专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

EP2685296B1 METHOD FOR PRODUCING BUNDLE STRUCTURE, METHOD FOR CONNECTING FIBERS, BUNDLE TERMINAL STRUCTURE, AND FIBER CONNECTION STRUCTURE 有权
公开(公告)号：EP2685296B1
公开(公告)日：2020-08-05
申请号：EP12754906.1
申请日：2012-03-08
申请人： Furukawa Electric Co., Ltd.
发明人： SAITO, Tsunetoshi , WATANABE, Kengo
IPC分类号： G02B6/04 , G02B6/255 , G02B6/26

2. 发明授权

EP2765661B1 MULTI-CORE AMPLIFIED OPTICAL FIBER AND MULTI-CORE OPTICAL FIBER AMPLIFIER 有权
公开(公告)号：EP2765661B1
公开(公告)日：2018-12-05
申请号：EP12837909.6
申请日：2012-10-04
申请人： Furukawa Electric Co., Ltd.
发明人： TSUCHIDA, Yukihiro , MAEDA, Koichi , MIMURA, Yu , MATSUURA, Hiroshi , WATANABE, Kengo , SAITO, Tsunetoshi , MIYABE, Ryo , MATSUMOTO, Shigeto , AISO, Keiichi , SUGIZAKI, Ryuichi
IPC分类号： H01S3/067 , G02B6/04 , H01S3/10 , H01S3/094 , G02B6/02 , H01S3/0941 , H01S3/16 , H01S3/23 , H01S3/00 , H04J14/02 , H04J14/04
CPC分类号： H01S3/06708 , G02B6/02042 , H01S3/0064 , H01S3/06737 , H01S3/06754 , H01S3/094061 , H01S3/09415 , H01S3/1608 , H01S3/2383 , H01S2301/02 , H01S2301/04 , H04J14/02 , H04J14/04
摘要： A multi-core amplification optical fiber includes a plurality of core portions doped with a rare-earth element, and a cladding portion positioned at an outer periphery of each of the core portions and having refractive index lower than refractive index of each of the core portions, in which when a concentration of the rare-earth element doped to each of the core portions is 250 ppm to 2000 ppm, a relative refractive index ” of each of the core portions relative to the cladding portion is 0.5% to 2% at a wavelength of 1550 nm, and a core diameter of each of the core portions is 1 µm to 5 µm, a separation distance between each of the core portions and adjacent one of the core portions is set at equal to or larger than 30 µm and at equal to or smaller than 60 µm so that a crosstalk of light between the adjacent core portions is equal to or lower than -30 dB. Hereby a multi-core amplification optical fiber and a multi-core optical fiber amplifier capable of optical amplification while suppressing lowering of the qualtity in signal light are provided.

3. 发明授权

EP3115344B1 PRODUCTION METHOD FOR OPTICAL FIBER PREFORM, AND PRODUCTION METHOD FOR OPTICAL FIBER 有权
公开(公告)号：EP3115344B1
公开(公告)日：2018-12-26
申请号：EP15759142.1
申请日：2015-02-12
申请人： Furukawa Electric Co. Ltd.
发明人： GONDA, Tomohiro , MIYABE, Ryo , IMAMURA, Katsunori , SAITO, Tsunetoshi , SUGIZAKI, Ryuichi
IPC分类号： C03B37/012 , G02B6/02 , G02B6/04 , G02B6/06
CPC分类号： C03B37/01222 , C03B37/025 , C03B2203/23 , G02B6/02042
摘要： A production method of an optical fiber preform includes: a preparatory step of preparing: a plurality of bar-shaped first preforms; and a plurality of second preforms including through holes having substantially same shape with a shape of outer periphery of a cross section of the first preform, the cross section being orthogonal to a major axis of the first preform; and an assembly step of matching the through holes of the second preforms to make communication holes, and inserting, through each of the communication holes, at least two of the first preforms arranged side by side in a direction of the major axis such that the second preforms and the first preforms are fitting each other. In at least one position in the direction of the major axis of the communication holes, a position where the second preforms contact with each other differs from a position where the first preforms contact with each other. Hereby the production method is provided that is capable of producing an optical fiber preform that is long and highly precise in positions of the core portions or the like at a low cost.

4. 发明公开

EP2765661A1 MULTI-CORE AMPLIFIED OPTICAL FIBER AND MULTI-CORE OPTICAL FIBER AMPLIFIER 有权
标题翻译： MEHRADRIGEVERSTÄRKTEGLASFASER UNDVERSTÄRKEREINER MEHRADRIGEN GLASFASER
公开(公告)号：EP2765661A1
公开(公告)日：2014-08-13
申请号：EP12837909.6
申请日：2012-10-04
申请人： Furukawa Electric Co., Ltd.
发明人： TSUCHIDA, Yukihiro , MAEDA, Koichi , MIMURA, Yu , MATSUURA, Hiroshi , WATANABE, Kengo , SAITO, Tsunetoshi , MIYABE, Ryo , MATSUMOTO, Shigeto , AISO, Keiichi , SUGIZAKI, Ryuichi
IPC分类号： H01S3/067 , G02B6/04 , H01S3/10
CPC分类号： H01S3/06708 , G02B6/02042 , H01S3/0064 , H01S3/06737 , H01S3/06754 , H01S3/094061 , H01S3/09415 , H01S3/1608 , H01S3/2383 , H01S2301/02 , H01S2301/04 , H04J14/02 , H04J14/04
摘要： A multi-core amplification optical fiber includes a plurality of core portions doped with a rare-earth element, and a cladding portion positioned at an outer periphery of each of the core portions and having refractive index lower than refractive index of each of the core portions, in which when a concentration of the rare-earth element doped to each of the core portions is 250 ppm to 2000 ppm, a relative refractive index Δ of each of the core portions relative to the cladding portion is 0.5% to 2% at a wavelength of 1550 nm, and a core diameter of each of the core portions is 1 µm to 5 µm, a separation distance between each of the core portions and adjacent one of the core portions is set at equal to or larger than 30 µm and at equal to or smaller than 60 µm so that a crosstalk of light between the adjacent core portions is equal to or lower than -30 dB. Hereby a multi-core amplification optical fiber and a multi-core optical fiber amplifier capable of optical amplification while suppressing lowering of the qualtity in signal light are provided.
摘要翻译：多芯放大光纤包括掺杂有稀土元素的多个芯部和位于每个芯部的外周的折射率低于每个芯部的折射率的包层部分其中，当掺杂到每个芯部分的稀土元素的浓度为250ppm至2000ppm时，每个芯部分相对于包层部分的相对折射率“a”为0.5％至2％波长为1550nm，芯部的芯直径为1μm〜5μm，芯部与相邻的芯部之间的间隔距离设定为30μm以上，等于或小于60μm，使得相邻芯部之间的光的串扰等于或低于-30dB。因此，提供了能够在抑制信号光的准确性降低的同时进行光放大的多核放大光纤和多芯光纤放大器。

5. 发明公开

EP3115344A1 PRODUCTION METHOD FOR OPTICAL FIBER PARENT MATERIAL, AND PRODUCTION METHOD FOR OPTICAL FIBER 有权
标题翻译： HERSTELLUNGSVERFAHRENFÜRGLASFASERPARENT-GRUNDMATERIAL UND HERSTELLUNGSVERFAHRENFÜRGLASFASER
公开(公告)号：EP3115344A1
公开(公告)日：2017-01-11
申请号：EP15759142.1
申请日：2015-02-12
申请人： Furukawa Electric Co. Ltd.
发明人： GONDA, Tomohiro , MIYABE, Ryo , IMAMURA, Katsunori , SAITO, Tsunetoshi , SUGIZAKI, Ryuichi
IPC分类号： C03B37/012 , G02B6/02 , G02B6/04 , G02B6/06
CPC分类号： C03B37/01222 , C03B37/025 , C03B2203/23 , G02B6/02042
摘要： A production method of an optical fiber preform includes: a preparatory step of preparing: a plurality of bar-shaped first preforms; and a plurality of second preforms including through holes having substantially same shape with a shape of outer periphery of a cross section of the first preform, the cross section being orthogonal to a major axis of the first preform; and an assembly step of matching the through holes of the second preforms to make communication holes, and inserting, through each of the communication holes, at least two of the first preforms arranged side by side in a direction of the major axis such that the second preforms and the first preforms are fitting each other. In at least one position in the direction of the major axis of the communication holes, a position where the second preforms contact with each other differs from a position where the first preforms contact with each other. Hereby the production method is provided that is capable of producing an optical fiber preform that is long and highly precise in positions of the core portions or the like at a low cost.
摘要翻译：光纤预制棒的制造方法包括：制备多个棒状的第一预成型体的准备工序; 以及多个第二预制件，其包括通孔，所述通孔具有与所述第一预制件的横截面的外周形状基本相同的形状，所述横截面与所述第一预制件的长轴正交; 以及组装步骤，使所述第二预制件的通孔匹配以形成连通孔，并且通过每个所述连通孔插入沿所述长轴方向并排布置的所述第一预成型件中的至少两个，使得所述第二预成型件预成型件和第一预成型件彼此配合。在连通孔的长轴方向的至少一个位置上，第二预成型件彼此接触的位置与第一预成型体相互接触的位置不同。因此，提供了能够以低成本制造在芯部等的位置上长且高精度的光纤预制件的制造方法。

6. 发明公开

EP2685299A1 OPTICAL CONNECTOR, METHOD FOR ALIGNING MULTI-CORE FIBER AND BUNDLE STRUCTURE, AND FIBER ARRANGEMENT CONVERSION MEMBER 有权
标题翻译：光连接器，方法把一堆MEHRKERNFASER-和结构，元用于将纤维排列
公开(公告)号：EP2685299A1
公开(公告)日：2014-01-15
申请号：EP12755334.5
申请日：2012-03-08
申请人： The Furukawa Electric Co., Ltd.
发明人： SAITO, Tsunetoshi , WATANABE, Kengo
IPC分类号： G02B6/40 , G02B6/38
CPC分类号： G02B6/40 , G01B11/272 , G02B6/3885 , G02B6/403
摘要： An optical connector (10) is structured so as to include a fiber connection structure (1a) therein. A multi-core fiber (3) is included inside a ferrule (12), and affixed to the ferrule substrate. One end surface of the multi-core fiber (3) is exposed to an end surface of the ferrule (12). The other end of the multi-core fiber (3) passes through and is affixed to a capillary (21a). A plurality of optical fiber (7) pass through a capillary (21b) that faces the capillary (21a), and are affixed thereto the capillary in the same manner. Seven optical fiber cores of the same diameter are joined in a close-packed arrangement in the fiber connection structure (1a).

7. 发明公开

EP2685296A1 METHOD FOR PRODUCING BUNDLE STRUCTURE, METHOD FOR CONNECTING FIBERS, BUNDLE TERMINAL STRUCTURE, AND FIBER CONNECTION STRUCTURE 有权
标题翻译：制造方法BUNCH结构，方法用于连接连接结构光纤连接结构的纤维管束
公开(公告)号：EP2685296A1
公开(公告)日：2014-01-15
申请号：EP12754906.1
申请日：2012-03-08
申请人： Furukawa Electric Co., Ltd.
发明人： SAITO, Tsunetoshi , WATANABE, Kengo
IPC分类号： G02B6/04 , G02B6/255 , G02B6/26
CPC分类号： G02B6/02042 , G02B6/2551 , G02B6/3885 , G02B6/403
摘要： A multicore fiber 3 has a plurality of cores 11 formed at predetermined distances and surrounded by a cladding 13. A bundle structure 5 includes optical fibers 7 joined in a close-packed arrangement. Specifically, one optical fiber 7 is arranged at a center, and six optical fibers 7 are arranged around the optical fiber 7 arranged at the center. Accordingly, cores 15 of the optical fibers 7 are arranged at equal distances. The optical fibers 7 are bonded together with an adhesive 19a. Accordingly, claddings 17 of adjacent optical fibers 7 are in contact with each other either directly or via the adhesive 19a. The adhesive 19a also fills spaces between the optical fibers 7.
摘要翻译：多芯光纤3具有以预定距离形成并且包围由包层13.一种束结构5芯11的多元性包括以紧密配置接合光纤7。具体地，一个光纤7在中心布置，和六根光纤7在中心处布置在光纤7的周围布置。因此，芯光纤7以相同的间距排列的15。光纤7与在图19A的粘合剂贴合在一起。因此，包层相邻光纤7的17是在与海誓山盟接触直接或经由粘合剂19a上。粘合剂19A，以便填充在光纤之间的空间。7

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式