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公开(公告)号：US20240152027A1
公开(公告)日：2024-05-09
申请号：US18052219
申请日：2022-11-03
Applicant: International Business Machines Corporation
Inventor： Darius Urbonas , Thilo Hermann Curt Stoeferle , Rainer F. Mahrt
IPC: G02F3/00
CPC classification number: G02F3/00 , G02F2201/06 , G02F2203/15
Abstract: An optical gate device may have one or more optical cavities. The optical cavity may have an embedded optically-active material providing strong light-matter coupling. A pump input allows application to of a pulsed optical pump beam the optically-active material. The pump beam is absorbed by the optically active material to form an exciton-polariton condensate which emits light. The optical gate device may have an input waveguide to input a seed signal to the optical cavity. The optical gate device may include an output waveguide to output of an optical signal at a wavelength corresponding to a resonant mode of a the cavity. The device may operate in a manner such that, when the pump beam is applied to the pump input, an optical output signal is selectively provided in the output waveguide, via the input of the a seed signal and light emitted by the exciton-polariton condensate.
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公开(公告)号：US20240134248A1
公开(公告)日：2024-04-25
申请号：US18383415
申请日：2023-10-23
Applicant: Psiquantum, Corp.
Inventor： Mihai Dorian Vidrighin , Dylan Saunders
CPC classification number: G02F1/3526 , G02F1/3536 , G02F1/365 , G02F2201/06
Abstract: A frequency conversion system includes a bus waveguide, a first pump laser coupled to the bus waveguide and characterized by a first frequency, a second pump laser coupled to the bus waveguide and characterized by a second frequency, an input light combining device coupled to the bus waveguide and configured to combine light from the first pump laser and the second pump laser to produce a combined light, and a plurality of optical resonators coupled to the bus waveguide. Each optical resonator of the plurality of optical resonators has a respective resonance line width, wherein for each optical resonators of the plurality the respective resonance line width overlaps with a resonance line width of at least one adjacent optical resonator of the plurality of optical resonators, and wherein each optical resonator of the plurality is configured to generate output light at a converted frequency via frequency mixing.
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公开(公告)号：US11829049B2
公开(公告)日：2023-11-28
申请号：US17875256
申请日：2022-07-27
Applicant: Psiquantum, Corp.
Inventor： Mihai Dorian Vidrighin , Dylan Saunders
CPC classification number: G02F1/3526 , G02F1/3536 , G02F1/365 , G02F2201/06
Abstract: A photon source includes a bus waveguide, a photon source pump laser coupled to the bus waveguide and a plurality of optical resonators coupled to the bus waveguide. Each optical resonator of the plurality of optical resonators has a respective resonance line width and a respective resonance frequency, wherein a bandwidth of the resonant center frequencies of the plurality of optical resonators is greater than a bandwidth of the photon source pump laser. The bus waveguide produces photons in response to receiving laser pulses from the pump laser.
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公开(公告)号：US20230351930A1
公开(公告)日：2023-11-02
申请号：US18349362
申请日：2023-07-10
Applicant: LUMUS LTD.
Inventor： Shimon GRABARNIK , Tsion EISENFELD , Elad SHARLIN
CPC classification number: G09G3/001 , G02F1/011 , G02F2201/06 , G02F2203/01 , G02F2203/02 , G09G2320/0257 , G09G2354/00 , G09G2360/144
Abstract: In an embodiment, an apparatus is disclosed that includes at least one processor configured to determine a target portion of an eye motion box and to identify a facet of a light-guide optical element that is configured to direct a light beam comprising at least a portion of an image field of view toward the target portion of the eye motion box. The at least one processor is configured to identify a display region of an image generator that is configured to inject the light beam into the light-guide optical element at an angle that, in conjunction with the identified facet, is configured to direct the light beam toward the target portion of the eye motion box. The at least one processor is configured to selectively activate the identified facet and the identified display region to direct the light beam toward the target portion of the eye motion box.
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公开(公告)号：US10365536B1
公开(公告)日：2019-07-30
申请号：US15890605
申请日：2018-02-07
Applicant: EAGLE TECHNOLOGY, LLC
Inventor： Micah H. Jenkins , Christopher J. Carron , Charles F. Middleton
CPC classification number: G02F1/2955 , G01S7/4811 , G01S17/02 , G02F2201/06 , G02F2202/20
Abstract: An optical device may include a monolithic body of optical material including an optical signal port, an optical coupler/splitter portion including a plurality of optical couplers/splitters arranged in a planar configuration and coupled to the optical signal port, and a phase modulation portion including a plurality of phase shifters arranged in a planar configuration and coupled to respective ones of the plurality of optical couplers/splitters. The monolithic body may also include a fanning-array portion including a plurality of optical waveguides extending from the phase modulation portion in a planar configuration and fanning to a two-dimensional array on an edge of the monolithic body.
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Patent Agency Ranking
公开(公告)号：US20180341126A1
公开(公告)日：2018-11-29
申请号：US15977050
申请日：2018-05-11
Applicant: FUJIKURA LTD.
Inventor： Norihiro Ishikura , Kazuhiro Goi
IPC: G02F1/01
CPC classification number: G02F1/0147 , G02F2201/06 , G02F2202/10 , G02F2203/21
Abstract: Provided is a semiconductor optical integrated circuit which consumes less electric power than a conventional semiconductor optical integrated circuit. A semiconductor optical integrated circuit (1) includes a semiconductor layer (13) in which (i) an optical waveguide (LG) including heated section I1 through I3 and (ii) heater parts H1 and H2 are provided. The optical waveguide (LG) meanders such that the heated sections I1 through I3 are juxtaposed to one another. Each heater part Hi is arranged between a heated section Ii and a heated section Ii+1 which are adjacent to each other.
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公开(公告)号：US20180321521A1
公开(公告)日：2018-11-08
申请号：US16036409
申请日：2018-07-16
Applicant: Luxtera, Inc.
Inventor： Ali Ayazi , Gianlorenzo Masini , Subal Sahni , Attila Mekis , Thierry Pinguet
CPC classification number: G02F1/025 , G02F1/2257 , G02F2001/212 , G02F2201/06 , G02F2202/105
Abstract: Methods and systems for a low-parasitic silicon high-speed phase modulator are disclosed and may include fabricating an optical phase modulator that comprises a PN junction waveguide formed in a silicon layer, wherein the silicon layer may be on an oxide layer and the oxide layer may be on a silicon substrate. The PN junction waveguide may have p-doped and n-doped regions on opposite sides along a length of the PN junction waveguide, and portions of the p-doped and n-doped regions may be removed. Contacts may be formed on remaining portions of the p-doped and n-doped regions. Portions of the p-doped and n-doped regions may be removed symmetrically about the PN junction waveguide. Portions of the p-doped and n-doped regions may be removed in a staggered fashion along the length of the PN junction waveguide. Etch transition features may be removed along the p-doped and n-doped regions.
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公开(公告)号：US20180292727A1
公开(公告)日：2018-10-11
申请号：US15479999
申请日：2017-04-05
Applicant: Analog Devices, Inc.
Inventor： Michael Ziemkiewicz , Scott R. Davis , Michael H. Anderson , Tyler Adam Dunn
IPC: G02F1/295
CPC classification number: G02F1/295 , G02F2201/06 , G02F2201/16 , G02F2203/24
Abstract: The present subject matter includes apparatus and techniques that can be used to reduce losses in systems that perform steering of a light beam. Such steering can be performed in a non-mechanical manner, such as using an electrically-controlled optical structure (e.g., an electro-optical structure). For example, a waveguide can be used to adjust an angle of a light beam (e.g., steer the light beam). The waveguide can include a core, a cladding including an electro-optic material, and electrodes defining an arrangement that, when selectively energized, adjusts an index of refraction of the electro-optic material. In particular, electrode arrangements as described herein can be used to reduce losses, such as losses that would occur due to diffraction.
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公开(公告)号：US20180173025A1
公开(公告)日：2018-06-21
申请号：US15846755
申请日：2017-12-19
Applicant: NeoPhotonics Corporation
Inventor： Kenneth McGreer , Calvin Ho
CPC classification number: G02F1/0147 , G02F1/225 , G02F1/2257 , G02F2001/212 , G02F2201/06 , G02F2202/09 , G02F2203/48 , G02F2203/50
Abstract: Energy efficient thermo-optic phase shifters have a configuration with two sections of a waveguide adjacent for heating by a common heater. A loop section can connect the two heated waveguide sections. Further improved efficiency can be achieved in which the heated sections are curved to allow closer placement of the adjacent waveguides. The heater can be curved to follow the configuration of the curved heated waveguide sections. Energy efficiency gains can be up to approximately a factor of two over corresponding traditional thermo-optical phase shifter designs.
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公开(公告)号：US09989831B2
公开(公告)日：2018-06-05
申请号：US15447297
申请日：2017-03-02
Inventor： Marcel W. Pruessner , William S. Rabinovich , Rita Mahon , Peter G. Goetz
CPC classification number: G02F1/292 , G01S7/4813 , G01S7/4817 , G02B6/124 , G02B6/2804 , G02B6/2813 , G02B6/2821 , G02F2201/06
Abstract: A device includes an optical splitter comprising a plurality of splitter outputs. The splitter outputs are out of phase and include a non-uniform phase front. The device includes a one-dimensional phase compensation array communicating with the optical splitter. The phase compensation array receives the non-uniform phase front and outputs a uniform phase front. The phase compensation array includes a plurality of array outputs. The device includes a tunable linear gradient phase shifter communicating with said phase compensation array to impart a linearly-varying phase shift across said plurality of array outputs, thereby steering a beam along a first angle in a first plane. The device includes a waveguide grating out-coupler communicating with said linear gradient phase shifter, and a uniform phase shifter communicating with the waveguide grating out-coupler. The uniform phase shifter steers the flat phase front along a second angle in a second plane perpendicular to said first plane.
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