公开(公告)号：US11689311B2

公开(公告)日：2023-06-27

申请号：US17440410

申请日：2020-03-06

申请人： NIPPON TELEGRAPH AND TELEPHONE CORPORATION

发明人： Atsuko Kawakita ,  Kazutaka Hara ,  Yasutaka Kimura ,  Kenji Horikawa ,  Hiroyuki Furukawa

IPC分类号： H04J14/02 ,  G02B6/287 ,  H04B10/272

CPC分类号： H04J14/025 ,  G02B6/287 ,  H04B10/272

摘要： An object is to provide an optical communication system capable of controlling the output ratio by port and by wavelength for incident light of different wavelengths, a method of determining the split ratio of an uneven-split optical splitter for controlling the output ratio by port and by wavelength, and a transmission range determination method for the optical communication system. The split ratio determination method for an uneven-split optical splitter according to the present invention uses the melt-draw distance to adjust the split ratio of each fiber-optic splitter included in the uneven-split optical splitter such that the light output from the farthest ONUs among each of the ports connected under the ports B to M of the uneven-split optical splitter arrives with the minimum reception sensitivity at OLT receivers in a PON system.

公开(公告)号：US09164241B2

公开(公告)日：2015-10-20

申请号：US13945545

申请日：2013-07-18

申请人： Honeywell International Inc.

发明人： Charles Lo

IPC分类号： G02B6/287 ,  G02B6/28 ,  B29L11/00

CPC分类号： G02B6/287 ,  B29L2011/0075 ,  G02B6/2856 ,  Y10T156/1052

摘要： A node for a low loss passive optical hub is provided. The low loss passive optical hub includes a 1:N-split fiber and a plastic-optical fiber. The 1:N-split fiber has a fused-fractional end and N second-fractional ends. The 1:N-split fiber is formed from N sub-fibers. The N sub-fibers each have a first-fractional end and a second-fractional end. The N first-fractional ends are fused to form the fused-fractional end. The plastic-optical fiber has a first end and a second end. The first end of the plastic-optical fiber is optically coupled to the fused-fractional end of the 1:N-split fiber.

摘要翻译： 提供了一种用于低损耗无源光学集线器的节点。 低损耗无源光学集线器包括1：N分离光纤和塑料光纤。 1：N分裂光纤具有熔融分数端和N个第二分数端。 1：N分割纤维由N个子纤维形成。 N个子纤维各自具有第一分数末端和第二分数末端。 N个第一分数端被融合以形成熔融分数端。 塑料光纤具有第一端和第二端。 塑料光纤的第一端光耦合到1：N分割光纤的熔断端。

公开(公告)号：US09063289B1

公开(公告)日：2015-06-23

申请号：US12495746

申请日：2009-06-30

申请人： Jason N. Farmer ,  Ronii C. Mehl ,  Robert G. Waarts

发明人： Jason N. Farmer ,  Ronii C. Mehl ,  Robert G. Waarts

IPC分类号： G02B6/26 ,  G02B6/28 ,  G02B6/287

CPC分类号： G02B6/2821 ,  G02B6/02366 ,  G02B6/0283 ,  G02B6/0285 ,  G02B6/0288 ,  G02B6/03638 ,  G02B6/0365 ,  G02B6/03672 ,  G02B6/03683 ,  G02B6/10 ,  G02B6/2552 ,  G02B6/28 ,  G02B6/2804 ,  G02B6/2835 ,  G02B6/2856 ,  G02B6/287 ,  G02B6/4203 ,  G02B6/4296 ,  G02B27/106 ,  G02B27/1073 ,  H01S5/4012

摘要： Multimode beam combiners include at least one gradient-step index optical fiber in which a refractive index difference at a core/cladding interface is selected to provide a numerical aperture so as to provide stable, uniform beam output. One or more such fibers is formed into a tapered bundle than can be shaped to provide a selected illuminated aperture. The fibers in the bundle can be separated by respective tapered claddings so as to be optically coupled or uncoupled. Illumination systems can include a plurality of such fibers coupled to a plurality of laser diodes or other light sources.

摘要翻译： 多模光束组合器包括至少一个梯度折射率光纤，其中选择芯/包层界面处的折射率差以提供数值孔径，以便提供稳定，均匀的光束输出。 一个或多个这样的纤维形成为可以被成形为提供所选择的照明孔径的锥形束。 束中的纤维可以通过相应的锥形包层分离，以便被光耦合或非耦合。 照明系统可以包括耦合到多个激光二极管或其它光源的多个这样的光纤。

公开(公告)号：US20110097037A1

公开(公告)日：2011-04-28

申请号：US12617021

申请日：2009-11-12

申请人： Charles B. KUZNIA ,  Joseph F. AHADIAN ,  Richard T. HAGAN ,  Richard J. POMMER

发明人： Charles B. KUZNIA ,  Joseph F. AHADIAN ,  Richard T. HAGAN ,  Richard J. POMMER

IPC分类号： G02B6/26 ,  G02B6/32 ,  G02B6/287

CPC分类号： G02B6/4204 ,  G01N21/55 ,  G02B6/2938 ,  G02B6/32 ,  G02B6/4214 ,  G02B6/4246 ,  G02B6/4249 ,  Y10T29/49769

摘要： A component for coupling light bi-directionally between optical waveguides and optoelectronic devices is described. This component can be inexpensively manufactured and fits within the existing form-factor of fiber optic transceivers or transmitters, and has features for efficiently coupling laser light to a waveguide and light from the same waveguide to a detector. The described components can be formed as an array to operate within system that operation over parallel optical fibers. Applicability for these components is for optical time domain reflectometry, bi-directional optical communications, remote fiber sensing, and optical range finders.

摘要翻译： 描述了用于在光波导和光电子器件之间双向耦合光的组件。 该组件可以廉价地制造并且适合于现有的光纤收发器或发射器的形状因子，并且具有用于有效地将激光耦合到波导和从同一波导到检测器的光的特征。 所描述的部件可以形成为在平行光纤上操作的系统内操作的阵列。 这些组件的适用范围是光学时域反射测量，双向光通信，远程光纤传感和光学测距仪。

公开(公告)号：US06947644B2

公开(公告)日：2005-09-20

申请号：US10193258

申请日：2002-07-12

申请人： Katsuaki Kondo ,  Kazuo Imamura ,  Minoru Yoshida ,  Yasuhide Sudo ,  Yoshiyuki Imada ,  Tatsuhiro Kawamura ,  Takashi Okuyama ,  Hideki Okuno ,  Atsushi Toyohara

发明人： Katsuaki Kondo ,  Kazuo Imamura ,  Minoru Yoshida ,  Yasuhide Sudo ,  Yoshiyuki Imada ,  Tatsuhiro Kawamura ,  Takashi Okuyama ,  Hideki Okuno ,  Atsushi Toyohara

IPC分类号： G02B6/00 ,  G02B6/28 ,  G02B6/287 ,  G02B6/36 ,  H01S3/067 ,  H02G3/04 ,  H02G3/30 ,  H02G11/00 ,  H02G15/08 ,  G02B6/26 ,  G02B6/44

CPC分类号： G02B6/3608 ,  G02B6/2821 ,  H01S3/06704

摘要： The present invention includes a sheet material, a first optical fiber, a second optical fiber optically coupled to the first optical fiber in portions thereof, and an optical fiber coupler constituted in the portions where the two optical fibers are coupled, and those of the first and second optical fibers, and the optical fiber coupler are integrally held in the sheet material.

摘要翻译： 本发明包括片材，第一光纤，在其部分光耦合到第一光纤的第二光纤，以及在两个光纤耦合的部分中构成的光纤耦合器，以及第一光纤 和第二光纤，并且光纤耦合器一体地保持在片材中。

公开(公告)号：US06942399B2

公开(公告)日：2005-09-13

申请号：US10603783

申请日：2003-06-26

申请人： Nanayuki Takeuchi ,  Toshiharu Hoshi ,  Kenzaburou Iijima ,  Hidetoshi Yasutake ,  Yoshikazu Ishii ,  Satoru Tomaru ,  BooSeok Hwang

发明人： Nanayuki Takeuchi ,  Toshiharu Hoshi ,  Kenzaburou Iijima ,  Hidetoshi Yasutake ,  Yoshikazu Ishii ,  Satoru Tomaru ,  BooSeok Hwang

IPC分类号： G02B6/287 ,  G02B6/28 ,  G02B6/36 ,  G02B6/255

CPC分类号： G02B6/3636 ,  G02B6/2821

摘要： An optical fiber coupler reinforcing member comprises an approximately rectangular member formed by a hard material, and has a flat surface along the longitudinal direction thereof. In addition, the shape thereof in cross-section is a hexagonal shape which inscribes a cylindrical member. Furthermore, a recess having a U-shaped cross-section is formed in the longitudinal direction of the above-mentioned approximately rectangular member and houses coupling section. The coupling section housed within the recess is fixed at both ends of the recess by an adhesive or the like. In addition, both ends of the inner wall surface of the recess have been given bevel sections. As a result, the optical fiber coupler reinforcing member having high reliability at low cost, with which the strength with respect to external force is improved and with which processability and the assembly operations of the optical fiber coupler are easy, are provided.

摘要翻译： 一种光纤耦合器加强件包括由硬质材料形成的大致矩形的部件，并且沿着其长度方向具有平坦的表面。 此外，其截面形状是一个六边形形状，其内嵌有圆柱形构件。 此外，在上述近似矩形构件的纵向方向上形成具有U形横截面的凹部，并且容纳联接部。 容纳在凹部内的联接部通过粘合剂等固定在凹部的两端。 此外，凹部的内壁表面的两端已经被给予斜面部分。 结果，提供了具有高成本的高可靠性的光纤耦合器加强构件，其中相对于外力的强度得到改善，并且光纤耦合器的加工性和组装操作容易。

公开(公告)号：US06922510B2

公开(公告)日：2005-07-26

申请号：US10219326

申请日：2002-08-16

申请人： Takaaki Hatanaka

发明人： Takaaki Hatanaka

IPC分类号： G02B6/12 ,  G02B6/122 ,  G02F1/01 ,  G02F1/225 ,  G02F1/313 ,  G02B6/125 ,  G02B6/24 ,  G02B6/287 ,  G02F1/025

CPC分类号： G02B6/12004 ,  G02B6/12021 ,  G02B6/122 ,  G02B2006/12159 ,  G02F1/0147 ,  G02F1/225

摘要： An optical device includes at least one kind of and a plurality of optical circuits optically connected in series wherein the optical circuits are arranged in a spiral on a common substrate.

摘要翻译： 光学装置包括串联光学连接的至少一种和多个光学电路，其中光学电路以公共基底上的螺旋布置。

公开(公告)号：US5966484A

公开(公告)日：1999-10-12

申请号：US932548

申请日：1997-09-17

申请人： Hayato Yuuki

发明人： Hayato Yuuki

IPC分类号： G02B6/255 ,  G02B6/28 ,  G02B6/287 ,  H04B10/2581 ,  H04B10/27 ,  H04B10/29 ,  G02B6/26

CPC分类号： G02B6/2856 ,  G02B6/2835 ,  G02B6/2552

摘要： A light branching and coupling device excellent both in transmitting performance and in distributing performance in which the intermediate portion of an optical fiber 10a (10b) is thermally drawn to form light transmission fiber portions 11a and 15a (11b and 15b) and a light branching and coupling fiber portion 13a (13b) having a diameter smaller than that of the light transmission fiber portions and, at the same time, form tapering fiber portions 12a and 14a (12b and 14b) between the light transmission fiber portions and the light branching and coupling fiber portion so that the tapering fiber portions are tapered off gradually toward the light branching and coupling fiber portion 13a (13b) side. The light branching and coupling fiber portions 13a and 13b thus formed are fused with each other.

摘要翻译： 一种在光纤10a（10b）的中间部分被拉伸以形成光传输光纤部分11a和15a（11b和15b）和光分支的传输性能和分布性能方面都优异的光分支和耦合装置， 光纤部分13a（13b）的直径小于透光纤维部分的纤维部分13a（13b），同时在光传输光纤部分和光分支和耦合之间形成锥形光纤部分12a和14a（12b和14b） 使得锥形纤维部分逐渐朝向光分支和耦合纤维部分13a（13b）侧渐缩。 由此形成的光分支和耦合光纤部分13a和13b彼此熔合。

公开(公告)号：US5412745A

公开(公告)日：1995-05-02

申请号：US238384

申请日：1994-05-05

申请人： David L. Weidman ,  Donald R. Young, Jr.

发明人： David L. Weidman ,  Donald R. Young, Jr.

IPC分类号： G02B6/02 ,  G02B6/26 ,  G02B6/28 ,  G02B6/287

CPC分类号： G02B6/2835 ,  G02B6/03633

摘要： A fiber optic coupler comprising a plurality of single-mode optical fibers, each of which is tapered to form a small diameter section that extends in contiguous relationship with the small diameter sections of the other fibers to form a coupling region. Each of the fibers has a core surrounded by a cladding of refractive index lower than that of the core. At least one of the fibers has a refractive index pedestal of refractive index n.sub.i between said core and cladding, wherein n.sub.1 >n.sub.i >n.sub.2, n.sub.1 and n.sub.2 being the refractive indices of the core and cladding, respectively.

摘要翻译： 一种光纤耦合器，包括多个单模光纤，每个单模光纤被锥形以形成与其它光纤的小直径部分相邻延伸的小直径部分，以形成耦合区域。 每个纤维具有由折射率低于芯的折射率的包层包围的芯。 所述纤维中的至少一个在所述芯和包层之间具有折射率为ni的折射率基座，其中n1，n2，n1和n2分别是芯和包层的折射率。

公开(公告)号：US5146520A

公开(公告)日：1992-09-08

申请号：US642266

申请日：1991-01-16

申请人： Hayato Yuuki ,  Takeharu Ito

发明人： Hayato Yuuki ,  Takeharu Ito

IPC分类号： G02B6/28 ,  B29C65/08 ,  G02B6/287

CPC分类号： B29C66/69 ,  B29C65/08 ,  B29C66/1122 ,  B29C66/81431 ,  B29C66/81457 ,  B29C66/8322 ,  G02B6/2804 ,  G02B6/2821 ,  G02B6/2835 ,  B29C66/73921 ,  B29C66/73941 ,  B29C66/8122 ,  B29C66/81423 ,  B29C66/8163

摘要： The present invention is directed to an optical coupler, only formed by a plurality of all plastic fibers, and a method of producing the same. Two all plastic fibers each of which has a core are placed in contact with each other over a predetermined length. Ultrasonic vibration is applied to a contacting portion of the all plastic fibers so as to bond the cores with each other at the contacting portion. Thus, the optical coupler with a low-excess-loss can easily be produced.