公开(公告)号：US20120168017A1

公开(公告)日：2012-07-05

申请号：US13417747

申请日：2012-03-12

Applicant: Eisuke SASAOKA

Inventor： Eisuke SASAOKA

IPC: B01D35/02

CPC classification number: A01G27/005

Abstract: The present invention relates to a liquid conveying device and the like having a structure which liquid conveying can be performed to a sufficient height, while requiring no energy for liquid conveying and having a high degree of freedom of arrangement. The liquid conveying device 1 comprises a liquid conveying pipe 10, and a filter 20. The liquid conveying pipe 10 includes a minute tube having a through hole with a substantially uniform inner diameter over the whole longitudinal length thereof. The filter 20 has a mesh size smaller than the inner diameter of the through hole of the minute tube. When supplied to a first end of the liquid conveying pipe 10, a liquid passed through pores of the filter 20 is guided from the first end to a second end of the liquid conveying pipe 10 by a capillary action in the through hole.

Abstract translation: 液体输送装置本发明涉及一种液体输送装置等，其具有能够进行液体输送到足够的高度的结构，同时不需要液体输送的能量并且具有高度的排列自由度。 液体输送装置1包括液体输送管10和过滤器20.液体输送管10包括具有在其整个纵向长度上具有基本均匀内径的通孔的微管。 过滤器20的网眼尺寸小于分管的通孔的内径。 当供给到液体输送管10的第一端时，通过过滤器20的孔的液体通过通孔中的毛细作用从液体输送管10的第一端引导到第二端。

公开(公告)号：US20120148258A1

公开(公告)日：2012-06-14

申请号：US13371835

申请日：2012-02-13

Applicant: Eisuke SASAOKA ,  Kazuya Kuwahara

Inventor： Eisuke SASAOKA ,  Kazuya Kuwahara

IPC: H04B10/12

CPC classification number: G02B6/02019 ,  G02B6/0365 ,  H04B10/2916

Abstract: The present invention relates to an optical communications system that allows improving OSNR while suppressing the power increase of pumping light for distributed Raman amplification. In the optical communications system, an optical fiber is laid in a transmission section between a transmitter station (or repeater station) and a receiver station (or repeater station), and optical signals are transmitted from the transmitter station to the receiver station via the optical fiber. In the optical communications system, pumping light for Raman amplification, outputted by a pumping light source provided in the receiver station, is fed into the optical fiber via an optical coupler, and the optical signals are distributed-Raman-amplified in the optical fiber. The transmission loss and the effective area of the optical fiber satisfy, at the wavelength of 1550 nm, a predetermined relationship.

Abstract translation: 本发明涉及一种允许改善OSNR同时抑制用于分布式拉曼放大的泵浦光功率增加的光通信系统。 在光通信系统中，光纤被放置在发射台（或中继站）和接收站（或中继站）之间的传输部分中，并且光信号经由光信号从发射台发射到接收站 纤维。 在光通信系统中，由接收站中提供的泵浦光源输出的用于拉曼放大的泵浦光通过光耦合器馈送到光纤中，并且光信号在光纤中被分布拉曼放大。 光纤的传输损耗和有效面积在1550nm的波长下满足预定的关系。

公开(公告)号：US20100183272A1

公开(公告)日：2010-07-22

申请号：US12689596

申请日：2010-01-19

Applicant: Eisuke SASAOKA

Inventor： Eisuke SASAOKA

IPC: G02B6/02

CPC classification number: G02B6/02 ,  G02B6/02342 ,  G02B6/03633 ,  G02B6/03694

Abstract: The present invention relates to an optical fiber having a structure to enable both prevention of resin coating combustion due to leaked light, and low-loss light transmission. The optical fiber comprises a core region, and a cladding region. The cladding region is constituted by an optical cladding which affects the transmission characteristics of light propagating in the core region, and a physical cladding which does not affect the transmission characteristics of light propagating in the core region. Particularly, a leakage reduction portion is provided in the physical cladding so as to surround an outer periphery of the core region through the optical cladding. The leakage reduction portion functions to suppress propagation of the leaked light propagating from the core region toward outside the cladding region.

Abstract translation: 本发明涉及具有能够防止由于漏光引起的树脂涂层燃烧和低损耗光透射的结构的光纤。 光纤包括芯区域和包层区域。 包层区域由影响在芯区域中传播的光的透射特性的光学包层以及不影响在芯区域中传播的光的透射特性的物理包层构成。 特别地，在物理包层中设置泄漏减少部分，以便通过光学包层围绕芯区域的外围。 泄漏减少部用于抑制从芯区域向包层区域外侧传播的泄漏光的传播。

公开(公告)号：US20130074551A1

公开(公告)日：2013-03-28

申请号：US13627084

申请日：2012-09-26

Applicant: Eisuke SASAOKA

Inventor： Eisuke SASAOKA

IPC: G02B6/24 ,  C03B37/023

CPC classification number: C03B37/01222 ,  C03B37/01225 ,  C03B37/01234 ,  C03B37/0126 ,  C03B37/0128 ,  C03B37/027 ,  C03B37/02754 ,  C03B37/02781 ,  C03B2201/02 ,  C03B2201/12 ,  C03B2203/14 ,  C03B2203/34 ,  C03B2205/10 ,  G02B6/02042 ,  G02B6/3851 ,  G02B6/3885

Abstract: The present invention, even in the case where the size of a preform itself is increased, enables production of a multi-core optical fiber in which cores are arranged with high accuracy. A plurality of core members each being rod-like are fixed by an array fixing member while a relative positional relation of the plurality of core members is fixed, and the plurality of core members and a cladding member are integrated into one piece, and thus a preform is obtained. By drawing the obtained preform, a multi-core optical fiber in which core arrangement is controlled with high accuracy is obtained.

Abstract translation: 本发明即使在预成型体本身的尺寸增加的情况下，也能够制造高精度地配置有芯的多芯光纤。 通过阵列固定部件固定多个芯棒部件，并且多个芯部件的相对位置关系固定，多个芯体部件和包层部件一体成型， 得到预制件。 通过拉伸所获得的预成型体，可以获得高精度地控制芯布置的多芯光纤。

公开(公告)号：US20110222828A1

公开(公告)日：2011-09-15

申请号：US13044411

申请日：2011-03-09

Applicant: Eisuke SASAOKA ,  Toshiki Taru ,  Takuji Nagashima

Inventor： Eisuke SASAOKA ,  Toshiki Taru ,  Takuji Nagashima

IPC: G02B6/036

CPC classification number: G02B6/02042 ,  G02B6/0365

Abstract: The present invention relates to a multi-core optical fiber having a structure for reducing transmission loss and nonlinearity. The multi-core optical fiber comprises plural cores extending along a center axis direction, and a cladding surrounding the peripheries of the plural cores. The cladding is comprised of silica glass doped with fluorine, and each of the plural cores is comprised of silica glass doped with chlorine or pure silica glass.

Abstract translation: 本发明涉及具有减少传输损耗和非线性的结构的多芯光纤。 多芯光纤包括沿着中心轴方向延伸的多个芯和围绕多个芯的周边的包层。 该包层由掺杂有氟的二氧化硅玻璃构成，多个芯中的每一个都由掺有氯或纯二氧化硅玻璃的石英玻璃构成。

公开(公告)号：US20110280532A1

公开(公告)日：2011-11-17

申请号：US13108251

申请日：2011-05-16

Applicant: Eisuke SASAOKA

Inventor： Eisuke SASAOKA

IPC: G02B6/02 ,  C03B37/027 ,  C03B37/025

CPC classification number: C03B37/01222 ,  C03B37/01211 ,  C03B2201/12 ,  C03B2201/31 ,  C03B2203/34 ,  G02B6/0365 ,  Y02P40/57

Abstract: The present invention relates to, for example, a method of easily manufacturing an optical fiber having any refractive index profile with fewer kinds of rods, and an optical fiber is manufactured by preparing a plurality of rods including at least two kinds of rods having different refractive indexes from each other, bundling rods selected from the plurality of rods to construct two or more rod units, producing a preform including a region in which the two or more rod units are combined so as to have a cross-sectional shape having rotational symmetry of order 2 or more, and manufacturing an optical fiber by drawing the preform.

Abstract translation: 本发明涉及例如容易制造具有较少种类的棒的具有任何折射率分布的光纤的方法，并且通过制备多个棒来制造光纤，所述棒包括至少两种具有不同折射率的棒 相互指标，从多个杆中选择的捆扎杆构成两个或更多个杆单元，产生预型件，该预成型件包括两个或更多个杆单元组合在一起的区域，以具有旋转对称的横截面形状 2级以上，并且通过拉伸预成型件来制造光纤。

公开(公告)号：US20110249940A1

公开(公告)日：2011-10-13

申请号：US13083757

申请日：2011-04-11

Applicant: Eisuke SASAOKA ,  Osamu Shimakawa ,  Takuji Nagashima

Inventor： Eisuke SASAOKA ,  Osamu Shimakawa ,  Takuji Nagashima

IPC: G02B6/26

CPC classification number: G02B6/02042 ,  G02B6/264 ,  G02B6/2821

Abstract: The present invention provides an optical branching device and an optical communication system which are easy to connect with optical fibers. In the optical branching device, when light emitted from an optical fiber in a front stage is incident on an entrance port of a multicore optical fiber, the light propagates through a first core and then is distributed from the first core to four second cores by core-to-core crosstalk between the first and second cores. The light beams distributed to the four second cores propagate through the respective cores and are emitted to four optical waveguides optically coupled core-to-core thereto within a fan-out part at exit ports.

Abstract translation: 本发明提供一种易于与光纤连接的光分路装置和光通信系统。 在光分支装置中，当从前级的光纤发射的光入射到多芯光纤的入口时，光通过第一芯传播，然后通过芯从第一芯分配到四个第二芯 在第一和第二核之间的核心串扰。 分布到四个第二芯的光束通过相应的芯传播，并且在出口处的扇出部分内发射到与芯到芯光耦合的四个光波导。

公开(公告)号：US20110206330A1

公开(公告)日：2011-08-25

申请号：US13009874

申请日：2011-01-20

Applicant: Eisuke SASAOKA

Inventor： Eisuke SASAOKA

IPC: G02B6/036

CPC classification number: G02B6/02042 ,  G02B6/105

Abstract: The present invention relates to a multicore optical fiber having a structure for effectively inhibiting polarization mode dispersion from increasing, and the multicore optical fiber comprises a plurality of multicore units and a cladding region integrally covering the plurality of multicore units while separating the multicore units from each other. Each of the plurality of multicore units includes a plurality of core regions arranged such as to construct a predetermined core arrangement structure on a cross section orthogonal to an axis. The core arrangement structure of each multicore unit on the cross section has such a rotational symmetry as to coincide with the unrotated core arrangement structure at least three times while rotating by 360° about a center of the multicore unit, thereby reducing the structural asymmetry of each multicore unit. This lowers the structural birefringence in each multicore unit, thereby inhibiting the polarization mode dispersion from increasing in the multicore optical fiber.

Abstract translation: 本发明涉及一种具有有效抑制偏振模色散的结构的多芯光纤的增加，多芯光纤包括多个多芯单元和一个覆盖多个多核单元的包层区，同时将多核单元与每个多核单元分离 其他。 多个多芯单元中的每一个包括多个芯区域，其布置成在垂直于轴线的横截面上构造预定的芯布置结构。 横截面上的每个多芯单元的核心布置结构具有这样的旋转对称性，即与未旋转的芯排列结构一致，至少三次，同时围绕多芯单元的中心旋转360°，从而减少每个多轴单元的结构不对称性 多核单位 这降低了每个多芯单元中的结构双折射，从而抑制了多芯光纤中的偏振模色散增加。

公开(公告)号：US20100111486A1

公开(公告)日：2010-05-06

申请号：US12611461

申请日：2009-11-03

Applicant: Tetsuya HAYASHI ,  Eisuke SASAOKA ,  Kazuya KUWAHARA ,  Takashi SASAKI ,  Yasushi KOYANO ,  Fumiyoshi OHKUBO ,  Shinjiro HAGIHARA

Inventor： Tetsuya HAYASHI ,  Eisuke SASAOKA ,  Kazuya KUWAHARA ,  Takashi SASAKI ,  Yasushi KOYANO ,  Fumiyoshi OHKUBO ,  Shinjiro HAGIHARA

IPC: G02B6/00

CPC classification number: G02B6/4457 ,  G02B6/02214

Abstract: The present invention relates to a dispersion compensating module having a configuration that can effectively suppress high-speed fluctuations in the polarization state of light even when being imparted with impact or vibration. In the dispersion compensating module, a dispersion compensating optical fiber is fixed while being wound around the barrel of a bobbin, and the bobbin is fixed in the inside of a housing via a buffer that absorbs impact or vibration. The bobbin corresponds to a holder holding the dispersion compensating optical fiber fixed in a state of coil. The housing corresponds to a struct fixing the holder. The buffer fills a space between the housing and the bobbin on which the dispersion compensating optical fiber is coiled.

Abstract translation: 本发明涉及一种具有能够有效地抑制光的偏振状态的高速波动的色散补偿模块，即使被施加冲击或振动。 在色散补偿模块中，色散补偿光纤被缠绕在绕线筒的筒体上是固定的，并且线轴通过吸收冲击或振动的缓冲器固定在壳体的内部。 线轴对应于固定在线圈状态的保持色散补偿光纤的保持架。 外壳对应于固定支架的结构。 缓冲器填充壳体和卷绕有色散补偿光纤的线轴之间的空间。

公开(公告)号：US20130136410A1

公开(公告)日：2013-05-30

申请号：US13744745

申请日：2013-01-18

Applicant: Eisuke SASAOKA

Inventor： Eisuke SASAOKA

IPC: G02B6/02

CPC classification number: G02B6/02042 ,  G02B6/0365

Abstract: The present invention relates to a multi-core optical fiber having a structure to effectively reduce crosstalk between adjacent core regions among a plurality of core regions. The multi-core optical fiber (1) has a leakage reduction portion (50), at least a portion of which is arranged at a position on a straight line connecting adjacent core regions together among a plurality of core regions (10). The leakage reduction portion (50) reduces leakage light in the multi-core optical fiber (1) from each of the core regions (10), thereby effectively reducing crosstalk between adjacent core regions.

Abstract translation: 本发明涉及具有有效地减少多个核心区域中的相邻核心区域之间的串扰的结构的多芯光纤。 多芯光纤（1）具有泄漏减少部（50），其至少一部分配置在多个芯区域（10）之间连接相邻芯区域的直线上的位置。 泄漏减少部分（50）从每个芯区域（10）减少多芯光纤（1）中的泄漏光，从而有效地减少相邻核心区域之间的串扰。