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公开(公告)号：US20240302588A1
公开(公告)日：2024-09-12
申请号：US18667503
申请日：2024-05-17
Applicant: FURUKAWA ELECTRIC CO., LTD.
Inventor： Yusuke INABA , Junichi HASEGAWA , Maiko ARIGA , Kazuki YAMAOKA
IPC: G02B6/12 , G02B6/293 , G02B6/42 , H01S5/0239
CPC classification number: G02B6/12007 , G02B6/1203 , G02B6/29398 , G02B6/4228 , G02B6/4244 , G02B6/426 , H01S5/0239 , G02B6/29338 , G02B6/29352 , G02B6/4286
Abstract: An optical module includes: a substrate and a waveguide element having a mount face opposed to the substrate, the waveguide element having an interference waveguide portion having an optical interference function. Further, the mount face includes a projection region to which the interference waveguide portion is projected on the mount face and a non-projection region, and the waveguide element is joined to the substrate with a joint material in the non-projection region.
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公开(公告)号：US20160216451A1
公开(公告)日：2016-07-28
申请号：US15092170
申请日：2016-04-06
Applicant: FURUKAWA ELECTRIC CO., LTD.
Inventor： Junichi HASEGAWA , Kazutaka NARA
CPC classification number: G02B6/3544 , G02B6/29383 , G02B6/356 , G02F1/3136 , H04J14/0219 , H04Q11/0001 , H04Q11/0005 , H04Q2011/0015
Abstract: The present invention provides a switch device for an optical signal which has high extendibility and which can suppress an increase of loss in extension. A switch device in one embodiment of the present invention includes, in a housing, four splitter portions, four switch portions, and extension splitter portions. The splitter portions are connected to path-side ports, the switch portions are connected to client-side ports, and the splitter portions and the switch portions are connected to one another via shuffle fiber arrays. One ends of the extension splitter portions are connected to path-side extension ports, and the other ends thereof are connected to client-side extension ports. The number of wavelengths processable by the switch device can be easily changed by changing a connection state of optical fibers to the path-side ports, the client-side ports, the path-side extension ports, and the client-side extension ports.
Abstract translation: 本发明提供了一种光信号的开关装置，其具有高扩展性并且可以抑制扩展损耗的增加。 本发明的一个实施例中的开关装置在外壳中包括四个分离器部分，四个开关部分和延伸分离器部分。 分路器部分连接到路径侧端口，开关部分连接到客户端端口，分离器部分和开关部分通过混洗光纤阵列相互连接。 扩展分离部分的一端连接到路径侧扩展端口，其另一端连接到客户端扩展端口。 通过将光纤的连接状态改变为路径侧端口，客户侧端口，路径侧扩展端口和客户端侧扩展端口，可以容易地改变由开关装置可处理的波长的数量。
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公开(公告)号：US20210376570A1
公开(公告)日：2021-12-02
申请号：US17444871
申请日：2021-08-11
Applicant: FURUKAWA ELECTRIC CO., LTD.
Inventor： Junichi HASEGAWA , Noritaka MATSUBARA
Abstract: A ring-resonator filter device includes: a waveguide device that includes a core. Further, the core constitutes two ring resonator filters, each of the two ring resonator filters includes two arm portions, a ring-shaped portion, and two optical coupling/branching portions that optically couple the two arm portions and the ring-shaped portion, respectively, and the two ring-shaped portions cross each other.
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公开(公告)号：US20210364713A1
公开(公告)日：2021-11-25
申请号：US17391589
申请日：2021-08-02
Applicant: FURUKAWA ELECTRIC CO., LTD.
Inventor： Maiko ARIGA , Yusuke INABA , Kazuki YAMAOKA , Junichi HASEGAWA
IPC: G02B6/42
Abstract: An optical module includes: a base having a predetermined product of a coefficient of linear expansion and a Young's modulus; a planar lightwave circuit element mounted on the base; and a warpage suppression component, which is mounted on a surface of the planar lightwave circuit element, the surface being on a side opposite to a side where the planar lightwave circuit element is mounted on the base, having a product of a coefficient of linear expansion and a Young's modulus that reduces warpage of the planar lightwave circuit element in accordance with warpage of the base depending on temperature change.
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公开(公告)号：US20210362147A1
公开(公告)日：2021-11-25
申请号：US17397272
申请日：2021-08-09
Applicant: FURUKAWA ELECTRIC CO., LTD.
Inventor： Go KOBAYASHI , Junichi HASEGAWA , Noritaka MATSUBARA
IPC: B01L3/00
Abstract: A storage container includes: a substrate having a plurality of storage wells to store an object therein, the storage wells being formed on a predetermined substrate surface of the substrate. Further, the storage wells each includes an opening forming portion forming an opening portion opening on the substrate surface, and having an inclined surface that inclines from the substrate surface downward in a depth direction on an inner surface of the opening portion; and a bottomed storage portion that has a side wall surface extending in a direction perpendicular to the substrate surface on a lower side in the depth direction of the storage well relative to the opening forming portion, and that communicates with a region on the substrate surface through the opening portion, and a lower end of the inclined surface is connected to the side wall surface of the storage portion, forming a ridgeline.
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Patent Agency Ranking
公开(公告)号：US20200264374A1
公开(公告)日：2020-08-20
申请号：US16865616
申请日：2020-05-04
Applicant: FURUKAWA ELECTRIC CO., LTD.
Inventor： Junichi HASEGAWA
IPC: G02B6/27
Abstract: A light polarizing element include: a first port waveguide; two second port waveguides; and a multi-mode interference waveguide optically connected to the first port waveguide and the two second port waveguides, the multi-mode interference waveguide having at least one slit formed therein, the at least one slit having a shape that enables the multi-mode interference wave guide to give different effective refractive indexes to respective mutually orthogonal polarized light waves input from the first port waveguide, thereby separating the mutually orthogonal polarized light waves, and that enables the separated mutually orthogonal polarized light waves to be output from the respective two second port waveguides.
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公开(公告)号：US20230035065A1
公开(公告)日：2023-02-02
申请号：US17884875
申请日：2022-08-10
Applicant: FURUKAWA ELECTRIC CO., LTD.
Inventor： Noritaka MATSUBARA , Junichi HASEGAWA , Etsuji KATAYAMA , Tatsuro KUROBE
IPC: H01S5/023 , H01S5/02375 , G02B6/12
Abstract: A semiconductor optical device includes: a base configured to intersect with a first direction; a first protrusion configured to protrude from the base in the first direction, the first protrusion including a planar lightwave circuit including: a core layer; and a cladding layer surrounding the core layer; a second protrusion configured to protrude from the base in the first direction and arranged along the first protrusion in a second direction intersecting with the first direction, a height of the second protrusion from the base in the first direction being lower than a height of the first protrusion; an optical semiconductor element placed on a facet of the second protrusion in the first direction and optically connected to the core layer; and a marker provided on the second protrusion in a manner exposed on the facet, the marker being made of a same material as the core layer.
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公开(公告)号：US20160025930A1
公开(公告)日：2016-01-28
申请号：US14877605
申请日：2015-10-07
Applicant: FURUKAWA ELECTRIC CO., LTD.
Inventor： Junichi HASEGAWA , Noritaka MATSUBARA , Kazutaka NARA
CPC classification number: G02B6/29355 , G02B6/122 , G02B6/1223 , G02B6/29383 , G02B6/3546 , G02B2006/12145 , G02B2006/1215 , G02B2006/12159 , G02F1/3137 , G02F2001/212 , G02F2001/311
Abstract: An object of the present invention is to provide a switch unit for optical signals which is capable of reducing an area required for arrangement and reducing manufacturing costs, and a switch apparatus including the switch unit. A switch unit 30 according to one embodiment of the present invention includes two optical switch arrays 34a, 34b arranged to face in opposite directions and in parallel on a substrate. The two optical switch arrays extend along a surface of a chip, and each have four optical switches 31 arranged in parallel. Such a configuration makes it possible to reduce the size of the switch unit because in an excess region of one of the optical switch array, the other optical switch array is disposed.
Abstract translation: 本发明的目的是提供一种用于光信号的开关单元，其能够减少布置所需的面积并降低制造成本，以及包括开关单元的开关装置。 根据本发明的一个实施例的开关单元30包括两个光学开关阵列34a，34b，其布置为在基板上相反方向并且平行地面对。 两个光开关阵列沿着芯片的表面延伸，并且每个具有平行布置的四个光开关31。 这样的配置使得可以减小开关单元的尺寸，因为在另一个光开关阵列中的光开关阵列之一的多余区域中。
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公开(公告)号：US20210373234A1
公开(公告)日：2021-12-02
申请号：US17401175
申请日：2021-08-12
Applicant: FURUKAWA ELECTRIC CO., LTD.
Inventor： Noritaka MATSUBARA , Junichi HASEGAWA
Abstract: An optical waveguide circuit includes: a ring waveguide; an input connection waveguide; an output connection waveguide; and an optical multiplexing/demultiplexing part that optically connects the ring waveguide with the input connection waveguide, and that optically connects the ring waveguide with the output connection waveguide. Further, at least one of the input connection waveguide and the output connection waveguide includes a plurality of curved waveguides, a sum total of products of curvature signs and bending angles of the curved waveguides and a sum total of a curvature sign and a bending angle of the ring waveguide have a same absolute value with signs opposite to each other, and rotation of a polarization plane of light generated in the ring waveguide and rotation of a polarization plane of light generated in the curved waveguides cancel each other out.
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公开(公告)号：US20190033530A1
公开(公告)日：2019-01-31
申请号：US16145489
申请日：2018-09-28
Applicant: FURUKAWA ELECTRIC CO., LTD.
Inventor： Masanori TAKAHASHI , Yasuyoshi UCHIDA , Shintaro YAMASAKI , Junichi HASEGAWA
Abstract: An optical waveguide circuit device includes: an optical waveguide circuit including a cladding layer formed on a substrate and made from silica-based glass, and an optical waveguide formed within the cladding layer and made from silica-based glass; heaters formed over the cladding layer and the optical waveguide and configured to heat the optical waveguide; wiring line electrode layers formed over the cladding layer, each of the wiring line electrode layers being coupled to a corresponding heater of the heaters and configured to allow electrical power to be supplied to the coupled heater; and an insulating layer covering the cladding layer, the heaters, and the wiring line electrode layers. The wiring line electrode layers adjacent to each other in a plan view are formed in different wiring layers. The wiring line electrode layers adjacent to each other in the same wiring layer are spaced by at least a predetermined distance.
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