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1. 发明公开

US20240168222A1 OPTICAL WAVEGUIDE PRODUCTION METHOD AND OPTICAL WAVEGUIDE 审中-公开
公开(公告)号：US20240168222A1
公开(公告)日：2024-05-23
申请号：US18281788
申请日：2022-05-27
申请人： SUMITOMO ELECTRIC INDUSTRIES, LTD.
发明人： Tetsuya NAKANISHI , Manabu SHIOZAKI , Shigehiro NAGANO , Hajime ARAO
IPC分类号： G02B6/12
CPC分类号： G02B6/12007 , G02B6/12002 , G02B2006/12171
摘要： An optical waveguide manufacturing method according to one embodiment is an optical waveguide manufacturing method by irradiating glass with femtosecond laser beam to form an optical waveguide. The optical waveguide manufacturing method includes a first process of irradiating the glass with the femtosecond laser beam having a pulse width of 300 (fs) or less and a repetition frequency of 700 (kHz) or less while relatively moving the glass and a focal position of the femtosecond laser beam and a second process of irradiating an increased refractive index portion with a femtosecond laser beam having a pulse width of 300 (fs) or less and a repetition frequency higher than 700 (kHz).

2. 发明公开

US20230375792A1 OPTICAL CONNECTION STRUCTURE 审中-公开
公开(公告)号：US20230375792A1
公开(公告)日：2023-11-23
申请号：US18030523
申请日：2021-12-20
申请人： SUMITOMO ELECTRIC INDUSTRIES, LTD.
发明人： Tsutaru KUMAGAI , Tetsuya NAKANISHI , Hajime ARAO , Yuuichi MITOSE
IPC分类号： G02B6/42 , G02B6/44
CPC分类号： G02B6/4243 , G02B6/4239 , G02B6/4249 , G02B6/4214 , G02B6/4403 , G02B6/4266
摘要： The optical connection structure includes: optical fibers disposed such that end faces are arranged in a first direction; an optical functional component having a first surface facing the end faces of the optical fibers; a holding member having a second surface facing the first surface and directly or indirectly fixed to the first surface, a third surface facing away from the second surface, and a fiber holding holes extending from the third surface toward the second surface and respectively accommodating the optical fibers; and a distortion suppression member having a fourth surface facing the third surface and directly or indirectly fixed to the third surface and sandwiching the holding member with the optical functional component. Thermal expansion coefficients of the optical functional component and the distortion suppression member are higher or lower than a thermal expansion coefficient of the holding member.

3. 发明公开

US20230288643A1 OPTICAL WIRING AND OPTICAL CONNECTION METHOD 审中-公开
公开(公告)号：US20230288643A1
公开(公告)日：2023-09-14
申请号：US18020164
申请日：2021-09-13
申请人： SUMITOMO ELECTRIC INDUSTRIES, LTD. , SUMITOMO ELECTRIC OPTIFRONTIER CO., LTD.
发明人： Tetsuya NAKANISHI , Masahiro SHIBATA , Atsushi KATAOKA
IPC分类号： G02B6/38
CPC分类号： G02B6/3825 , G02B6/3881 , G02B6/3893 , G02B6/3877
摘要： An optical wiring includes a plurality of first set groups each including a plurality of first connecting components, a plurality of second set groups each including a plurality of second connecting components, and a receptacle which has a first end face and a second end face on an opposite side of the first end face. The first set groups are connected to the first end face side and the second set groups are connected to the second end face side. The first set groups faces the second set groups through the receptacle such that a direction in which the first connecting components are arranged and a direction in which the second connecting components are arranged are perpendicular to each other, and each of the first connecting components is optically connected to a corresponding one of the second connecting components in the receptacle.

4. 发明申请

US20190293877A1 OPTICAL CONNECTION COMPONENT 审中-公开
公开(公告)号：US20190293877A1
公开(公告)日：2019-09-26
申请号：US16439839
申请日：2019-06-13
申请人： SUMITOMO ELECTRIC INDUSTRIES, LTD.
发明人： Naoki MATSUSHITA , Tetsuya NAKANISHI , Toshiki TARU
IPC分类号： G02B6/42 , G02B6/245
摘要： An optical connection component 1 includes an optical fiber 10 having a bent portion BA, and a fiber fixing part 20. The optical fiber 10 includes a glass fiber 11 and a resin coating 12. The fiber fixing part 20 includes an optical array member 24 and a protective resin 23. A distal end of the glass fiber 11 and an end surface of the optical array member 24 form a reference surface S. The bent portion BA is formed in a region including the exposed glass fiber 11. A predetermined section in a region C, which continues from the bent portion BA on a 10 side opposite to an end portion of the optical fiber 10 supported by the fiber fixing part 20 with the bent portion BA interposed therebetween, is inclined to approach the reference surface S while going away from the bent portion BA.

5. 发明申请

US20190101704A1 OPTICAL CONNECTOR AND OPTICAL CONNECTION STRUCTURE 审中-公开
公开(公告)号：US20190101704A1
公开(公告)日：2019-04-04
申请号：US16149343
申请日：2018-10-02
申请人： SUMITOMO ELECTRIC INDUSTRIES, LTD.
发明人： Tetsu MORISHIMA , Tetsuya NAKANISHI
IPC分类号： G02B6/38 , G02B6/02
CPC分类号： G02B6/3825 , G02B6/02395 , G02B6/3821 , G02B6/3851 , G02B6/3854 , G02B6/3869 , G02B6/387 , G02B6/3877 , G02B6/3885
摘要： An optical connector includes an optical fiber including a glass fiber and a resin coating surrounding the glass fiber; a ferrule having a flange outside the ferrule and holding, inside the ferrule, a portion of the glass fiber exposed from the resin coating at an end of the optical fiber; a plug frame accommodating the ferrule; and an elastic member abutting the flange and biasing the ferrule forward in an optical axis direction of the optical fiber to retain the ferrule inside the plug frame. The flange and the plug frame have a protrusion and a recess that allow the flange and the plug frame to be fitted to each other at the predetermined position. When the ferrule is moved rearward in the optical axis direction, the protrusion and the recess are released from each other to bring the ferrule into a floating state relative to the plug frame.

6. 发明申请

US20160223761A1 METHOD FOR MANUFACTURING OPTICAL MODULE 有权
标题翻译：制造光学模块的方法
公开(公告)号：US20160223761A1
公开(公告)日：2016-08-04
申请号：US15097825
申请日：2016-04-13
申请人： SUMITOMO ELECTRIC INDUSTRIES, LTD.
发明人： Tetsuya NAKANISHI , Takashi SASAKI , Yasuomi KANEUCHI , Tetsuya HAYASHI , Osamu SHIMAKAWA
IPC分类号： G02B6/38
CPC分类号： G02B6/3885 , G02B6/02042 , G02B6/3843 , G02B6/3871 , G02B6/4403
摘要： An embodiment relates to a method for manufacturing an optical module having an MCF and two connection components, and enables rotational alignment of the MCF to be implemented with high accuracy even in short-haul optical wiring. The MCF is arranged in a region between the two connection components while an end thereof projects from one connection component. As this arrangement state is maintained, array positions of cores in the projecting end are observed from a side face and the MCF is rotationally aligned by a rotation grasp jig grasping the projecting end to adjust the array positions of the cores, based on the observation result.
摘要翻译：一个实施例涉及一种用于制造具有MCF和两个连接部件的光学模块的方法，并且即使在短距离光学布线中也能够以高精度实现MCF的旋转对准。 MCF布置在两个连接部件之间的区域中，而其一端从一个连接部件突出。由于保持这种布置状态，从侧面观察突出端的芯的阵列位置，并且通过抓握突出端的旋转抓取夹具旋转对准MCF，以基于观察结果来调整芯的阵列位置。

7. 发明申请

US20150160410A1 OPTICAL FIBER 有权
标题翻译：光纤
公开(公告)号：US20150160410A1
公开(公告)日：2015-06-11
申请号：US14628077
申请日：2015-02-20
申请人： SUMITOMO ELECTRIC INDUSTRIES, LTD.
发明人： Tetsuya NAKANISHI , Tatsuya KONISHI , Kazuya KUWAHARA
IPC分类号： G02B6/036
CPC分类号： G02B6/036 , C03B37/027 , C03B37/02718 , C03B2201/02 , C03B2201/12 , C03B2201/20 , C03B2201/31 , C03B2203/22 , G02B6/02395 , G02B6/03694
摘要： An inexpensive low-attenuation optical fiber 1 suitable for use as an optical transmission line in an optical access network is a silica based glass optical fiber and includes a core 11 including the center axis, an optical cladding 12 surrounding the core, and a jacket 13 surrounding the optical cladding. The core contains GeO2 and has a relative refractive index difference Δcore, based on the optical cladding, greater than or equal to 0.35% and less than or equal to 0.50% and has a refractive index volume v greater than or equal to 0.045 μm2 and less than or equal to 0.095 μm2. The jacket has a relative refractive index difference ΔJ greater than or equal to 0.03% and less than or equal to 0.20%. Glass constituting the core has a fictive temperature higher than or equal to 1400° C. and lower than or equal to 1590° C. Residual stress in the core is compressive stress that has an absolute value greater than or equal to 5 MPa.
摘要翻译：适合用作光接入网络中的光传输线的便宜的低衰减光纤1是二氧化硅基玻璃光纤，并且包括包括中心轴的芯11，围绕芯的光学包层12和外壳13 围绕光学包层。芯包含GeO 2，并且具有基于光学包层的相对折射率差＆Dgr芯，大于或等于0.35％且小于或等于0.50％，并且具有大于或等于0.045μm2的折射率体积v 小于或等于0.095μm2。护套的相对折射率差Dgr; J大于或等于0.03％且小于或等于0.20％。构成芯的玻璃具有高于或等于1400℃且低于或等于1590℃的假想温度。芯中的残余应力是绝对值大于或等于5MPa的压应力。

8. 发明申请

US20130148934A1 OPTICAL FIBER, OPTICAL TRANSMISSION SYSTEM, AND METHOD OF MAKING OPTICAL FIBER 有权
标题翻译：光纤，光传输系统和制造光纤的方法
公开(公告)号：US20130148934A1
公开(公告)日：2013-06-13
申请号：US13706458
申请日：2012-12-06
申请人： SUMITOMO ELECTRIC INDUSTRIES, LTD.
发明人： Tetsuya NAKANISHI , Tatsuya KONISHI , Kazuya KUWAHARA
IPC分类号： G02B6/028 , C03B37/027
CPC分类号： G02B6/028 , C03B37/02718 , C03B37/02727 , C03B2201/075 , C03B2201/12 , C03B2201/23 , C03B2205/56 , C03C13/045 , C03C13/046
摘要： Provided is an inexpensive low-loss optical fiber suitably used in an optical transmission network. An optical fiber includes a core, an optical cladding, and a jacket. The core has a relative refractive index difference between 0.2% and 0.32% and has a refractive index volume between 9%·μm2 and 18%·μm2. The jacket has a relative refractive index difference between 0.03% and 0.20%. Glass constituting the core has a fictive temperature between 1400° C. and 1560° C. Stress remaining in the core is compressive stress. A cutoff wavelength measured on a fiber having a length of 2 m is 1300 nm or more and a cutoff wavelength measured on a fiber having a length of 100 m is 1500 nm or less. An effective area at a wavelength of 1550 nm is 110 μm2 or more. A attenuation at a wavelength of 1550 nm is 0.19 dB/km or less.
摘要翻译：提供了适用于光传输网络的便宜的低损耗光纤。光纤包括芯，光学包层和外壳。芯的相对折射率差在0.2％至0.32％之间，折射率体积在9％·mum2和18％·mum2之间。护套的相对折射率差为0.03％至0.20％。构成核心的玻璃具有1400℃至1560℃之间的假想温度。芯体中的应力是压应力。在长度为2μm的光纤上测量的截止波长为1300nm以上，在长度为100μm的光纤上测定的截止波长为1500nm以下。 1550nm波长的有效面积为110m 2以上。在1550nm波长处的衰减为0.19dB / km或更小。

9. 发明公开

US20240329334A1 OPTICAL DEVICE 审中-公开
公开(公告)号：US20240329334A1
公开(公告)日：2024-10-03
申请号：US18580231
申请日：2022-08-10
申请人： SUMITOMO ELECTRIC INDUSTRIES, LTD.
发明人： Hong Chuyen NGUYEN , Tetsuya NAKANISHI , Takayuki YOKOCHI
IPC分类号： G02B6/42
CPC分类号： G02B6/4202 , G02B6/4216
摘要： An optical device according to one embodiment includes: a host device having an optical engine and an internal optical connector; and an optical fiber module attached to and detached from the host device. The optical fiber module includes a housing having a first surface exposed in a state of being attached to the host device and a second surface facing an opposite side of the first surface, and at least one first optical connector provided on the first surface. Furthermore, the optical fiber module includes a second optical connector provided on the second surface and capable of being optically connected to the internal optical connector; and first optical fibers optically connecting the first optical connector and the second optical connector to each other, and the number of first optical fibers being the same as the number of internal fibers.

10. 发明公开

US20240231020A1 OPTICAL DEVICE 审中-公开
公开(公告)号：US20240231020A1
公开(公告)日：2024-07-11
申请号：US18007958
申请日：2022-05-23
申请人： SUMITOMO ELECTRIC INDUSTRIES, LTD.
发明人： Takuya ISHIDA , Tetsuya NAKANISHI , Hong Chuyen NGUYEN
IPC分类号： G02B6/42
CPC分类号： G02B6/4261 , G02B6/4278
摘要： An optical device includes: a host device having a first housing, a first optical connector arranged inside the first housing, and an electrical connector arranged inside the first housing; and a light-emitting device having a second optical connector optically connected to the first optical connector, an electrical plug electrically connected to the electrical connector, and a second housing accommodating the second optical connector and the electrical plug and inserted into the first housing. The second housing has a latch structure latched onto the first housing when inserted into the first housing.

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