公开(公告)号：US5329600A

公开(公告)日：1994-07-12

申请号：US892208

申请日：1992-06-02

申请人： Eisuke Sasaoka ,  Masumi Fukuma ,  Hiroaki Takimoto ,  Hiroshi Suganuma ,  Hiroshi Yokota ,  Junichi Yoshikawa ,  Kazuhiko Arimoto

发明人： Eisuke Sasaoka ,  Masumi Fukuma ,  Hiroaki Takimoto ,  Hiroshi Suganuma ,  Hiroshi Yokota ,  Junichi Yoshikawa ,  Kazuhiko Arimoto

IPC分类号： G02B6/28 ,  G02B6/26

CPC分类号： G02B6/2835

摘要： In an optical fiber coupler fabricating process where couplers are successively formed by heating, elongating and cutting a plurality of long optical fibers, light is led into the first end of the fiber, reflected at the second end of the coupler, and the reflected light is monitored by photodetectors. In this manner, an exact splitting ratio can be obtained. Techniques for minimizing measuring errors caused by the inter-reflected-light interference, the inter-Rayleigh-scattering-light interference, and the interference between the reflected light and the Rayleigh scattering light, while exploiting the advantageous feature of the reflection monitor method that the fiber connection work for each fiber coupler fabrication is not required are disclosed.

摘要翻译： 在通过加热，拉长和切割多根长的光纤连续地形成耦合器的光纤耦合器制造过程中，光被引入光纤的第一端，在耦合器的第二端被反射，并且反射的光是 由光电检测器监测。 以这种方式，可以获得精确的分离比。 用于最小化由反射光干涉引起的测量误差，瑞利散射光干涉以及反射光和瑞利散射光之间的干扰的技术，同时利用反射监测方法的有利特征， 公开了不需要每个光纤耦合器制造的光纤连接工作。

公开(公告)号：US5695540A

公开(公告)日：1997-12-09

申请号：US441304

申请日：1995-05-15

申请人： Hiroshi Suganuma ,  Tomoyuki Hattori ,  Hiroaki Takimoto ,  Eisuke Sasaoka ,  Hiroshi Yokota ,  Kenichi Matsushita

发明人： Hiroshi Suganuma ,  Tomoyuki Hattori ,  Hiroaki Takimoto ,  Eisuke Sasaoka ,  Hiroshi Yokota ,  Kenichi Matsushita

IPC分类号： G02B6/255 ,  G02B6/28 ,  C03B29/00

CPC分类号： G02B6/2835 ,  G02B6/2856 ,  G02B6/2551

摘要： Optical fibers are fixed to elongating tables by optical fiber fixing jigs. Coatings are removed from portions of the fibers and respective fibers of two different groups are placed into tight contact with one another. The fibers are then heated by a gas burner 4A so as to be welded integrally with each other, and are then elongated. In one preferred embodiment, the fibers are arranged such that there are gaps therebetween. These gaps are substantially 250 .mu.m. The gaps are sufficiently wide that heating gas flows in a manner such that all the optical fiber strands are heated uniformly to make it possible uniform welding and elongation.

摘要翻译： 光纤通过光纤固定夹固定在伸长台上。 从纤维的部分去除涂层，并且将两个不同组的相应纤维彼此紧密接触。 然后通过气体燃烧器4A加热纤维，以便彼此整体焊接，然后被拉长。 在一个优选实施例中，纤维布置成使得它们之间存在间隙。 这些差距大致是250亩。 间隙足够宽，使得加热气体以使得所有光纤线均匀地加热以使其可能均匀的焊接和伸长的方式流动。

公开(公告)号：US5417734A

公开(公告)日：1995-05-23

申请号：US145509

申请日：1993-11-04

申请人： Hiroshi Suganuma ,  Tomoyuki Hattori ,  Hiroaki Takimoto ,  Eisuke Sasaoka ,  Hiroshi Yokota ,  Kenichi Matsushita

发明人： Hiroshi Suganuma ,  Tomoyuki Hattori ,  Hiroaki Takimoto ,  Eisuke Sasaoka ,  Hiroshi Yokota ,  Kenichi Matsushita

IPC分类号： G02B6/255 ,  G02B6/28 ,  G02B6/287

CPC分类号： G02B6/2835 ,  G02B6/2856 ,  G02B6/2551

摘要： Optical fibers are fixed to elongating tables by optical fiber fixing jigs. Coatings are removed from portions of the fibers and respective fibers of two different groups are placed into tight contact with one another. Rectifier rods, supported movably by rectifier rod supporting members, are disposed outside the optical fiber strands. The fibers are then heated by a gas burner 4A so as to be welded integrally with each other, and are then elongated. By using rectifier rods, the outside optical fiber strands of the groups being welded are not so strongly heated that uniform welding and elongation can be realized. In one preferred embodiment, the fibers are arranged such that there are gaps therebetween. These gaps are substantially 250 .mu.m. The gaps are sufficiently wide that heating gas flows in a manner such that all the optical fiber strands are heated uniformly to make it possible uniform welding and elongation.

摘要翻译： 光纤通过光纤固定夹固定在伸长台上。 从纤维的部分去除涂层，并且将两个不同组的相应纤维彼此紧密接触。 由整流棒支撑件可移动地支撑的整流棒设置在光纤线束的外部。 然后通过气体燃烧器4A加热纤维，以便彼此整体焊接，然后被拉长。 通过使用整流棒，被焊接的组的外部光纤线束不会被强烈加热，从而可以实现均匀的焊接和伸长。 在一个优选实施例中，纤维布置成使得它们之间存在间隙。 这些差距大致是250亩。 间隙足够宽，使得加热气体以使得所有光纤线均匀地加热以使其可能均匀的焊接和伸长的方式流动。

公开(公告)号：US5325450A

公开(公告)日：1994-06-28

申请号：US25643

申请日：1993-03-03

申请人： Hiroshi Suganuma ,  Eisuke Sasaoka ,  Tomoyuki Hattori ,  Hiroaki Takimoto ,  Hiroshi Yokota

发明人： Hiroshi Suganuma ,  Eisuke Sasaoka ,  Tomoyuki Hattori ,  Hiroaki Takimoto ,  Hiroshi Yokota

IPC分类号： G02B6/293 ,  G02B6/28 ,  G02B6/287 ,  G02B6/26 ,  C03B23/20 ,  H04J14/00

CPC分类号： G02B6/2856 ,  G02B6/2835

摘要： An optical fiber coupler having a crosstalk characteristic of at least 18 dB. The optical fiber coupler includes a plurality of optical fibers. A length of glass in the optical fibers is exposed by removing the covering. The glass lengths are fused together and extended, during which time the fibers are twisted and subjected to a tension. The twisted fibers are then fixed to a protecting member while the tension is sustained.

摘要翻译： 具有至少18dB的串扰特性的光纤耦合器。 光纤耦合器包括多个光纤。 通过去除覆盖物来曝光光纤中的玻璃长度。 玻璃长度熔合在一起并延伸，在此期间纤维被扭曲并受到张力。 然后将扭曲的纤维固定在保护构件上，同时保持张力。

公开(公告)号：US5548672A

公开(公告)日：1996-08-20

申请号：US391687

申请日：1995-02-21

申请人： Tomoyuki Hattori ,  Hiroshi Suganuma ,  Eisuke Sasaoka ,  Hiroaki Takimoto

发明人： Tomoyuki Hattori ,  Hiroshi Suganuma ,  Eisuke Sasaoka ,  Hiroaki Takimoto

IPC分类号： G02B6/28 ,  G02B6/26

CPC分类号： G02B6/2835

摘要： A reinforced structure for a multicore optical fiber coupler wherein a longitudinal coating resin of first and second multicore optical fibers, each having a plurality of optical fiber stands positioned in parallel arrangement to each other and each collectively coated with a respective coating resin, is partially removed so as to expose glass portions of the optical fiber strands of each of the optical fibers. The exposed glass portions are then fused and extended. The fused and extended portions are then accommodated in a plurality of grooves formed in a reinforcing casing. The non-extended portions, which are located on opposite ends of the fused and extended portions in the extending direction, are also accommodated on the surface of the reinforcing casing. The optical fibers are secured to the reinforcing casing with adhesive, which is applied to the non-extended portions of the fibers. The reinforcing casing is preferably made of a material having substantially the same coefficient of linear expansion as that of quartz.

摘要翻译： 一种用于多芯光纤耦合器的增强结构，其中第一和第二多芯光纤的纵向涂覆树脂，每个具有彼此平行排列并且各自共同涂覆有相应涂层树脂的多个光纤支架，被部分地去除 以便露出每个光纤的光纤线束的玻璃部分。 然后将暴露的玻璃部分熔化并延伸。 然后将熔融和延伸的部分容纳在形成在加强壳体中的多个槽中。 在延伸方向上位于熔融延伸部分的相对两端的非延伸部分也容纳在加强壳体的表面上。 光纤被粘合剂固定到加强外壳，粘合剂被施加到纤维的非延伸部分。 加强套管优选由具有与石英基本相同的线性膨胀系数的材料制成。

公开(公告)号：US5627930A

公开(公告)日：1997-05-06

申请号：US360708

申请日：1995-05-02

申请人： Yoichi Ishiguro ,  Shigeru Semura ,  Yuji Kobayashi ,  Toshiyuki Wakinosono ,  Tomoyuki Hattori ,  Hiroshi Suganuma ,  Eisuke Sasaoka ,  Hiroaki Takimoto

发明人： Yoichi Ishiguro ,  Shigeru Semura ,  Yuji Kobayashi ,  Toshiyuki Wakinosono ,  Tomoyuki Hattori ,  Hiroshi Suganuma ,  Eisuke Sasaoka ,  Hiroaki Takimoto

IPC分类号： G02B6/28 ,  G02B6/38

CPC分类号： G02B6/2821 ,  G02B6/2835

摘要： In a case where an arrayed optical fiber coupler obtained from a tape ribbon 1 is fixed to an reinforcement case 3, a glass portions 2b as a non-elongated portion outside of the elongated portions 2c of the coupler and a protection coating layers 2a at the back thereof are fixed to the reinforcement case 3 with an adhesive layer 4. A collectively coating resin layer 1a of the tape ribbon 1 is not fixed to the reinforcement case 3. The resin layer 1a is fixed to the reinforcement case 3 with a soft adhesive layer 5 different from the above adhesive layer 4, if necessary. As the resin of the adhesive layer 4, there is preferable an adhesive having the viscosity of 50 to 200 P and thermosetting property in addition to ultraviolet cure property.

摘要翻译： PCT No.PCT / JP94 / 00638 Sec。 371日期：1995年5月2日 102（e）日期1995年5月2日PCT 1994年4月18日PCT PCT。 第WO94 / 24591号公报 日期：1994年10月27日在从带带1获得的排列的光纤耦合器固定到加强壳体3的情况下，作为耦合器的细长部分2c外部的非细长部分的玻璃部分2b和保护 其背面的涂层2a用粘合剂层4固定到加强壳体3上。带带1的共同涂覆的树脂层1a不固定到加强壳体3上。树脂层1a固定到加强壳体 3，如果需要，具有与上述粘合剂层4不同的软粘合剂层5。 作为粘合层4的树脂，除了紫外线固化性以外，优选粘度为50〜200P，热固性的粘合剂。

公开(公告)号：US5438640A

公开(公告)日：1995-08-01

申请号：US225716

申请日：1994-04-08

申请人： Eisuke Sasaoka ,  Hiroo Kanamori ,  Hiroshi Suganuma ,  Shinji Ishikawa ,  Tatsuhiko Saito

发明人： Eisuke Sasaoka ,  Hiroo Kanamori ,  Hiroshi Suganuma ,  Shinji Ishikawa ,  Tatsuhiko Saito

IPC分类号： G02B6/125 ,  G02B6/26 ,  G02B6/28

CPC分类号： G02B6/264 ,  G02B6/125 ,  G02B6/262 ,  G02B6/2817

摘要： The present invention comprises a waveguide substrate and an optical waveguide disposed on the substrate, the optical waveguide having an optical waveguide region as a light transmission path, an insertion region for inserting an optical functional component having a mode field width of light propagating therein larger than that of light propagating in the optical waveguide region, and an optical connection region provided between the optical waveguide region and the insertion region to change a mode field width of light propagating therein.

摘要翻译： 本发明包括设置在基板上的波导基板和光波导，光波导具有光波导区域作为光传输路径，插入区域用于插入具有在其中传播的光的模场宽度的光功能元件， 在光波导区域中传播的光和在光波导区域和插入区域之间设置的光连接区域，以改变在其中传播的光的模场宽度。

公开(公告)号：US08805146B2

公开(公告)日：2014-08-12

申请号：US13009874

申请日：2011-01-20

申请人： Eisuke Sasaoka

发明人： Eisuke Sasaoka

IPC分类号： G02B6/36

CPC分类号： G02B6/02042 ,  G02B6/105

摘要： 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.

摘要翻译： 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：US07995198B2

公开(公告)日：2011-08-09

申请号：US12438464

申请日：2007-08-21

申请人： Eisuke Sasaoka ,  Yoshinori Yamamoto

发明人： Eisuke Sasaoka ,  Yoshinori Yamamoto

IPC分类号： G01N21/00

CPC分类号： G01B11/18 ,  G01D5/35348 ,  G01K11/32 ,  G01K2011/322 ,  G01M11/083 ,  G01M11/39

摘要： The present invention relates to an optical fiber characteristic distribution sensor comprising a structure to effectively reduce the measurement errors of position in the temperature distribution measurement etc. The sensor comprises an optical fiber section, part of which is installed in an object to be measured and to which probe light and pumping light are inputted in opposite directions. The optical fiber section includes a marker portion where data relating to the shape of a BGS in the maker has been preliminarily measured in a state where the optical fiber section is installed in a normal state. At the time of calculating the characteristic distribution in the longitudinal direction of the optical fiber section while measuring the data relating to the BGS shape, the errors of the calculated gain occurrence position are corrected, for example, by shifting the scanning range of phase difference between the probe light and the pumping light. The amount of shift of the scanning range of phase difference is given based on a difference value between the phase difference at the time of measurement when the BGS that reflects the gain that has occurred in the marker portion is measured, and the reference phase difference when data relating to the already known shape of the BGS in the marker portion has been preliminarily measured.

摘要翻译： 本发明涉及一种光纤特性分布传感器，包括有效降低温度分布测量等中位置的测量误差的结构。传感器包括光纤部分，其一部分安装在待测物体中，并且 探测光和泵浦光的方向相反。 光纤部分包括在光纤部分安装在正常状态的状态下已经预先测量了与制造商中的BGS的形状相关的数据的标记部分。 在测量与BGS形状相关的数据的同时计算光纤部分的纵向方向上的特性分布时，计算出的增益发生位置的误差被校正，例如通过将相位差的扫描范围 探头灯和抽光灯。 基于当测量反映在标记部分中发生的增益的BGS时的测量时的相位差之间的差值以及基准相位差，给出相位差的扫描范围的偏移量 已经预先测量了与标记部中的BGS的已知形状有关的数据。

公开(公告)号：US20110008058A1

公开(公告)日：2011-01-13

申请号：US12922100

申请日：2009-02-13

申请人： Eisuke Sasaoka

发明人： Eisuke Sasaoka

IPC分类号： H04B10/12

CPC分类号： G02B6/02328

摘要： The present invention relates to an optical communications system equipped with a structure, capable of applying a PBGF as an optical transmission line, by which high capacity information transmission is enabled by use of the PBGF. The optical communications system (1) is provided with an optical transmitter (10), an optical receiver (20) and an optical transmission line (30). The optical transmitter (10) outputs signal light, whose phase or optical frequency is modulated, into the optical transmission line (30). The optical transmission line (30) transmits the signal light outputted from the optical transmitter (10) to the optical receiver (20). The optical receiver (20) receives the signal light transmitted from the optical transmitter (10) via the optical transmission line (30). The optical transmission line (30) includes a photonic band gap fiber having a hollow core.

摘要翻译： 本发明涉及一种具有能够应用PBGF作为光传输线路的结构的光通信系统，通过使用PBGF可实现高容量信息传输。 光通信系统（1）设置有光发射机（10），光接收机（20）和光传输线路（30）。 光发送器（10）将其相位或光频率被调制的信号光输出到光传输线（30）中。 光传输线（30）将从光发射器（10）输出的信号光发送到光接收器（20）。 光接收器（20）经由光传输线（30）接收从光发射机（10）发射的信号光。 光传输线（30）包括具有中空芯的光子带隙光纤。