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公开(公告)号：US12189221B2
公开(公告)日：2025-01-07
申请号：US18211004
申请日：2023-06-16
Applicant: RAYTHEON COMPANY
Inventor： Gary M. Graceffo , Andrew Kowalevicz , Benjamin P. Dolgin
IPC: G02F1/03
Abstract: Aspects and examples are directed to programmable optical finite impulse response filters and optical infinite impulse response filters, which may be implemented as photonic integrated circuits.
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公开(公告)号：US12147097B2
公开(公告)日：2024-11-19
申请号：US17764022
申请日：2020-09-15
Applicant: SUMITOMO OSAKA CEMENT CO., LTD.
Inventor： Norikazu Miyazaki , Toru Sugamata
Abstract: An optical modulator includes: an optical modulation element that is configured to generate two modulated light beams, each of which is modulated by two sets of electrical signals, and that includes a plurality of signal electrodes; a plurality of signal input terminals, each of which inputs an electrical signal; a relay substrate on which a plurality of signal conductor patterns and a plurality of ground conductor patterns are formed, the relay substrate being configured to propagate the two sets of electrical signals by two pairs of the adjacent signal conductor patterns; and a housing, in which the at least two signal conductor patterns including at least one parts mounting part including electrical circuit elements are configured such that first signal propagation directions, which are signal propagation directions at the parts mounting parts, are different from each other.
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公开(公告)号：US20240310662A1
公开(公告)日：2024-09-19
申请号：US18120802
申请日：2023-03-13
Applicant: Mellanox Technologies, Ltd.
Inventor： Moshe B. ORON , Oren STEINBERG , Isabelle CESTIER , Elad MENTOVICH , Timothy DE KEULENAER
CPC classification number: G02F1/035 , G02F1/0311 , G02F1/0316
Abstract: Systems and methods are described herein for an electro-absorption modulator (EAM) device. An example EAM device comprises an optical waveguide comprising a waveguide core configured to facilitate a propagation of an optical signal therethrough; a segmented traveling wave electrode structure comprising electrode segments disposed on the optical waveguide; and an electrical transmission line operatively coupled to the electrode segments via conducting bridges, wherein the electrical transmission line is configured to facilitate a propagation of an electrical signal therethrough, wherein the electrode segments are configured to overcome bandwidth and extinction ratio constraints of a lumped EAM.
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公开(公告)号：US20240280844A1
公开(公告)日：2024-08-22
申请号：US18681149
申请日：2022-08-09
Applicant: Soreq Nuclear Research Center
Inventor： Neta Arad-Vosk , Bruno Sfez
CPC classification number: G02F1/0311 , G02B6/29395 , G02F2203/055
Abstract: A tunable optical filter includes a dispersive-collimating element, an electro-optical medium apparatus and a focusing-dispersive element such that the dispersive-collimating element assigns each beam wavelength to a particular spatial position, the beams being parallel to each other, the electro-optical medium apparatus changes the polarization state independently for each wavelength, and the focusing-dispersive element recombines the different wavelengths into one single beam.
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5.发明公开公开(公告)号：US20240255785A1
公开(公告)日：2024-08-01
申请号：US18564441
申请日：2022-01-31
Applicant: SUMITOMO OSAKA CEMENT CO., LTD.
Inventor： Kosuke OKAHASHI , Masayuki MOTOYA
CPC classification number: G02F1/0356 , G02F1/0311 , G02F1/0316
Abstract: An object of the present invention is to suppress deterioration in a drift characteristic by removing unnecessary light propagating through a substrate. Furthermore, an optical waveguide device that can also suppress a propagation loss of a high-frequency signal is provided. An optical waveguide device of the present invention is an optical waveguide device including an optical waveguide 10 formed on a substrate 1, and an electrode (SE1, GE1) disposed on the substrate, in which a first underlayer 21 of a first material formed on an upper surface of the substrate 1 and a second underlayer 20 of a second material different from the first material formed on an upper surface of the first underlayer are disposed in at least a part of a region on the substrate in which the electrode is formed, and the electrode is formed on an upper side of the second underlayer.
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Patent Agency Ranking
公开(公告)号：US20240248330A1
公开(公告)日：2024-07-25
申请号：US18497521
申请日：2023-10-30
Applicant: FUJITSU OPTICAL COMPONENTS LIMITED
Inventor： Masaki SUGIYAMA
CPC classification number: G02F1/025 , G02F1/0311 , G02F1/0316 , G02F2201/063
Abstract: An optical device includes a rib optical waveguide formed on a substrate, a P doped region formed in one of slab regions of the rib optical waveguide, an N doped region formed in the other one of the slab regions of the rib optical waveguide, a first electrode connected to the P doped region, a second electrode connected to the N doped region, and an optical absorption structure. The optical absorption structure implements optical absorption of signal light passing through the rib optical waveguide according to an electric current that flows between the first electrode and the second electrode, and makes, in the optical absorption, the signal light passing through an optical input portion of the rib optical waveguide lower in optical attenuation rate than the signal light passing through at least part of the rib optical waveguide, the part excluding the optical input portion.
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公开(公告)号：US11891327B2
公开(公告)日：2024-02-06
申请号：US17816364
申请日：2022-07-29
Applicant: View, Inc.
IPC: G02F1/03 , G02F1/15 , G02F1/133 , G09G3/38 , C03C17/34 , C23C10/28 , C23C14/08 , C23C14/18 , C23C14/56 , C23C14/58 , G02F1/1524 , G02F1/1523
CPC classification number: C03C17/3417 , C23C10/28 , C23C14/08 , C23C14/083 , C23C14/185 , C23C14/568 , C23C14/5806 , C23C14/5853 , G02F1/1523 , G02F1/1524 , C03C2217/94
Abstract: Prior electrochromic devices frequently suffer from high levels of defectivity. The defects may be manifest as pin holes or spots where the electrochromic transition is impaired. This is unacceptable for many applications such as electrochromic architectural glass. Improved electrochromic devices with low defectivity can be fabricated by depositing certain layered components of the electrochromic device in a single integrated deposition system. While these layers are being deposited and/or treated on a substrate, for example a glass window, the substrate never leaves a controlled ambient environment, for example a low pressure controlled atmosphere having very low levels of particles. These layers may be deposited using physical vapor deposition. In certain embodiments, the device includes a counter electrode having an anodically coloring electrochromic material in combination with an additive.
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公开(公告)号：US11809028B2
公开(公告)日：2023-11-07
申请号：US18121739
申请日：2023-03-15
Applicant: II-VI Delaware, Inc.
Inventor： Ryan Davis , Wen-Qing Xu , Elgin Eissler , Fred Kropf
IPC: G02F1/1362 , G02F1/03 , G02F1/01
CPC classification number: G02F1/0316 , G02F1/0136 , G02F2202/101 , G02F2202/106
Abstract: A high-power electro-optic modulator (EOM) is formed to use specialized electrodes of a material selected to have a CTE that matches the CTE of the modulator's crystal. Providing CTE matching reduces the presence of stress-induced birefringence, which is known to cause unwanted modulation of the propagating optical signal. The specialized electrodes are preferably formed of a CuW metal matrix composite having a W/Cu ratio selected to create the matching CTE value. Advantageously, the CuW-based electrodes also exhibit a thermal conductivity about an order of magnitude greater than conventional electrode material (brass, Kovar) and thus provide additional thermal stability to the EOM's performance.
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公开(公告)号：US11803027B2
公开(公告)日：2023-10-31
申请号：US17138291
申请日：2020-12-30
Applicant: LG INNOTEK CO., LTD.
Inventor： Young Seop Moon
IPC: H03K17/00 , G02B7/09 , G02B3/14 , G05F1/59 , H02M3/07 , G02B26/08 , G02F1/03 , G02B7/02 , H04N23/00 , H04N23/60
CPC classification number: G02B7/09 , G02B3/14 , G02B7/02 , G02B26/08 , G02F1/03 , G05F1/59 , H02M3/07 , H03K17/005 , H04N23/00 , H04N23/60
Abstract: The present invention provides a circuit for controlling a voltage for driving liquid lens including a first voltage generator for outputting a first voltage; a second voltage generator for outputting a second voltage having an opposite polarity to the first voltage; a first switch for selecting one of the first voltage and a ground voltage, and transmitting the selected voltage; a second switch for selecting one of the second voltage and the ground voltage, and transmitting the selected voltage; and a third switch for selecting one of a voltage selected by the first switch and the voltage selected by the second switch, and transmitting the selected voltage, wherein the third switches is plural in number, and the first switch is connected in common to the plurality of third switches.
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10.发明公开公开(公告)号：US20230324724A1
公开(公告)日：2023-10-12
申请号：US18334838
申请日：2023-06-14
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Junghyun PARK , Yeonsang PARK , Sunil Kim , Duhyun LEE , Byunggil JEONG
CPC classification number: G02F1/0311 , G02F1/0147 , G02F1/0316 , G02B26/10 , G02F1/09 , G02F2201/346 , G02F2201/307
Abstract: Provided is a light modulator including a substrate, and a resonator configured to modulate a phase of incident light by modulating a refractive index based on an external stimulus, the resonator comprising a first reflective structure provided on the substrate, a cavity layer provided on the first reflective structure, and a second reflective structure provided on the cavity layer, wherein at least one of the first reflective structure or the second reflective structure comprises first material layers, second material layers that are alternately stacked with the first material layers, and a third material layer, and wherein each of the first material layers has a first refractive index, each of the second material layers has a second refractive index that is different from the first refractive index, and the third material layer has a third refractive index that is different from the first refractive index
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