. During a predefined period, the first optical phase shifter and the second optical phase shifter are driven such that the second phase shift is substantially complementary to the first phase shift.
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公开(公告)号：US10394059B1
公开(公告)日：2019-08-27
申请号：US16221300
申请日：2018-12-14
Applicant: Cisco Technology, Inc.
Inventor： Sean P. Anderson , Ming Gai Stanley Lo
Abstract: An optical apparatus comprises a first arm comprising a first optical waveguide configured to propagate a first optical signal, and a first thermo-optic (TO) phase shifter arranged proximate to the first optical waveguide. The optical apparatus further comprises a second arm comprising a second optical waveguide configured to propagate a second optical signal, and a second TO phase shifter arranged proximate to the second optical waveguide. The optical apparatus further comprises a thermal bridge arranged between the first TO phase shifter and the second TO phase shifter.
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公开(公告)号：US09575337B2
公开(公告)日：2017-02-21
申请号：US14569016
申请日：2014-12-12
Applicant: Cisco Technology, Inc.
Inventor： Donald Benjamin Adams , Sean P. Anderson , Mark Andrew Webster , Matthew Traverso
CPC classification number: G02F1/025
Abstract: Embodiments presented in this disclosure generally relate to an electro-optic device that includes one or more modulator portions and a terminator portion. Each modulator portion is disposed along a propagation path of an optical signal and includes a respective first doped region and one or more coupled first electrical contacts. Each modulator portion operates to modulate an optical signal propagating through the first doped region using first electrical signals applied to the electrical contacts. The terminator portion is disposed along the propagation path and proximate to at least one modulator portions, and operates to mitigate effects of droop on the propagating optical signal.
Abstract translation: 在本公开中呈现的实施例通常涉及包括一个或多个调制器部分和终止器部分的电光装置。 每个调制器部分沿着光信号的传播路径设置，并且包括相应的第一掺杂区域和一个或多个耦合的第一电触头。 每个调制器部分操作以使用施加到电触点的第一电信号来调制通过第一掺杂区域传播的光信号。 终端器部分沿着传播路径设置并且靠近至少一个调制器部分，并且用于减轻下垂对传播光信号的影响。
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Patent Agency Ranking
公开(公告)号：US08873899B2
公开(公告)日：2014-10-28
申请号：US13828455
申请日：2013-03-14
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：US11067747B2
公开(公告)日：2021-07-20
申请号：US15662639
申请日：2017-07-28
Applicant: Cisco Technology, Inc.
Inventor： Sean P. Anderson , Vipulkumar Patel
IPC: G02B6/12 , G02B6/122 , H01L31/105 , H01L31/0232
Abstract: Embodiments herein describe optical interposers that utilize waveguides to detect light. For example, in one embodiment, an apparatus is provided that includes an optical detector having a first layer. The first layer includes at least one of polysilicon or amorphous silicon. The first layer forms a diode that includes a p-doped region and an n-doped region. The apparatus further includes a waveguide optically coupled to the diode and disposed on a different layer than the first layer.
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公开(公告)号：US10942377B2
公开(公告)日：2021-03-09
申请号：US16154127
申请日：2018-10-08
Applicant: Cisco Technology, Inc.
Inventor： Manohar Bhavsar Nagaraju , Sean P. Anderson , Alexander Christopher Kurylak , Kadaba Lakshmikumar
IPC: G02F1/01 , H04B10/556 , G02F1/225 , H04B10/54 , G02F1/21
Abstract: A driver circuit for a Mach-Zehnder modulator is provided that includes a first driver having an input to receive one of an input data or input data complement, and an output to be coupled to a first application voltage node associated with a first arm of a Mach-Zehnder modulator. The driver circuit includes a second driver having an input to receive the other of the input data complement or input data, and an output to be coupled to a second application voltage node associated with the first arm of the Mach-Zehnder modulator. The first driver and the second driver differentially drive the first and second application voltage nodes associated with the first arm of the Mach-Zehnder modulator to result in a voltage swing associated with a voltage applied to the first arm that is twice the supply voltage.
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19.发明授权公开(公告)号：US10734788B2
公开(公告)日：2020-08-04
申请号：US15910345
申请日：2018-03-02
Applicant: Cisco Technology, Inc.
Inventor： Dominic F. Siriani , Sean P. Anderson , Vipulkumar Patel
IPC: H01S5/343 , H01S5/02 , H01L21/68 , H01S5/34 , H01L21/02 , H01S5/022 , B82Y20/00 , H01S5/042 , H01S5/125 , H01S5/22 , H01S5/10
Abstract: A wafer comprising: a silicon substrate; a base layer of a predetermined thickness of a III-V semiconductor material bonded with the silicon substrate; and at least one layer grown on the base layer to form a plurality of quantum dot lasers.
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公开(公告)号：US10705313B2
公开(公告)日：2020-07-07
申请号：US15904038
申请日：2018-02-23
Applicant: Cisco Technology, Inc.
Inventor： Vipulkumar Patel , Sean P. Anderson , Weizhuo Li
Abstract: A system and related method and assembly are disclosed. The system comprises one or more optical fibers configured to propagate one or more optical signals. The system further comprises at least a first cylindrical lens element fixedly connected with the one or more optical fibers and configured to expand the one or more optical signals along a predefined dimension. The system further comprises at least a second cylindrical lens element optically coupled with the first cylindrical lens element and configured to condense the expanded one or more optical signals along the predefined dimension.
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