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公开(公告)号:US20150222967A1
公开(公告)日:2015-08-06
申请号:US14417604
申请日:2013-08-30
发明人: Kenya Suzuki , Yuzo Ishii , Koichi Hadama , Kazunori Seno
IPC分类号: H04Q11/00
CPC分类号: H04Q11/0003 , G02B6/3566 , H04Q11/0005 , H04Q2011/0024 , H04Q2011/0026 , H04Q2011/0035
摘要: An optical switch includes an input port, output ports, and a spatial light modulating section that receives an optical signal from the input port to deflect the optical signal to a selected one of the output ports. A phase distribution with the same radius of curvature as that of a wavefront of the optical signal and a phase distribution that allows the deflected optical signal to be coupled to the output port are set for the spatial light modulating section.
摘要翻译: 光开关包括输入端口,输出端口和空间光调制部分,其接收来自输入端口的光信号,以将光信号偏转到选定的一个输出端口。 对于空间光调制部分,设定具有与光信号的波前相同的曲率半径的相位分布和允许偏转的光信号耦合到输出端口的相位分布。
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公开(公告)号:US20140193114A1
公开(公告)日:2014-07-10
申请号:US14149386
申请日:2014-01-07
发明人: Naoki Ooba , Hiroshi Tomita , Kenji Kobayashi , Yuko Kawajiri , Kenya Suzuki
IPC分类号: G02B6/12
CPC分类号: G02B6/12 , G02B6/12004 , G02B6/122 , G02B6/30 , G02B6/42 , G02B6/4204 , G02B6/4239 , G02B6/4266 , G02B6/428
摘要: Provided is an optical module capable of inhibiting both the displacement of an optical axis caused by thermal changes and property degradation in an optical functional circuit. The optical module includes: a planar lightwave circuit including a waveguide-type optical functional circuit and a waveguide region where only an optical waveguide is formed in contact with a side, wherein an emission end face where output light is emitted from the optical functional circuit, or an entrance end face where input light is entered to the optical functional circuit is formed in contact with the side; a fixing mount employed to hold the planar lightwave circuit only in the portion where the waveguide area is located; and an auxiliary mount employed to hold the planar lightwave circuit in contact with a side that is opposite the side where the emission end face or the entrance end face.
摘要翻译: 提供一种光学模块,其能够抑制光学功能电路中的热变化和特性劣化引起的光轴位移。 光学模块包括:平面光波电路,其包括波导型光功能电路和仅形成与一侧接触的光波导的波导区域,其中从光功能电路发射输出光的发射端面, 或输入光入射到光功能电路的入射端面形成为与侧面接触; 用于仅将平面光波电路保持在波导区域所在的部分中的固定座; 以及用于保持平面光波回路与与发射端面或入射端面相对的一侧接触的辅助安装座。
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公开(公告)号:US11930309B2
公开(公告)日:2024-03-12
申请号:US17801446
申请日:2020-02-26
发明人: Keita Yamaguchi , Osamu Moriwaki , Shunichi Soma , Kenya Suzuki , Seiki Kuwabara , Tetsuro Inui , Shuto Yamamoto , Seiji Okamoto , Hideki Nishizawa
IPC分类号: H04Q11/00
CPC分类号: H04Q11/0005 , H04Q2011/0052
摘要: A photonics-electronics convergence switch with which, even if an optical network system is built by combining a plurality of packet switches, the amount of processing in the packet switches does not increase, the optical network system operates with low electric power consumption, and this enables wide-range optical communication between the nodes of a communication origin and of a communication partner, includes a network processor that is an electronic circuit configured to control the functions of the packet switch, a plurality of optical transmitter-receivers having photoelectric conversion functions, and a plurality of optical switches. Different types of optical switches cooperate to select a path through which inputted optical signals or optical signals inputted from a different packet switch connected to the packet switch are outputted to a different packet switch without passing through the processor and a path through which inputted optical signals or optical signals inputted from a different packet switch pass through the processor and are subjected to photoelectric conversion.
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公开(公告)号:US11835761B2
公开(公告)日:2023-12-05
申请号:US17420371
申请日:2020-01-08
发明人: Osamu Moriwaki , Kenya Suzuki , Takashi Go , Manabu Oguma , Yuichiro Ikuma
CPC分类号: G02B6/122 , G02B6/12007 , G02B2006/12104 , G02B2006/12164
摘要: The invention provides a planar optical waveguide circuit capable of preventing part of the input signal light that has not been combined in the waveguide and propagates as leaked light from interfering with the output signal. A planar optical waveguide circuit having an optical waveguide embedded in a cladding layer includes: a plurality of parallel output optical waveguides configured to emit light from a same end face; a groove having a reflective interface formed at an angle of +45 degrees relative to the output optical waveguides and configured to reflect leaked light propagating in the cladding layer; and a groove having a reflective interface formed at an angle of −45 degrees, the reflective interface formed at an angle of +45 degrees, the output optical waveguide, and the reflective interface formed at −45 degrees being arranged repeatedly in that order.
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55.
公开(公告)号:US20230259017A1
公开(公告)日:2023-08-17
申请号:US18040034
申请日:2020-08-05
发明人: Takashi Go , Ai Yanagihara , Keita Yamaguchi , Kenya Suzuki
CPC分类号: G03F1/42 , G03F9/7076 , G03F9/708 , G02B6/13
摘要: In an optical circuit divided into a plurality of partial circuits, an optical waveguide having a low optical loss at a connection portion is provided. A photomask in which a waveguide pattern of an optical circuit is divided into a plurality of regions and drawn, the photomask including a waveguide pattern for drawing a joint region in which a waveguide width changes as a waveguide goes toward an outer peripheral portion, to connect a plurality of the waveguides divided and drawn to each other, in which the waveguides are connected to each other by overlapping the joint regions of two of the photomasks and performing exposure.
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公开(公告)号:US20230244037A1
公开(公告)日:2023-08-03
申请号:US17794078
申请日:2020-01-24
发明人: Osamu Moriwaki , Kenya Suzuki
CPC分类号: G02B6/3596 , G02B6/43 , G02B6/4268 , G02B6/357
摘要: For waveguide type optical switch circuits, there is a problem in that both reduction in time required for switching and switching-back and reduction in power consumption cannot be achieved. One embodiment of a waveguide type optical switch circuit includes: a waveguide that has a clad layer stacked on a substrate and a waveguide core embedded in the clad layer; a heater that is formed on an upper surface of the clad layer above the waveguide core; and a groove that is obtained by removing the clad layer in a vertical direction of the substrate and has a surface parallel to a side surface of the waveguide core. A distance X between the waveguide core and the heater is designed to be equal to or greater than a distance Y between the heater and the groove (X≥Y)
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公开(公告)号:US11656405B2
公开(公告)日:2023-05-23
申请号:US17631794
申请日:2019-08-01
发明人: Manabu Oguma , Osamu Moriwaki , Kenya Suzuki
CPC分类号: G02B6/12011 , G02B6/12016 , G02B6/12019 , G02B6/29358 , G02B6/29361
摘要: Provided is an optical wavelength multi/demultiplexing circuit with a high rectangular transmission loss spectrum that is able to secure loss flatness of a transmission band, maintain/reduce a guard bandwidth of wavelength channel spacing, and broaden a transmission bandwidth. The circuit uses a multimode waveguide for a connecting part between a field modulation device and an AWG. The field modulation device is constituted by a common input waveguide, an optical branching unit, optical delay lines, a multiplex interference unit, and a mode converter/multiplexer.
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公开(公告)号:US20230136142A1
公开(公告)日:2023-05-04
申请号:US17794526
申请日:2020-01-30
发明人: Osamu Moriwaki , Shunichi Soma , Keita Yamaguchi , Kenya Suzuki , Seiki Kuwabara , Tetsuro Inui , Shuto Yamamoto , Seiji Okamoto , Hideki Nishizawa
摘要: A high-performance optical and electronic integrated switch capable of effectively extending the transmission distance includes a network processor that controls the functions of the packet switch, a plurality of optical transceivers provided near the processor and having a photoelectric conversion function, and an optical relay switch. A plurality of optical waveguides are connected to the input and output sides of the optical relay switch. Each optical transceiver has a regeneration function that performs optical-electrical conversion on inputted optical signals, then turns back the converted signals, and performs signal conversion on them, and its input side is connected with a routing optical waveguide included in the optical waveguides on the output side of the switch and its output side is connected with a routing optical waveguide included in the optical waveguides on the input side of the switch. The optical waveguides include ones for connecting to an external communication counterpart.
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公开(公告)号:US20230060777A1
公开(公告)日:2023-03-02
申请号:US17801446
申请日:2020-02-26
发明人: Keita Yamaguchi , Osamu Moriwaki , Shunichi Soma , Kenya Suzuki , Seiki Kuwabara , Tetsuro Inui , Shuto Yamamoto , Seiji Okamoto , Hideki Nishizawa
IPC分类号: H04Q11/00
摘要: A photonics-electronics convergence switch with which, even if an optical network system is built by combining a plurality of packet switches, the amount of processing in the packet switches does not increase, the optical network system operates with low electric power consumption, and this enables wide-range optical communication between the nodes of a communication origin and of a communication partner, includes a network processor that is an electronic circuit configured to control the functions of the packet switch, a plurality of optical transmitter-receivers having photoelectric conversion functions, and a plurality of optical switches. Different types of optical switches cooperate to select a path through which inputted optical signals or optical signals inputted from a different packet switch connected to the packet switch are outputted to a different packet switch without passing through the processor and a path through which inputted optical signals or optical signals inputted from a different packet switch pass through the processor and are subjected to photoelectric conversion.
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公开(公告)号:US20220357601A1
公开(公告)日:2022-11-10
申请号:US17623507
申请日:2019-07-05
发明人: Ai Yanagihara , Kenya Suzuki , Takashi Go , Keita Yamaguchi
摘要: An optical switch is configured by providing a planar lightwave circuit layer on a top surface of a Si substrate. The circuit layer forms, on the top surface of the substrate, an optical waveguide including an underclad layer, an optical waveguide core, and an overclad layer. The optical waveguide is provided to have a structure configuring a Mach-Zehnder interferometer. A heater is provided at a position just above an arm of the core on the top surface of the clad layer, and power supply electric wires are electrically connected to both ends of the heater. In a local portion including an interface between the clad layer and the top surface of the substrate, trench structure portions as concave grooves are provided.
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