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公开(公告)号：US09612407B2
公开(公告)日：2017-04-04
申请号：US14777740
申请日：2014-03-05
Applicant: OPTOQUEST CO., LTD. , ADAMANT CO., LTD.
Inventor： Tetsuya Kobayashi , Haruyuki Endo , Kazuaki Ikegai , Isao Yamauchi
IPC: G02B6/38
CPC classification number: G02B6/3869 , G02B6/381 , G02B6/3877 , G02B6/3885
Abstract: An optical connector of the present invention includes a ferrule that holds a multicore fiber, and a plug frame equipping the ferrule housed therein. The ferrule has at least one flat surface on the outer circumferential surface thereof, and the plug frame has a plate spring structure to apply pressure on the flat surface. In the optical connector of the present invention, the plate spring structure is casted in the plug frame.
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公开(公告)号：US20240372311A1
公开(公告)日：2024-11-07
申请号：US18573138
申请日：2022-06-24
Applicant: KINKI UNIVERSITY , OPTOQUEST CO., LTD.
Inventor： Minoru YOSHIDA , Yuichi TAKUSHIMA , Shota SEKIGUCHI , Yoshiharu SUZUKI , Tadashi HAJIKANO , Xiaomin WANG
Abstract: An optical fiber output light source device includes an optical path that is obtained by joining a polarization maintaining amplifying optical fiber to a polarization maintaining dispersion compensating fiber, a single-polarization reflective polarizing beam splitter that is joined to one end of the optical path, a 90° polarization-rotating reflector that is joined to the other end of the optical path, a multiplexer that is inserted in the optical path, and a pumping light source that is joined to the multiplexer. An axis roll connection portion is provided in which a polarization axis of light returned from the single-polarization reflective polarizing beam splitter to the optical path is connected to a polarization maintaining axis of the optical path with a twisting angle therebetween at a predetermined angle.
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公开(公告)号：US20210341288A1
公开(公告)日：2021-11-04
申请号：US17261726
申请日：2019-07-17
Applicant: JAPAN AEROSPACE EXPLORATION AGENCY , OPTOQUEST CO., LTD.
Inventor： Shinji MITANI , Kenichiro NIGO , Tadahito MIZUTANI , Satoshi KARASAWA , Yusaku TOTTORI , Taketoshi TAKAHATA , Haruyuki ENDO , Yuichi TAKUSHIMA , Shigeru NAKAMURA
IPC: G01C19/72
Abstract: [Object] To provide an interferometric optical fiber gyroscope that can perform higher-accuracy measurement and can be produced at a low cost.
[Solving Means] An interferometric optical fiber gyroscope is an interferometric optical fiber gyroscope that detects angular velocity by optical interference between counterclockwise light and clockwise light. In such an interferometric optical fiber gyroscope that detects angular velocity by optical interference between counterclockwise light and clockwise light, the interferometric optical fiber gyroscope includes: a sensing coil mechanism including a multicore fiber that includes a plurality of transmission cores, and a multicore fiber optical path junction that optically couples at least a first transmission core and a second transmission core, of the plurality of transmission cores.-
Patent Agency Ranking
公开(公告)号：US20170045687A1
公开(公告)日：2017-02-16
申请号：US15306104
申请日：2015-04-06
Inventor： Yoshinari AWAJI , Tetsuya KOBAYASHI , Taketoshi TAKAHATA
CPC classification number: G02B6/14 , G02B6/02042 , G02B6/26 , G02B6/27 , G02B6/2808 , G02B6/2817 , G02B6/32 , H04B10/2581 , H04J14/04
Abstract: A device for coupling a multicore/multimode fiber that can transmit a large quantity of information. This multicore/multimode fiber coupling device has a first fiber group (11), a first light converging system (13), a first mode converter (15), a second fiber group (21), a second light converging system (23), and light converging system (33) for multicore fibers. By means of the first mode converter (15), light from the first fiber group (11) is subjected to mode conversion en masse. A space coupling system (33) for multicore fibers transmits light derived from the second fiber group (21) and light derived from the first fiber group (11) subjected to mode conversion to the multicore fibers (31).
Abstract translation: 用于耦合可以传输大量信息的多芯/多模光纤的装置。 该多芯/多模光纤耦合装置具有第一光纤组（11），第一聚光系统（13），第一模转换器（15），第二光纤组（21），第二光会聚系统（23） 和用于多芯纤维的聚光系统（33）。 通过第一模式转换器（15），来自第一光纤组（11）的光被大量模式转换。 用于多芯光纤的空间耦合系统（33）将来自第二光纤组（21）的光和经过模式转换的第一光纤组（11）的光透射到多芯光纤（31）。
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公开(公告)号：US20160259133A1
公开(公告)日：2016-09-08
申请号：US14777740
申请日：2014-03-05
Applicant: OPTOQUEST CO., LTD. , ADAMANT CO., LTD.
Inventor： Tetsuya Kobayashi , Haruyuki Endo , Kazuaki Ikegai , Isao Yamauchi
IPC: G02B6/38
CPC classification number: G02B6/3869 , G02B6/381 , G02B6/3877 , G02B6/3885
Abstract: [Problem] To provide a connector whereby rotation of a multicore fiber does not occur.[Solution] An optical connector (17) of the present invention includes a ferrule (13) that holds a multicore fiber (11), and a plug frame (15) equipping the ferrule (13) housed therein. The ferrule (13) has at least one flat surface (19) on the outer circumferential surface thereof, and the plug frame (15) has a plate spring structure (21) to apply pressure on the flat surface (19). In the optical connector (17) of the present invention, the plate spring structure (21) is casted in the plug frame (15).
Abstract translation: [问题]提供一种不会发生多芯光纤的旋转的连接器。 [解决方案]本发明的光连接器（17）包括保持多芯光纤（11）的套圈（13）和装在其中的套圈（13）的插头框架（15）。 套管13在其外周面上具有至少一个平坦面（19），并且插塞框架（15）具有平板弹簧结构（21），以在平坦表面（19）上施加压力。 在本发明的光连接器（17）中，板弹簧结构（21）被浇注在插头框架（15）中。
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公开(公告)号：US10686529B2
公开(公告)日：2020-06-16
申请号：US15779693
申请日：2016-10-14
Applicant: National University Corporation Hokkaido University , OPTOQUEST CO., LTD. , NATIONAL INSTITUTE OF INFORMATION AND COMMUNICATIONS TECHNOLOGY
Inventor： Atsushi Okamoto , Tomokazu Oda , Taketoshi Takahata , Shusaku Noda , Naoya Wada
IPC: H04B10/548 , H04B10/2581 , H04J14/02 , H04J14/04
Abstract: An optical communication system is arranged to bring out potential capabilities of mode-division multiplexing (MDM). The optical communication system includes a hologram medium in which holograms are multiplex-recorded so as to correspond to respective spatial modes of signal light transmitted by a multi-mode fiber (MMF). A phase plate modulates phases of the respective spatial modes so as to reduce a spatial overlap between the spatial modes, and is provided on a side of the hologram medium on which signal light enters the hologram medium.
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公开(公告)号：US20200014465A1
公开(公告)日：2020-01-09
申请号：US15779693
申请日：2016-10-14
Applicant: National University Corporation Hokkaido University , OPTOQUEST CO., LTD. , NATIONAL INSTITUTE OF INFORMATION AND COMMUNICATIONS TECHNOLOGY
Inventor： Atsushi Okamoto , Tomokazu Oda , Taketoshi Takahata , Shusaku Noda , Naoya Wada
IPC: H04B10/548 , H04B10/2581 , H04J14/04 , H04J14/02
Abstract: An object of the present invention is to bring out potential capabilities of mode-division multiplexing (MDM). An optical communication system includes a hologram medium (1) in which holograms are multiplex-recorded so as to correspond to respective spatial modes of signal light transmitted by a multi-mode fiber (MMF) (2). A phase plate (4) which modulates phases of the respective spatial modes so as to reduce a spatial overlap between the spatial modes is provided on a side of the hologram medium (1) on which side the signal light enters the hologram medium (1).
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公开(公告)号：US20180059240A1
公开(公告)日：2018-03-01
申请号：US15690202
申请日：2017-08-29
Applicant: WASEDA UNIVERSITY , OPTOQUEST CO., LTD
Inventor： Tetsuya KAWANISHI , Masaru FUKUMITSU
IPC: G01S13/93 , G08G1/16 , G01S13/86 , B60W30/095
CPC classification number: G01S13/931 , B60Q9/008 , B60W30/095 , B60W50/14 , G01S13/867 , G01S2013/9339 , G01S2013/9375 , G08G1/0962 , G08G1/166 , G08G1/167
Abstract: An extravisual obstacle detecting system includes: a radio wave receiving unit 15 configured to receives a radio wave from a radio wave source 13 attached to an object 11; one or a plurality of external sensors 19 attached to the vehicle 17 and configured to detect an external obstacle; an alarm generating unit 21 configured to generate a predetermined alarm, and, when the radio wave receiving unit 15 receives the radio wave from the object 11, and the external sensors 19 do not detect the object 11, the alarm generating unit 21 generates the first alarm.
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