公开(公告)号：US09294826B2

公开(公告)日：2016-03-22

申请号：US14376786

申请日：2013-02-05

申请人： NIPPON TELEGRAPH AND TELEPHONE CORPORATION ,  NTT Electronics Corporation

发明人： Tomoyoshi Kataoka ,  Mitsunori Fukutoku ,  Etsu Hashimoto ,  Akio Sahara ,  Norio Sato ,  Yosuke Takeuchi

IPC分类号： H04J14/02 ,  H04Q11/00 ,  G02B26/08

CPC分类号： H04Q11/0005 ,  G02B26/0816 ,  H04J14/0212 ,  H04Q2011/0037

摘要： A wavelength selection switch system includes a wavelength selection switch including an input port and an output port, a nonvolatile memory in which configuration information for controlling an operation of the wavelength selection switch is stored, a high-speed memory in which reading and writing can be performed at a higher speed than in the nonvolatile memory and that stores a copy of the configuration information stored in the nonvolatile memory, and a control unit that controls an operation of the wavelength selection switch based on the configuration information read from the high-speed memory, wherein the control unit periodically reads the configuration information stored in the nonvolatile memory and writes a copy of the read configuration information to the high-speed memory.

摘要翻译： 波长选择开关系统包括：波长选择开关，包括输入端口和输出端口;非易失性存储器，其中存储用于控制波长选择开关的操作的配置信息;读取和写入可以是高速存储器 以比非易失性存储器更高的速度执行，并且存储存储在非易失性存储器中的配置信息的副本，以及控制单元，其基于从高速存储器读取的配置信息来控制波长选择开关的操作 其中，所述控制单元周期性地读取存储在所述非易失性存储器中的配置信息，并将所读取的配置信息的副本写入所述高速存储器。

公开(公告)号：US20150030327A1

公开(公告)日：2015-01-29

申请号：US14376786

申请日：2013-02-05

申请人： NIPPON TELEGRAPH AND TELEPHONE CORPORATION ,  NTT Electronics Corporation

发明人： Tomoyoshi Kataoka ,  Mitsunori Fukutoku ,  Etsu Hashimoto ,  Akio Sahara ,  Norio Sato ,  Yosuke Takeuchi

IPC分类号： H04Q11/00

CPC分类号： H04Q11/0005 ,  G02B26/0816 ,  H04J14/0212 ,  H04Q2011/0037

摘要： A wavelength selection switch system includes a wavelength selection switch including an input port and an output port, a nonvolatile memory in which configuration information for controlling an operation of the wavelength selection switch is stored, a high-speed memory in which reading and writing can be performed at a higher speed than in the nonvolatile memory and that stores a copy of the configuration information stored in the nonvolatile memory, and a control unit that controls an operation of the wavelength selection switch based on the configuration information read from the high-speed memory, wherein the control unit periodically reads the configuration information stored in the nonvolatile memory and writes a copy of the read configuration information to the high-speed memory.

摘要翻译： 波长选择开关系统包括：波长选择开关，包括输入端口和输出端口;非易失性存储器，其中存储用于控制波长选择开关的操作的配置信息;读取和写入可以是高速存储器 以比非易失性存储器更高的速度执行，并且存储存储在非易失性存储器中的配置信息的副本，以及控制单元，其基于从高速存储器读取的配置信息来控制波长选择开关的操作 其中，所述控制单元周期性地读取存储在所述非易失性存储器中的配置信息，并将所读取的配置信息的副本写入所述高速存储器。

公开(公告)号：US20230384542A1

公开(公告)日：2023-11-30

申请号：US18031859

申请日：2020-11-12

申请人： Nippon Telegraph and Telephone Corporation

发明人： Yohei Saito ,  Kota Shikama ,  Norio Sato

IPC分类号： G02B6/42

CPC分类号： G02B6/4243 ,  G02B6/4213

摘要： An optical connection structure includes an optical waveguide device that includes a substrate, a BOX layer, a first waveguide, and an overcladding in this order, an optical fiber disposed in a V-groove formed in the substrate, a self-forming waveguide disposed between an end face of the optical waveguide device and an end face of the optical fiber, and a cladding disposed around the self-forming waveguide. The optical fiber is positioned so that the end face of the optical fiber faces the end face of the optical waveguide device to cause signal light emitted from the optical fiber to enter the waveguide. The self-forming waveguide is formed with a portion cured by irradiation with resin curing light.

公开(公告)号：US20230049310A1

公开(公告)日：2023-02-16

申请号：US17796811

申请日：2020-02-10

申请人： Nippon Telegraph and Telephone Corporation

发明人： Yohei Saito ,  Kota Shikama ,  Norio Sato

IPC分类号： G02B6/122 ,  G02B6/13

摘要： An embodiment is an optical connection element including a first waveguide core and a second waveguide core on a substrate, the first waveguide core and the second waveguide core configured to propagate a signal light and a resin-curing light, and a mode field conversion portion provided at one end of the first waveguide core, wherein the second waveguide core covers at least the mode field conversion portion on the substrate, and a refractive index of the first waveguide core is higher than a refractive index of the second waveguide core.

公开(公告)号：US11789215B2

公开(公告)日：2023-10-17

申请号：US17620553

申请日：2019-06-25

申请人： Nippon Telegraph and Telephone Corporation

发明人： Norio Sato ,  Satoshi Shigematsu ,  Hiroshi Ishikawa ,  Kota Shikama ,  Atsushi Aratake

IPC分类号： G02B6/38 ,  G02B6/42 ,  G02B6/02 ,  G02B6/26

CPC分类号： G02B6/3886 ,  G02B6/4228 ,  G02B6/02052 ,  G02B6/262

摘要： An embodiment optical connector includes a fiber having a core through which light is guided and a magnet attached to one end of the fiber, and the magnet has an opening that exposes at least the end face of the core. An embodiment optical connection structure includes a first optical connector and a second optical connector, each including a fiber having a core through which light is guided and a magnet attached to one end of the fiber, wherein the magnets are magnetized so as to exert attraction on each other, and when the first optical connector and the second optical connector are mechanically connected by magnetic forces, the core of the first optical connector and the core of the second optical connector are optically connected through the opening of the magnet of the first optical connector and the opening of the magnet of the second optical connector.

公开(公告)号：US20230240001A1

公开(公告)日：2023-07-27

申请号：US18002605

申请日：2020-07-02

申请人： Nippon Telegraph and Telephone Corporation

发明人： Hitoshi Wakita ,  Norio Sato

IPC分类号： H05K1/02 ,  H05K1/11

CPC分类号： H05K1/0245 ,  H05K1/115 ,  H05K1/0222 ,  H05K2201/093

摘要： A wiring substrate is a wiring substrate including a plurality of differential pairs. Each of the differential pairs includes a first signal conductor, a first connection portion connected to the first signal conductor via a first via, a second signal conductor, and a second connection portion connected to the second signal conductor via a second via. The first signal conductor and the second signal conductor are arranged on different planes parallel to a bottom surface of the wiring substrate and overlap in a vertical direction. The first connection portion and the second connection portion are arranged on a top surface of the wiring substrate at a predetermined interval in a signal transmission direction. Adjacent differential pairs among the plurality of differential pairs are arranged at a predetermined interval in the signal transmission direction and at a predetermined interval in a direction perpendicular to the signal transmission direction.

公开(公告)号：US20230089592A1

公开(公告)日：2023-03-23

申请号：US17909037

申请日：2020-04-01

申请人： Nippon Telegraph and Telephone Corporation

发明人： Yohei Saito ,  Kota Shikama ,  Makoto Abe ,  Norio Sato

IPC分类号： G02B6/30

摘要： An optical connection element includes a first waveguide core and a second waveguide core above a substrate or a cladding and in which signal light and resin curing light propagate through the first waveguide core and the second waveguide core, the optical connection element including: an inter-core light coupling section in which a part of the first waveguide core and a part of the second waveguide core overlap in a perpendicular direction; and a resin curing light coupling section that couples resin curing light to the second waveguide core.

公开(公告)号：US20220357534A1

公开(公告)日：2022-11-10

申请号：US17775004

申请日：2019-11-13

申请人： Nippon Telegraph and Telephone Corporation

发明人： Takuya Tanaka ,  Makoto Abe ,  Kota Shikama ,  Takao Fukumitsu ,  Norio Sato ,  Atsushi Aratake

IPC分类号： G02B6/42

摘要： An optical element that is optically coupled to light inlet/outlet ends of an optical fiber is disposed on a base placed near the light inlet/outlet ends of the optical fiber. Moreover, a rod-like reinforcing member has an integral structure fixed into a first hole formed in the optical fiber and a second hole formed in the base 102.

公开(公告)号：US11828990B2

公开(公告)日：2023-11-28

申请号：US17772616

申请日：2019-11-28

申请人： Nippon Telegraph and Telephone Corporation

发明人： Kota Shikama ,  Norio Sato ,  Takeshi Sakamoto

IPC分类号： G02B6/38

CPC分类号： G02B6/3886

摘要： An optical connector of the present invention includes a ferrule accommodating optical fibers, a flange integrated with the ferrule, a sleeve in which a pair of the ferrules are accommodated, and a connection component which is provided around the sleeve and includes a magnet or a metallic magnetic material, wherein at least one of the connection component and the flange includes a magnet, and an attractive force acts on the connection component and the flanges, whereby cores of the opposing optical fibers come into close contact with each other. As a result, the optical connector of the present invention can provide the present physical contact connection and can provide a smaller optical connector.

公开(公告)号：US20220390679A1

公开(公告)日：2022-12-08

申请号：US17774980

申请日：2019-11-13

申请人： Nippon Telegraph and Telephone Corporation

发明人： Jun Endo ,  Norio Sato

IPC分类号： G02B6/32

摘要： A device includes a first lens), a second lens, and an adjustment platform. The first lens is arranged between a first end surface and a second end surface, and enlarges the mode field diameter of light that is guided through a first optical waveguide and is emitted from the first end surface. The second lens is arranged between the first lens and a second end surface, and collects light that has passed through the first lens. The first lens is mounted on the adjustment platform. The distance between the optical axis of the first optical waveguide and the principal point of the first lens is adjusted on a plane orthogonal to the optical axis of the first optical waveguide using the adjustment platform.