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公开(公告)号：US20240329298A1
公开(公告)日：2024-10-03
申请号：US18194779
申请日：2023-04-03
发明人： Wei-Kang Liu , Hau-Yan Lu , Ying Kit Felix Tsui
CPC分类号： G02B6/12002 , G02F1/025 , G02B2006/12135 , G02B2006/12176
摘要： An integrated chip including a base dielectric layer and a multi-tiered semiconductor waveguide layer over the base dielectric layer. The multi-tiered semiconductor waveguide layer has a first waveguide tier having a first width at a first height over the base dielectric layer. The multi-tiered semiconductor waveguide layer has a second waveguide tier having a second width, greater than the first width, at a second height, less than the first height, over the base dielectric layer. A cladding layer is over the multi-tiered semiconductor waveguide layer. A multi-tiered conductive heater layer is over the cladding layer. The multi-tiered conductive heater layer has a first heater tier over the first waveguide tier. The multi-tiered conductive heater layer has a pair of second heater tiers at the first height, over the second waveguide tier, and on opposite sides of the first waveguide tier.
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2.发明授权公开(公告)号：US12099266B2
公开(公告)日：2024-09-24
申请号：US17620007
申请日：2019-06-24
发明人： Kiyofumi Kikuchi , Ken Tsuzuki , Yusuke Nasu , Yuichiro Ikuma , Kotaro Takeda , Yuriko Kawamura
CPC分类号： G02F1/0147 , G02F1/025 , G02F1/212 , G02F1/2257
摘要： An optical circuit of the present disclosure shares at least a part of an electrical path including phase variable means between neighboring optical interference circuits, or configures an electrical path so as to straddle neighboring optical interference circuits, thereby performing electrical or thermal feedback. The optical circuit includes a mechanism using the electrical or thermal feedback for cancelling components of thermal crosstalk from one optical interference circuit to another neighboring optical interference circuit. The optical circuit of the present disclosure has a resistor element that shares electrical paths including respective phase variable means between the neighboring optical interference circuits. The optical circuit changes the phase change amount by the phase variable means in the neighboring optical interference circuit, in such a way as to cancel the thermal crosstalk components by the resistor element.
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公开(公告)号：US12019318B2
公开(公告)日：2024-06-25
申请号：US18223619
申请日：2023-07-19
CPC分类号： G02F1/025 , G02B6/122 , G02B2006/12061 , G02B2006/12097
摘要： Optical waveguides may include a substrate and a silicon based optical waveguide supported on the substrate. The silicon based optical waveguide may include a central ridge portion and a plurality of spaced apart wing portions connected through connecting portions. The number of wing portions may be greater than two. The central ridge portion may have a central ridge lateral width extent greater than a lateral width extent of at least one of the wing portions. Optical waveguides may include a substrate, a silicon based optical waveguide supported on the substrate, and a concentrator supported on the substrate and positioned within a lateral width extent of the silicon based optical waveguide and outside of a height extent of the silicon based optical waveguide. The optical waveguides may be included as part of an optical modulator.
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4.发明公开公开(公告)号：US20240176172A1
公开(公告)日：2024-05-30
申请号：US18434059
申请日：2024-02-06
申请人： II-VI Delaware, Inc.
发明人： Andrei Kaikkonen , David Adams , Robert Lewen , Nicolae Chitica
CPC分类号： G02F1/025 , H01S5/0601 , G02F1/0157 , G02F2202/101 , G02F2202/102 , G02F2202/108
摘要： An electro-absorption modulator (EAM) is configured to include an on-chip AC ground plane that is used to terminate the high frequency RF input signal within the chip itself. This on-chip ground termination of the modulation input signal improves the frequency response of the EAM, which is an important feature when the EAM needs to support data rates in excess of 50 Gbd. By virtue of using an on-chip ground for the very high frequency signal content, it is possible to use less expensive off-chip components to address the lower frequency range of the data signal (i.e., for frequencies less than about 1 GHz).
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公开(公告)号：US11988939B2
公开(公告)日：2024-05-21
申请号：US17590909
申请日：2022-02-02
发明人： Andreas Mai , Patrick Steglich , Christian Mai
CPC分类号： G02F1/2257 , G02F1/0027 , G02F1/025 , G02F1/035 , G02B2006/12097 , G02B6/136 , G02F2201/122
摘要： The present invention relates to producing an electro-optical phase shifter such that it may be integrated into a front-end of line of an electronic-photonic integrated circuit. A conducting bottom layer with a first refractive index is provided. A center layer including a ferroelectric material and with a second refractive index is provided on top of a first region of the conducting bottom layer, such that the center layer is not on top of a second region of the conducting bottom layer. A conducting top layer with a third refractive index is provided on top of the center layer. The second refractive index is lower than the first refractive index and lower than the third refractive index, such that the conducting bottom layer, the center layer, and the conducting top layer form a slot waveguide. A first electrical connector which connects the second region of the conducting bottom layer with an upper layer is provided. Additionally, a second electrical connector which connects the conducting top layer with the upper layer is provided. A first electrode and a second electrode are provided in the upper layer such that the first electrode connects to the second region of the conducting bottom layer via the first electrical connector and the second electrode connects to the conducting top layer via the second electrical connector.
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公开(公告)号：US11934051B2
公开(公告)日：2024-03-19
申请号：US18125165
申请日：2023-03-23
发明人： Kevin K. Dezfulian
IPC分类号： G02F1/025
CPC分类号： G02F1/025 , G02F2203/50
摘要： Structures including an electro-optical phase shifter and methods of fabricating a structure including an electro-optical phase shifter. The structure includes a waveguide core on a semiconductor substrate, and an interconnect structure over the waveguide core and the semiconductor substrate. The waveguide core includes a phase shifter, and the interconnect structure includes a slotted shield and a transmission line coupled to the phase shifter. The slotted shield includes segments that are separated by slots. The slotted shield is positioned between the transmission line and the substrate.
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公开(公告)号：US20240077755A1
公开(公告)日：2024-03-07
申请号：US18139996
申请日：2023-04-27
申请人： Lightelligence, Inc.
发明人： Huaiyu Meng , Cheng-Kuan Lu , Jonathan Terry , Jingdong Deng , Maurice Steinman , Gilbert Hendry , Yichen Shen
CPC分类号： G02F1/0121 , G02F1/025
摘要： An integrated circuit interposer includes a semiconductor substrate layer; a first metal contact layer including a first metal contact section that includes metal contacts arranged for electrically coupling to a first semiconductor die in a controlled collapsed chip connection, and a second metal contact section that includes metal contacts arranged for electrically coupling to a second semiconductor die in a controlled collapsed chip connection. A first patterned layer includes individually photomask patterned metal path sections. A second patterned layer includes individually photomask patterned waveguide sections, including a first waveguide that crosses at least one boundary between individually photomask patterned waveguide sections. A first modulator is coupled to the first waveguide for modulating an optical wave in the first waveguide based on an electrical signal received at a first metal contact in the first metal contact section, and a second modulator is coupled to the first waveguide for modulating the optical wave based on an electrical signal received at a second metal contact in the first metal contact section or the second metal contact section
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公开(公告)号：US11874540B2
公开(公告)日：2024-01-16
申请号：US17587679
申请日：2022-01-28
发明人： Weiwei Zhang , Graham Reed , David Thomson , Martin Ebert , Shinichi Saito
IPC分类号： G02F1/025
CPC分类号： G02F1/025 , G02F2202/06
摘要： A resonator modulator for modulating light in a photonic circuit, the modulator comprising: a capacitor formed of a ring-shaped insulating region sandwiched between an outer conductive region and an inner conductive region, wherein at least one of the outer conductive regions or the inner conductive regions is a polycrystalline semiconductor material.
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公开(公告)号：US11809060B2
公开(公告)日：2023-11-07
申请号：US16964782
申请日：2019-01-24
申请人： Robert Bosch GmbH
CPC分类号： G02F1/2955 , G02F1/025
摘要： A phase-shifter for a light-transmitting waveguide is segmented into multiple segments that can be calibrated to the overall length of a conventional single phase-shifter. Each segment receives a control signal, which can be a single bit signal, with the phase-shift capability of the segmented phase-shifter controlled by which segment(s) receive(s) a control signal. In one implementation, a binary weighting is applied to determine segment lengths. Smaller segments can be increased in length to achieve a 2π offset of the phase shift produced by the segment while maintaining the same binary relationship among segments. In another embodiment, multiple segments of uniform lengths can be used for a single phase-shifter with each segment controlled by an n-bit signal.
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公开(公告)号：US11796841B1
公开(公告)日：2023-10-24
申请号：US17210833
申请日：2021-03-24
CPC分类号： G02F1/0147 , G02F1/025
摘要： A thermally tunable microresonator device with enhanced thermal confinement for greater efficiency is provided. A thermal confinement structure is electrically connected in series with the heater element used for tuning the microresonator. The heater element is conformed in a circular arc concentric with the microresonator, the thermal confinement structure comprises two or more tiers, and each tier comprises at least one metal trace conformed in a circular arc concentric with the microresonator.
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