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：US20110080590A1

公开(公告)日：2011-04-07

申请号：US12988221

申请日：2009-04-15

Applicant: Eisuke Sasaoka ,  Kazuo Nakamae ,  Toshiki Taru ,  Takuji Nagashima

Inventor： Eisuke Sasaoka ,  Kazuo Nakamae ,  Toshiki Taru ,  Takuji Nagashima

IPC: G01B9/02 ,  G02B6/10 ,  G02B6/00

CPC classification number: G02B6/1225 ,  B82Y20/00 ,  C03B23/047 ,  C03B33/06 ,  C03B2201/02 ,  C03B2201/12 ,  C03B2201/31 ,  G02B6/12002 ,  G02B6/13 ,  Y02P40/57

Abstract: The present invention relates to an optical waveguide manufacturing method, which excels in mass productivity of a planar optical waveguide. In an aggregating step, plural members (20), which have a rod (21) or pipe (22) shape respectively, are arranged and bundled so as to constitute a substantially similar figure to at least a part of a desired waveguide pattern on a cross-section perpendicular to the longitudinal direction of the members (20). The plural members (20) bundled in the aggregating step are, after being softened by heating, elongated in a longitudinal direction thereof in an elongating step, whereby an elongated body is formed. The elongated body formed in the elongating step is cut along a plane perpendicular to the longitudinal direction of the elongated body in a cutting step. By these steps, a planar optical waveguide, on which a waveguide pattern based on a micro-structure is formed, is manufactured.

Abstract translation: 光波导制造方法技术领域本发明涉及一种平面光波导的质量生产率优异的光波导制造方法。 在聚集步骤中，分别具有棒（21）或管（22）形状的多个构件（20）被布置和捆扎，以便构成与图1中所需的波导图案的至少一部分大致相似的图 横截面垂直于构件（20）的纵向方向。 在聚集步骤中捆扎的多个构件（20）在通过加热软化之后，在拉伸步骤中在其长度方向上伸长，由此形成细长体。 在切割步骤中，沿着与细长体的纵向方向垂直的平面切割在拉伸步骤中形成的细长体。 通过这些步骤，制造其上形成有基于微结构的波导图案的平面光波导。

公开(公告)号：US20100195965A1

公开(公告)日：2010-08-05

申请号：US12690496

申请日：2010-01-20

Applicant: Eisuke Sasaoka

Inventor： Eisuke Sasaoka

IPC: G02B6/036

CPC classification number: G02B6/02042 ,  G02B6/264 ,  G02B6/3879 ,  G02B6/4249 ,  G02B6/4472

Abstract: The present invention relates to an optical communication system or the like, which comprises a multicore fiber with a plurality of cores that are two-dimensionally arrayed in a cross-section thereof. In the optical communication system, an arrangement converter, provided between a multicore fiber and an Optical Line Terminal (OLT) having light emitting areas arrayed one-dimensionally, comprises first and second end faces, and a plurality of optical waveguides. The optical waveguides are disposed such that one of the end faces coincides with the first end face and the other end face coincides with the second end face. In particular, the optical waveguide end face array on the first end face and the optical waveguide end face array on the second face are different, contributing to an optical link between network resources of different types.

Abstract translation: 光通信系统等技术领域本发明涉及光通信系统等，该光通信系统等包括具有多个核心的多芯光纤，其二维排列在其横截面上。 在光通信系统中，设置在多芯光纤与具有一维排列的发光区域的光线路终端（OLT）之间的布置转换器包括第一和第二端面以及多个光波导。 光波导被设置为使得一个端面与第一端面重合，另一端面与第二端面重合。 特别地，第一端面上的光波导端面阵列和第二面上的光波导端面阵列是不同的，有助于不同类型的网络资源之间的光链路。

公开(公告)号：US07359602B2

公开(公告)日：2008-04-15

申请号：US10532708

申请日：2004-08-04

Applicant: Eisuke Sasaoka ,  Yoshinori Yamamoto ,  Kazunari Fujimoto

Inventor： Eisuke Sasaoka ,  Yoshinori Yamamoto ,  Kazunari Fujimoto

IPC: G02B6/02 ,  G02B6/16

CPC classification number: C03C13/04 ,  G01M11/33 ,  G02B6/02 ,  G02B6/02242 ,  G02B6/02266 ,  G02B6/29377

Abstract: The present invention relates to a method of forming a transmission line capable of measuring more precise connection losses at low cost, and so on. At least of first and second optical fibers to be connected as components of the optical transmission line is selected such that, at one wavelength λ contained in the wavelength range of 1260 nm to 1625 nm, predetermined relationships defined by the Rayleigh scattering coefficients of the first and second optical fibers, the mode field diameters of the first and second optical fibers at the wavelength λ, and the transmission losses of the first and second optical fibers at the wavelength λ can be satisfied between the first and second optical fibers.

Abstract translation: 本发明涉及一种能够以低成本测量更精确的连接损耗的传输线的形成方法等。 至少要作为光传输线路的部件连接的第一和第二光纤被选择为使得在包含在1260nm至1625nm的波长范围内的一个波长λ处，由第一和第二光纤的瑞利散射系数定义的预定关系 和第二光纤，可以在第一和第二光纤之间满足波长为λ的第一和第二光纤的模场直径以及波长λ处的第一和第二光纤的透射损失。

公开(公告)号：US20070104429A1

公开(公告)日：2007-05-10

申请号：US10578711

申请日：2005-11-11

Applicant: Tomoyuki Yokokawa ,  Eisuke Sasaoka

Inventor： Tomoyuki Yokokawa ,  Eisuke Sasaoka

IPC: G02B6/44

CPC classification number: G02B6/4434 ,  G02B6/441

Abstract: An optical cable according to the present invention relates to an optical cable having a construction to enable reduction of a cable outer diameter, and/or improvement of contained efficiency of coated optical fibers while an increase of transmission loss in each coated optical fiber is suppressed. The optical cable has a loose-tube type of structure constructed by: a tension member; a plurality of tubes stranded together around the tension member; and an outer sheath covering the outer periphery of the plurality of tubes. One or more coated optical fibers are contained in each tube. A ratio of A/B is 6.3 or more but 7.0 or less, where each coated optical fiber has a mode field diameter A in a range of 8.6±0.4 μm at a wavelength of 1.31 μm, and where a fiber cutoff wavelength thereof is B μm.

Abstract translation: 根据本发明的光缆涉及具有能够减少电缆外径的结构和/或提高涂覆光纤的收纳效率的光缆，同时抑制每个涂覆光纤中的传输损耗的增加。 光缆具有松套管结构，其构造为：张紧构件; 围绕所述张力构件绞合在一起的多个管; 以及覆盖多个管的外周的外护套。 每个管中包含一个或多个涂覆的光纤。 A / B的比例为6.3以上且7.0以下，其中每个涂覆光纤的波长为1.31μm的模场直径A在8.6±0.4μm的范围内，并且其光纤截止波长为B 妈妈

公开(公告)号：US20060257085A1

公开(公告)日：2006-11-16

申请号：US10558630

申请日：2004-07-09

Applicant: Hitoshi Hatayama ,  Eisuke Sasaoka

Inventor： Hitoshi Hatayama ,  Eisuke Sasaoka

IPC: G02B6/02

CPC classification number: H04B10/2563 ,  G02B6/02009 ,  G02B6/02223 ,  G02B6/02242 ,  G02B6/02257 ,  G02B6/02271 ,  G02B6/03644 ,  G02B6/29377

Abstract: The present invention provides an optical transmission system and so on having a structure that enables to reduce variations between wavelengths in chromatic dispersion over a wide wavelength range and control non-linear optical effects. An optical fiber transmission line comprises a first optical fiber having a positive chromatic dispersion such that its wavelength dependence is reduced over a wide wavelength range, and a second optical fiber having a negative chromatic dispersion such that its wavelength dependence is reduced over the wavelength range. In this way, the first and second optical fibers each have a chromatic dispersion of a different polarity, thereby controlling accumulated chromatic dispersions at low level for a whole optical fiber transmission line, while the chromatic dispersion occurs to some extent in each of the first and second optical fibers, thereby controlling effectively non-linear optical effects such as four-wave mixing.

Abstract translation: 本发明提供了一种光传输系统等，其具有能够减小宽波长范围内的色散波长之间的变化并且控制非线性光学效果的结构。 光纤传输线包括具有正色散的第一光纤，使得其波长依赖性在宽波长范围内减小，并且具有负色散的第二光纤，使得其波长依赖性在波长范围内减小。 以这种方式，第一和第二光纤各自具有不同极性的色散，从而将整个光纤传输线的累积色散控制在低电平，同时在一定程度上在第一和第 第二光纤，从而有效地控制诸如四波混频的非线性光学效应。

公开(公告)号：US06859598B2

公开(公告)日：2005-02-22

申请号：US09764254

申请日：2001-01-19

Applicant: Takemi Hasegawa ,  Eisuke Sasaoka ,  Masayuki Nishimura

Inventor： Takemi Hasegawa ,  Eisuke Sasaoka ,  Masayuki Nishimura

IPC: G02B6/02 ,  G02B6/20

CPC classification number: G02B6/02347 ,  G02B6/02028 ,  G02B6/02261 ,  G02B6/0228 ,  G02B6/02352 ,  G02B6/02357 ,  G02B6/02361 ,  G02B6/02366 ,  G02B6/03644

Abstract: In an optical fiber including a core region and cladding regions of not less than three layers which surrounds the core region in order, each of said cladding regions has a mean refractive index different from those of the adjacents regions,at least one of the cladding regions has a lower mean refractive index than both adjacent regions, and at least one cladding region is provided with a plurality of sub medium regions each having a refractive index lower than a main medium constituting this cladding region.

Abstract translation: 在包括芯区域的光纤和依次包围芯区域的不少于三层的包层区域的光纤中，每个所述包层区域具有与邻接区域不同的平均折射率，至少一个包层区域 具有比两个相邻区域更低的平均折射率，并且至少一个包层区域设置有多个次级介质区域，每个子介质区域的折射率低于构成该包层区域的主介质。

公开(公告)号：US06805497B1

公开(公告)日：2004-10-19

申请号：US09869698

申请日：2001-07-03

Applicant: Shinji Ishikawa ,  Motonori Nakamura ,  Masao Tsukitani ,  Eisuke Sasaoka

Inventor： Shinji Ishikawa ,  Motonori Nakamura ,  Masao Tsukitani ,  Eisuke Sasaoka

IPC: G02B6255

CPC classification number: G02B6/03694 ,  G02B6/03627 ,  G02B6/2551 ,  G02B6/29376 ,  G02B6/29377

Abstract: An optical transmission line including a portion formed by fusion-splicing optical fibers having structures different from each other; wherein, in the optical fibers having structures different from each other, a first optical fiber 1 has a mode field diameter smaller than that of a second optical fiber 2 fusion-spliced thereto; and wherein the first optical fiber 1 has an average viscosity from a center to an outermost layer greater than that of the second optical fiber from a center to an outermost layer.

Abstract translation: 一种光传输线，包括通过熔接具有彼此不同结构的光纤而形成的部分; 其中，在具有彼此不同的结构的光纤中，第一光纤1的模场直径小于与其熔接的第二光纤2的模场直径; 并且其中第一光纤1具有从中心到最外层的从中心到最外层的平均粘度大于第二光纤的平均粘度。

公开(公告)号：US06701090B1

公开(公告)日：2004-03-02

申请号：US09626158

申请日：2000-07-26

Applicant: Hitoshi Hatayama ,  Eisuke Sasaoka

Inventor： Hitoshi Hatayama ,  Eisuke Sasaoka

IPC: H04J1402

CPC classification number: H04B10/077 ,  G02B6/12019 ,  H04B10/07955 ,  H04J14/02

Abstract: Wavelength division multiplexing signal light is fed into an arrayed diffraction grating type optical demultiplexer, demultiplexed signal light components are outputted from a plurality of output ports, whether there is a signal light component or not is detected by each photodiode of a photodiode array, and a counter unit calculates the number of signals from the result of detection. Here, the output wavelength interval of &Dgr;&lgr;o of the output ports is set to &Dgr;&lgr;o=&Dgr;&lgr;i/m (where m is an integer of at least two) with respect to the signal wavelength interval &Dgr;&lgr;i of the wavelength division multiplexing signal light, whereas the photodiode array is sectioned into m photodiode array groups in which the output signal wavelength interval is &Dgr;&lgr;i.

Abstract translation: 波分复用信号光被馈送到阵列衍射光栅型光解复用器中，从多个输出端口输出解复用的信号光分量，无论是否由光电二极管阵列的每个光电二极管检测到信号光分量，以及 计数器单元根据检测结果计算信号数。 这里，输出端口的Deltalambdao的输出波长间隔相对于波分复用信号光的信号波长间隔Deltalambdai被设置为Deltalambdao = Deltalambdai / m（其中m是至少为2的整数），而光电二极管 阵列分为m个光电二极管阵列组，其中输出信号波长间隔为Deltalambdai。

公开(公告)号：US06661954B2

公开(公告)日：2003-12-09

申请号：US10061210

申请日：2002-02-04

Applicant: Eisuke Sasaoka ,  Takemi Hasegawa ,  Shinji Ishikawa ,  Masashi Onishi

Inventor： Eisuke Sasaoka ,  Takemi Hasegawa ,  Shinji Ishikawa ,  Masashi Onishi

IPC: G02B642

CPC classification number: G02B6/02328 ,  G02B6/02333 ,  G02B6/02357 ,  G02B6/02361 ,  G02B6/02366 ,  G02B6/02385 ,  G02B6/262 ,  G02B6/3801

Abstract: Provided are an optical transmission line including a connected part of the optical fibers having different refractive index profiles, wherein at least one of the optical fibers has a hollow region, and a method for connecting such optical fibers, wherein connection loss in a connection of such optical fibers is reduced. In the case of connecting an optical fiber 1, which does not have a hollow region and which consists of a core region 3 and a cladding region 4, and an optical fiber 2, which consists of a hollow core region 5 and a cladding region 6 having a plurality of refractive index variation parts 7 which extend along optical fiber 2, matching oil M is first injected into the connecting end portion of the hollow core region 5 to be connected with the optical fiber 1. The matching oil M is a substance that has a matched refractive index greater than the refractive index of the material which forms the cladding region 6. Subsequently, one end portion of the optical fiber 1 and the connecting end portion of the optical fiber 2, wherein the matching oil M is injected, are inserted into the glass pipe 8, and the optical fiber 1 and the optical fiber 2 are connected.

Abstract translation: 提供一种光传输线，其包括具有不同折射率分布的光纤的连接部分，其中至少一个光纤具有中空区域，以及连接这种光纤的方法，其中连接这种光纤的连接损耗 光纤减少。 在连接不具有由芯区域3和包层区域4构成的中空区域的光纤1和由中空芯区域5和包层区域6构成的光纤2的情况下 具有沿着光纤2延伸的多个折射率变化部7，首先将匹配油M注入到与光纤1连接的中空芯区域5的连接端部。匹配油M是 具有大于形成包层区域6的材料的折射率的匹配折射率。随后，光纤1的一个端部和光纤2的连接端部（其中注入匹配油M）是 插入玻璃管8中，并且光纤1和光纤2连接。