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公开(公告)号:US11296795B1
公开(公告)日:2022-04-05
申请号:US17185404
申请日:2021-02-25
Applicant: Acacia Communications, Inc.
Inventor: Mehmet Aydinlik , Jonas Geyer , Christian Rasmussen
IPC: H04B10/556 , H04L1/00
Abstract: In a first embodiment, a method and apparatus for encoding a first spectral efficiency into a second spectral efficiency; wherein the second spectral efficiency has a higher order than the first spectral efficiency. In a second embodiment, a method and apparatus for achieving at least two spectral efficiencies using a single type of modulation.
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公开(公告)号:US20220026747A1
公开(公告)日:2022-01-27
申请号:US16937334
申请日:2020-07-23
Applicant: Acacia Communications, Inc.
Inventor: Long Chen
IPC: G02F1/025
Abstract: Methods of fabricating electro-optical modulators and the resulting electro-optical modulators are described herein. In some embodiments, a method comprises defining a waveguide having a core region, implanting dopants into a contact region of the waveguide, and diffusing the dopants laterally toward the core region. In some embodiments, a method comprises implanting n-type and p-type dopants into respective first and second contact regions of the optical waveguide and annealing the optical waveguide to induce lateral diffusion of the n-type and p-type dopants toward a center of the optical waveguide. In some embodiments, an electro-optical modulator comprises a waveguide comprising a contact region and a core region, and the waveguide has a dopant concentration that decreases from the contact region to the core region according to a super-linear curve. Methods and resulting structures described herein provide desirable electrical resistance and low overlap between dopants and optical signals.
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公开(公告)号:US11063406B1
公开(公告)日:2021-07-13
申请号:US16893341
申请日:2020-06-04
Applicant: Acacia Communications, Inc.
Inventor: Tymon Barwicz
IPC: H04B10/25 , H04B10/564 , H01S5/50 , H01S5/10
Abstract: A semiconductor optical amplifier having a 3 dB coupler is described for use in providing an amplified optical data signal to a photonic chip. The semiconductor optical amplifier includes an amplifier die having a signal coupling facet, waveguides terminating at the signal coupling facet, a 3 dB coupler, and a reflector. The 3 dB coupler is optically coupled between the signal coupling facet and the reflector.
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公开(公告)号:US11050175B1
公开(公告)日:2021-06-29
申请号:US16883270
申请日:2020-05-26
Applicant: Acacia Communications, Inc.
Inventor: David Mullert
Abstract: A system and apparatus for increasing connectivity of a circuit board comprising a connector, wherein the connector has a horizontal body and a hollow cylindrical portion extruding vertically from the body; wherein the cylindrical portion is made up of a set of pieces; wherein at least a piece of the set of pieces is arranged to expand horizontally, upon insertion of a phalanx head in a vertical manner. A method to increase current connectivity comprising screwing a fastener into threads of a connector through a hollow cylindrical portion of the connector; wherein the hollow cylindrical portion of the connector is made up of a set of pieces; wherein the screwing causes a phalanx head to contact the cylindrical portion expanding at least one piece of the set of pieces in a horizontal manner in relation to the fastener.
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公开(公告)号:US10979209B1
公开(公告)日:2021-04-13
申请号:US16595275
申请日:2019-10-07
Applicant: Acacia Communications, Inc.
Inventor: Michael Sluyski , Pierre Humblet , James Duda
Abstract: A method, system, and apparatus for transmitting information over an coherent optical link comprising enabling synchronous and asynchronous data sources to be mapped together into a single payload using a generic mapping system which performs decoupling of a clock from each data source, and mapping data from each data source into a tributary of an oFrame.
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公开(公告)号:US10819438B1
公开(公告)日:2020-10-27
申请号:US16364909
申请日:2019-03-26
Applicant: Acacia Communications, Inc.
Inventor: Jon Stahl , James Duda
Abstract: A system, apparatus, and method for an optical grooming network; wherein a set of switches form an optical grooming interconnection system where each switch is communicatively coupled to each other switch; a set of clients; where each switch of the set of switches is communicatively coupled to a client of the clients; wherein each client receiver is enabled to communicate through the set of switches to any client or modem; and a set of coherent optical modems; wherein each coherent optical modem is communicatively coupled to a switch of the set of switches; wherein each client of the clients is able to communicate through the set of switches to every coherent optical modem of the set of coherent optical modems, and each coherent optical modem in the set of coherent optical modems can communicate to every coherent optical modem of the set of coherent optical modems.
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公开(公告)号:US10784897B2
公开(公告)日:2020-09-22
申请号:US16447378
申请日:2019-06-20
Applicant: Acacia Communications, Inc.
Inventor: Pierre Humblet
Abstract: A method, apparatus, and system for a deinterleaver.
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公开(公告)号:US20190363800A1
公开(公告)日:2019-11-28
申请号:US16533046
申请日:2019-08-06
Applicant: Acacia Communications, Inc.
Inventor: Hongbin Zhang , Mehmet Aydinlik
IPC: H04B10/54 , H04B10/516 , H04L27/34
Abstract: Quadrature amplitude modulation (QAM) techniques for use in optical systems are described. An optical transceiver may include a modulator configured to modulate data according to a scaled set-partitioning QAM (SP-QAM) scheme. The modulator may be configured to receive a plurality of bits, associate the plurality of bits with a plurality of symbols according to the scaled (SP-QAM) scheme; and transmit the plurality of symbols over an optical channel. A demodulator in an optical receiver may receive the plurality of symbols transmitted over the optical channel and associate the received symbols with a plurality of bits according to the scaled (SP-QAM) scheme; and provide the plurality of bits to a forward error correction decoder.
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公开(公告)号:US20190293881A1
公开(公告)日:2019-09-26
申请号:US16441775
申请日:2019-06-14
Applicant: Acacia Communications, Inc.
Inventor: Long Chen , Christopher Doerr , Li Chen
Abstract: An integrated wavelength division multiplexer is described. The integrated wavelength division multiplexer may include a first waveguide core defining a first propagation axis and configured to guide light of a first wavelength and light of a second wavelength, and a second waveguide core defining a second propagation axis and configured to guide the light of the second wavelength. A first portion of the second propagation axis for which the first waveguide core and second waveguide core may be overlapping is oriented at a non-zero angle relative to the first propagation axis. The first waveguide core and second waveguide core may be configured relative to each other to adiabatically couple the light of the second wavelength between the first and second waveguide cores.
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公开(公告)号:US10425109B1
公开(公告)日:2019-09-24
申请号:US16109612
申请日:2018-08-22
Applicant: Acacia Communications, Inc.
Inventor: Pierre Humblet
Abstract: A method, apparatus, and system for deinterleaving data.
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