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公开(公告)号：US20240126107A1
公开(公告)日：2024-04-18
申请号：US17967159
申请日：2022-10-17
Inventor： Zhirong Tang , Oleg Martynov , Edward Preisler
CPC classification number: G02F1/0147 , H05B3/143
Abstract: A semiconductor structure has a substrate and a thermally-tunable photonics device in or over the substrate. A tantalum nitride (TaN) resistive heater is over the substrate and proximate to the thermally-tunable photonics device. The TaN resistive heater is configured to tune the thermally-tunable photonics device.
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公开(公告)号：US20240077757A1
公开(公告)日：2024-03-07
申请号：US17767393
申请日：2020-10-02
Applicant: USTAV FOTONIKY A ELEKTRONIKY AV CR, V. V. I.
Inventor： Marek PILIARIK , Hadrien Marc Louis ROBERT
CPC classification number: G02F1/0147 , G02F1/0126 , G02F1/292
Abstract: A spatial light modulator having a layer of thermo-optical medium, where the thermo-optical medium is at least partially transparent for at least one spectral component of visible or near infrared light and having the thermal conductivity between 0.01 and 30 W K−1 m−1 at the temperature of 20° C. and the layer having a thickness up to 100 μm is disclosed. At least one heating microsource in thermal contact with the layer of the thermo-optical medium, where each heating microsource has at least one dimension smaller than 10 μm, and at least one substrate in thermal contact with the thermo-optical medium, the substrate having a thermo-optic coefficient at least 10 times smaller than a thermo-optic coefficient of the thermo-optical medium and a thermal conductivity of at least 1 W K−1 m−1 while the thermal conductivity of the substrate is higher than the thermal conductivity of the thermo-optical medium.
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公开(公告)号：US11914264B2
公开(公告)日：2024-02-27
申请号：US17065118
申请日：2020-10-07
Applicant: OpenLight Photonics, Inc.
Inventor： John Parker , Jonathan Edgar Roth , Gregory Alan Fish
CPC classification number: G02F1/2257 , G02F1/0147 , G02F1/025 , G02F1/3135 , G02F2203/15
Abstract: Photonic ring modulators with high tuning efficiency and small footprint can be formed in a hybrid material platform from a silicon bus waveguide vertically coupled to an optically active compound semiconductor (e.g., III-V) ring resonator. The performance of the modulator, e.g., in terms of the tuning efficiency and the maximum insertion loss, may be optimized by suitable levels of an applied bias voltage and a heater power of a heater optionally included in the ring modulator. The disclosed hybrid photonic ring modulators may be used, e.g., in photonic transceiver circuits with high lane count.
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公开(公告)号：US20240042485A1
公开(公告)日：2024-02-08
申请号：US18304794
申请日：2023-04-21
Inventor： Taejong PAIK , Yoonjoo CHOI
CPC classification number: B05D5/066 , G02F1/0147
Abstract: Disclosed are a method for manufacturing a thermochromic film, a thermochromic film manufactured using the same, and a smart window including the thermochromic film. The method for manufacturing the thermochromic film includes a first step of forming a metal thin-film on a substrate; and a second step including: heating a first solution containing a vanadium dioxide precursor to perform hydrothermal synthesis of vanadium dioxide; dispersing the synthesized vanadium dioxide in a solvent to prepare ink; and applying the ink onto a surface of the metal thin-film formed on the substrate to coat vanadium dioxide on the metal thin-film.
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公开(公告)号：US11860509B2
公开(公告)日：2024-01-02
申请号：US17505486
申请日：2021-10-19
Applicant: HEWLETT PACKARD ENTERPRISE DEVELOPMENT LP
Inventor： Mir Ashkan Seyedi
IPC: G02F3/00 , G02B6/12 , G02F1/01 , G02F1/025 , G02F3/02 , G02F1/35 , G02B6/293 , G02B6/42 , G02B6/28
CPC classification number: G02F3/00 , G02B6/12 , G02B6/12007 , G02B6/29338 , G02F1/0113 , G02F1/0147 , G02F1/025 , G02F1/3515 , G02F3/024 , G02B6/28 , G02B6/4266 , G02B2006/12061
Abstract: An optical logic gate decision-making circuit that combines non-linear materials, such as silicon nitride, on a silicon-on-insulator (SOI) substrate is described. Circuitry includes a ring cavity coupled to an input optical bus waveguide. The input optical bus waveguide receives an optical signal and passes the optical signal to the ring cavity. An electro-optical device, for instance a PN junction, is integrated within the ring cavity to modulate the optical signal such that an optical logic gate function is enabled. An output optical bus waveguide is also coupled to the ring cavity, which outputs the optical signal modified based on the optical logic gate function and based on a wavelength routing function. By using silicon nitride, the optical non-linearity of the materials enables an “all-optical” logic gate. Thus, the optical logic gate decision-making circuit is suitable for all-optical circuits, and support ultrafast optical signal processing and enabling packet switching of data.
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Patent Agency Ranking
公开(公告)号：US20230314849A1
公开(公告)日：2023-10-05
申请号：US17710703
申请日：2022-03-31
Applicant: Intel Corporation
Inventor： Chia-Pin CHIU , Kaveh HOSSEINI , Omkar KARHADE , Tim Tri HOANG
CPC classification number: G02F1/0147 , G02B6/29395 , G02B6/2934 , G02F2203/15
Abstract: Embodiments disclosed herein include optoelectronic systems and methods of forming such systems. In an embodiment, an optoelectronic system comprises a first substrate, a second substrate over the first substrate, a micro-ring resonator (MRR) over the second substrate, a heater integrated into the MRR, a cladding over the MRR, an opening through the first substrate and the second substrate to expose a bottom surface of the MRR, and a base spanning across the opening.
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公开(公告)号：US20230258965A1
公开(公告)日：2023-08-17
申请号：US18015022
申请日：2021-07-09
Applicant: NATIONAL UNIVERSITY OF SINGAPORE
Inventor： Chao WANG , Gong ZHANG , Ci Wen LIM
IPC: G02F1/01 , H04B10/291
CPC classification number: G02F1/0147 , H04B10/2912
Abstract: An optical power limiter, a method of fabricating the optical power limiter, a method of limiting optical power, a method of upper bounding information leakage in quantum cryptography, and a quantum cryptography system. The optical power limiter comprises an optical input port; an optical output port; an effective medium disposed between the input port and the output port; and a diaphragm disposed between the effective medium and the output port; wherein the effective medium has a thermo-optic coefficient such that a light beam entering the effective medium from the direction of the input port experiences a refractive index gradient in a direction perpendicular to a propagation direction in the effective medium as a result of absorption; and wherein the diaphragm is disposed in a path of the light beam for limiting how much of the light beam reaches the output port.
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公开(公告)号：US11714299B2
公开(公告)日：2023-08-01
申请号：US17556006
申请日：2021-12-20
Inventor： Shih-Wei Lin , Ming Chyi Liu
CPC classification number: G02F1/011 , G02F1/0147 , G02F1/2257 , G02B2006/12142 , G02F2203/50
Abstract: Various embodiments of the present disclosure are directed towards an integrated chip including a waveguide and a heater structure. The waveguide is disposed on a substrate and comprises an active region that extends continuously along a first distance. The heater structure overlies the waveguide. The heater structure comprises a conductive structure over the active region and a vertical structure disposed between the conductive structure and the substrate. The vertical structure comprises a conductive upper vertical segment and a lower vertical segment. The conductive structure and the conductive upper vertical segment continuously laterally extend across a second distance that is greater than or equal to the first distance. The first distance is greater than a width of the conductive structure.
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公开(公告)号：US20190185742A1
公开(公告)日：2019-06-20
申请号：US16222424
申请日：2018-12-17
Applicant: E Ink Corporation
Inventor： Peter Carsten Bailey WIDGER , Jay William ANSETH , Richard J. PAOLINI, JR. , Craig Alan BREEN , Wesley VIOLA
CPC classification number: C09K9/02 , G02F1/0147
Abstract: A variable opacity material is provided that may be in the form of a mixture, such as an emulsion that contains a discontinuous aqueous polymeric solution having an LCST of 0 to 100° C. and a continuous phase containing a hydrophobic polymer, such as a polysiloxane. One or more salts, such as lithium bromide and sodium chloride, may be added to the aqueous solution to lower the LCST of the aqueous solution and to raise the refractive index of the aqueous polymeric solution to substantially match the refractive index of the hydrophobic polymer. The variable opacity materials may be applied in the form of a film to various substrates, such as glass.
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公开(公告)号：US20180353802A1
公开(公告)日：2018-12-13
申请号：US15998502
申请日：2018-08-16
Applicant: Grounding Inc.
Inventor： Victor Tsai
CPC classification number: A63B21/4037 , A63B2071/0694 , A63B2209/00 , B32B3/26 , B32B25/10 , B32B25/20 , B32B2307/744 , B32B2471/04 , G02F1/0147
Abstract: A sporting towel mat for use on a support surface includes a fabric layer defining a first surface and a second surface, and only one single first anti-slip strip and only one single second anti-slip strip having a predetermined with and being attached on the first surface and the second surface respectively. The first anti-slip strip and the second anti-slip strip covers the first surface and second surface of the fabric towel incompletely so that the first surface and the second surface of the fabric towel has at least one part thereof exposed to form at least one first exposed part and at least one second exposed part respectively. The fabric towel is foldable with said first anti-slip strip and said second anti-slip strip.
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