公开(公告)号：US20150016795A1

公开(公告)日：2015-01-15

申请号：US14501319

申请日：2014-09-30

Applicant: SUMITOMO ELECTRIC INDUSTRIES, LTD.

Inventor： Eisuke SASAOKA ,  Tetsuya HAYASHI ,  Osamu SHIMAKAWA

IPC: G02B6/02

CPC classification number: G02B6/02042 ,  G02B6/3885 ,  G02B6/4403

Abstract: An optical component according to an embodiment of the present invention is constructed of a plurality of MCFs each having the same core constellation structure and among the plurality of MCFs, a maximum deviation of a core pitch between neighboring cores and a maximum deviation of a spot size of a fundamental mode at an operating wavelength satisfy a specific relation, thereby suppressing structural variation so as to keep a splice loss not more than 1 dB.

Abstract translation: 根据本发明的实施例的光学部件由多个具有相同核心星座结构的MCF构成，并且在多个MCF中，相邻芯之间的芯间距的最大偏差和光点尺寸的最大偏差 在工作波长下的基本模式满足特定关系，从而抑制结构变化，从而保持接合损耗不超过1dB。

公开(公告)号：US20130287347A1

公开(公告)日：2013-10-31

申请号：US13863650

申请日：2013-04-16

Applicant: SUMITOMO ELECTRIC INDUSTRIES, LTD.

Inventor： Toshiki TARU ,  Takuji NAGASHIMA ,  Eisuke SASAOKA

IPC: G02B6/02

CPC classification number: G02B6/02042

Abstract: There is provided a multi-core fiber that can reduce both skew and crosstalk between cores. The multi-core fiber includes a plurality of cores extending along a fiber axis, and optical claddings surrounding the plurality of cores. The skew between optical signals propagating through the plurality of cores is 1 ps/m or less, and the propagation constant difference between two adjacent cores of the plurality of cores is more than 0.

Abstract translation: 提供了可以减少内核之间的偏斜和串扰的多芯光纤。 多芯光纤包括沿着光纤轴延伸的多个芯和围绕多个芯的光学包层。 通过多个核心传播的光信号之间的偏斜为1ps / m以下，多个核心的两个相邻核心之间的传播常数差大于0。

公开(公告)号：US20160070058A1

公开(公告)日：2016-03-10

申请号：US14945570

申请日：2015-11-19

Applicant: SUMITOMO ELECTRIC INDUSTRIES, LTD.

Inventor： Tetsuya NAKANISHI ,  Tetsuya HAYASHI ,  Takashi SASAKI ,  Eisuke SASAOKA

IPC: G02B6/02 ,  G02B6/38

CPC classification number: G02B6/02042 ,  C03B37/01222 ,  C03B37/027 ,  C03B2201/02 ,  C03B2201/12 ,  C03B2201/20 ,  C03B2203/04 ,  C03B2203/12 ,  C03B2203/34 ,  G02B6/02395 ,  G02B6/3652 ,  G02B6/3803 ,  G02B6/3838 ,  G02B6/3851

Abstract: The present invention relates to an MCF with a structure for enabling an alignment work with higher accuracy. The MCF has a plurality of cores and a cladding. An outer peripheral shape of the cladding in a cross section of the MCF is comprised of a circumferential portion forming a circumference coincident with an outer periphery of the MCF, and a cut portion. The cut portion has a bottom portion and two contact portions provided on both sides of the bottom portion and projecting more than the bottom portion. When a side face of the MCF is viewed, the two contact portions have flattened faces and the flattened faces of the two contact portions extend along a longitudinal direction of the MCF with the bottom portion in between.

Abstract translation: 本发明涉及具有能够以更高精度实现对准工作的结构的MCF。 MCF具有多个芯和包层。 MCF的横截面中的包层的外周形状包括形成与MCF的外周一致的圆周的周缘部和切断部。 切割部分具有底部和设置在底部两侧的两个接触部分，并且比底部部分突出。 当观察MCF的侧面时，两个接触部分具有平坦的表面，并且两个接触部分的平坦表面沿着MCF的纵向方向延伸，底部部分在其间。

公开(公告)号：US20130142487A1

公开(公告)日：2013-06-06

申请号：US13693211

申请日：2012-12-04

Applicant: SUMITOMO ELECTRIC INDUSTRIES, LTD.

Inventor： Eisuke SASAOKA

IPC: G02B6/38

CPC classification number: G02B6/3885 ,  G02B6/3652 ,  G02B6/3822 ,  G02B6/4224 ,  Y10T29/49826

Abstract: A multi-core optical fiber interconnection structure has a first multi-core optical fiber with a slanted end face and a second multi-core optical fiber with a slanted end face. In a state in which the slanted end faces face each other, each of cores of the first multi-core optical fiber is optically coupled to a corresponding one of cores of the second multi-core optical fiber in a one-to-one correspondence relation. The facing condition between the slanted end faces is adjusted so as to minimize variation in core pitches of pairs of the cores each in the one-to-one correspondence relation.

Abstract translation: 多芯光纤互连结构具有带倾斜端面的第一多芯光纤和具有倾斜端面的第二多芯光纤。 在倾斜端面彼此面对的状态下，第一多芯光纤的每个核心以一对一对应关系光耦合到第二多芯光纤的相应一个核心 。 调整倾斜端面之间的面对状态，以使一对一对应关系中的每对芯的间距的变化最小化。

公开(公告)号：US20140153882A1

公开(公告)日：2014-06-05

申请号：US13910395

申请日：2013-06-05

Applicant: Sumitomo Electric Industries, Ltd.

Inventor： Tetsuya HAYASHI ,  Eisuke SASAOKA

IPC: G02B6/02

CPC classification number: G02B6/02042 ,  G02B6/4434 ,  G02B6/4478 ,  G02B6/449

Abstract: The present invention relates to an optical fiber cable incorporating a multi-core fiber provided with a plurality of cores and a cladding region. The optical fiber cable has a jacket covering the multi-core fiber. The multi-core fiber is arranged so that a hold wrap holds the cores in a state in which they are provided with a bend of not more than a fixed radius of curvature, in order to reduce crosstalk between the cores.

Abstract translation: 本发明涉及一种结合有设置有多个芯的多芯光纤和包层区域的光纤电缆。 光纤电缆具有覆盖多芯光纤的护套。 多芯光纤被布置成使得保持包裹物将芯保持在其中设置有不大于固定曲率半径的弯曲的状态，以便减少芯之间的串扰。

公开(公告)号：US20130271771A1

公开(公告)日：2013-10-17

申请号：US13836161

申请日：2013-03-15

Applicant: Sumitomo Electric Industries, Ltd.

Inventor： Eisuke SASAOKA

IPC: G01B9/02 ,  G02B6/26

CPC classification number: G01B9/02049 ,  G02B6/26

Abstract: The present invention relates to an interference measurement device comprising a multi-core optical fiber having first and second ends, a light source, an optical receiver, a branching unit, a coupling unit, a measurement optical path, and a reference optical path and measures a physical quantity of an object to be measured on the measurement optical path. The light source and optical receiver are arranged on the first end side, while the measurement optical path and reference optical path are arranged on the second end side. The branching unit splits light from the light source into measurement light and reference light, while the coupling unit generates interference light between the measurement light having propagated through the measurement optical path and the reference light having propagated through the reference optical path. The optical receiver detects the intensity of the interference light.

Abstract translation: 本发明涉及一种干涉测量装置，包括具有第一和第二端的多芯光纤，光源，光接收器，分支单元，耦合单元，测量光路和参考光路，并且测量 在测量光路上测量的物体的物理量。 光源和光接收器布置在第一端侧，而测量光路和参考光路布置在第二端侧。 分支单元将来自光源的光分离成测量光和参考光，而耦合单元在已经通过测量光路传播的测量光与已经通过参考光路传播的参考光之间产生干涉光。 光接收机检测干涉光的强度。

公开(公告)号：US20130223795A1

公开(公告)日：2013-08-29

申请号：US13766921

申请日：2013-02-14

Applicant: SUMITOMO ELECTRIC INDUSTRIES, LTD.

Inventor： Eisuke SASAOKA ,  Takashi SASAKI ,  Akira INOUE

IPC: G02B6/26

CPC classification number: G02B6/262 ,  G02B6/02042 ,  G02B6/2552 ,  G02B6/30 ,  G02B6/3829 ,  G02B6/3885 ,  G02B6/421 ,  G02B6/4214 ,  G02B2006/12107

Abstract: The present invention relates to an optical coupling element to optically couple optical elements of different kinds to each other, which is provided with a plurality of cores. In the optical coupling element a first end and a second end opposed thereto are different in at least either of a core array and a core interval. The optical coupling element has a bent shape of at least a part of the optical coupling element itself including the cores, so that a light input/output direction at the first end is different from a light input/output direction at the second end.

Abstract translation: 光耦合元件技术领域本发明涉及光耦合元件，用于将具有多个芯的不同种类的光学元件光学耦合。 在光耦合元件中，与其相对的第一端和第二端在芯阵列和芯间隔中的至少一个方面是不同的。 光耦合元件具有包括芯的光耦合元件自身的至少一部分的弯曲形状，使得第一端的光输入/输出方向与第二端的光输入/输出方向不同。

公开(公告)号：US20130129292A1

公开(公告)日：2013-05-23

申请号：US13671928

申请日：2012-11-08

Applicant: SUMITOMO ELECTRIC INDUSTRIES, LTD.

Inventor： Eisuke SASAOKA ,  Masayuki SHIGEMATSU ,  Tetsuya HAYASHI

IPC: G02B6/02

CPC classification number: G02B6/02042 ,  G02B6/4246 ,  H04B10/2581

Abstract: The present invention relates to a multi-core optical fiber applicable to an optical transmission line of bi-directional optical communication and a bi-directional optical communication method. The multi-core optical fiber has plural cores in a common cladding. Signal light is transmitted in a first direction through an arbitrary core among the cores, whereas the signal light is transmitted in a second direction opposite to a first direction, through all the nearest-neighbor cores to the arbitrary core.

Abstract translation: 本发明涉及可应用于双向光通信的光传输线路和双向光通信方式的多核光纤。 多芯光纤在公共包层中具有多个芯。 信号光通过核心中的任意核心在第一方向上传输，而信号光通过与任意核心的所有最近相邻的核心在与第一方向相反的第二方向上传输。