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1. 发明授权

US06301412B1 Apparatus and method for making multi-branching optical coupler 失效
标题翻译：制造多分支光耦合器的装置和方法
公开(公告)号：US06301412B1
公开(公告)日：2001-10-09
申请号：US09106019
申请日：1998-06-29
申请人： Tsuneo Mori , Masaaki Shirota , Seiki Ejima , Jun Abe , Sayuri Maeda , Kazuo Koya
发明人： Tsuneo Mori , Masaaki Shirota , Seiki Ejima , Jun Abe , Sayuri Maeda , Kazuo Koya
IPC分类号： G02B626
CPC分类号： G02B6/2856
摘要： A mask having a center hole for passing through a center fiber, which is one of multiple fibers, and multiple surrounding holes for passing through surrounding fibers, which are the remainder of the multiple fibers, and a stress adjusting unit for holding stresses generated in the center fiber and surrounding fibers to a desired constant value, respectively, are installed. The surrounding fibers are rotated around the center fiber by rotating the mask. The center fiber and the surrounding fibers that have been twisted around the center fiber are heated with a heating apparatus and drawn. The center fiber and the surrounding fibers are fixed using a clamp installed between the stress adjusting unit and the heating apparatus.
摘要翻译：具有用于穿过作为多根纤维之一的中心纤维的中心孔的掩模和用于穿过作为多纤维的其余部分的周围纤维的多个环绕孔以及用于保持在所述多个纤维中产生的应力的应力调节单元中心纤维和周围纤维分别安装到所需的恒定值。通过旋转掩模使周围的纤维围绕中心纤维旋转。围绕中心纤维扭转的中心纤维和周围的纤维用加热装置加热并拉伸。中心纤维和周围的纤维使用安装在应力调节单元和加热装置之间的夹具来固定。

2. 发明授权

US5440420A Optical amplifier 失效
标题翻译：光放大器
公开(公告)号：US5440420A
公开(公告)日：1995-08-08
申请号：US186294
申请日：1994-01-25
申请人： Tsuneo Mori , Kazuo Koya
发明人： Tsuneo Mori , Kazuo Koya
IPC分类号： G02B6/293 , G02B6/34 , G02F1/35 , H01S3/06 , H01S3/067 , H01S3/07 , H01S3/10 , H01S3/30
CPC分类号： H04B10/291 , H01S3/06754 , H04B10/2912 , G02B6/29332
摘要： Herein disclosed is an optical amplifier which permits sufficient reduction of light-transmission loss when it is incorporated into an optical communication system as a part thereof. The optical amplifier comprises an optical fiber 8 for amplification having a length sufficient for stimulated emission through excitation by an excitation laser beam and sufficient for amplifying a transmitted laser beam; an optical fiber 17 for transmission; and an optical wavelength division multiplexer 6 formed by partially fusing, under drawing conditions, the optical fibers 8 and 17 at a portion in the proximity to the light-incident end of the fiber 8 for amplification. The optical amplifier comprises the optical wavelength division multiplexer 6 formed from a part of the optical fiber 8 for amplification and, therefore, permits substantial reduction in the number of fused portions required for the connection thereof to an optical communication system upon incorporation thereof into the system. For this reason, the connection loss of light can substantially be reduced and accordingly the overall efficiency for amplification is substantially increased.
摘要翻译：这里公开了一种光放大器，其作为其一部分被并入到光通信系统中时可以充分降低光传输损耗。光放大器包括用于放大的光纤8，其具有通过激发激光束激发而受激发射的足够长度并足以放大发射的激光束的长度; 用于传输的光纤17; 以及光纤波分多路复用器6，其在拉伸条件下，在光纤8的光入射端附近的一部分处进行部分熔融而形成，用于放大。光放大器包括由用于放大的光纤8的一部分形成的光波分复用器6，因此，在将光纤通信系统结合到系统中时，允许将其连接到光通信系统所需的熔接部分的数量显着减少。为此，可以显着降低光的连接损耗，从而显着提高放大的整体效率。

3. 发明授权

US5404415A Optical fiber coupler and method for preparing same 失效
标题翻译：光纤耦合器及其制备方法
公开(公告)号：US5404415A
公开(公告)日：1995-04-04
申请号：US186296
申请日：1994-01-25
申请人： Tsuneo Mori , Kazuo Koya
发明人： Tsuneo Mori , Kazuo Koya
IPC分类号： G02B6/28 , G02B6/26
CPC分类号： G02B6/2835
摘要： In an optical fiber coupler comprising a plurality of optical fibers bundled together and a light-coupling portion which is formed by partially fusing and drawing these bundled fibers and which permits branching of light rays incident upon one of these fibers into the other fibers at a predetermined branching ratio, the optical fiber coupler has a difference between the branching ratio thereof determined immediately after the fusing and drawing operation and that determined after accommodating the coupler in a protective case and then adhering it to the case, equal to or less than 5%. Such an optical fiber coupler can be produced by bundling a plurality of optical fibers 1 and 2, fusing and drawing a part of the bundled optical fibers with heating, fixing the relative positions of these optical fibers 1 and 2 immediately after the fusing and drawing operation and then accommodating in and fixing to a protective case. If the foregoing difference in the branching ratio is not more than 5%, the difference between the branching ratios determined after the fusing and drawing operation and determined after the coupler is subjected to a thermal shock test is reduced to a level of not more than 2%. Therefore, the coupler does not suffer from any substantial change in properties even after the thermal shock test and thus can practically be used with high reliability.
摘要翻译：在包括多个捆扎在一起的光纤的光纤耦合器和通过部分地熔合和拉伸这些捆扎的光纤而形成的光耦合部分，并且允许以预定的方式将入射到这些光纤之一的光线分支到另一个光纤中光纤耦合器在定影和拉伸操作之后确定的分支比率之间的差异以及将耦合器容纳在保护壳体中之后确定的分支比率之间的差异，然后将其粘附到壳体上等于或小于5％。这样的光纤耦合器可以通过捆扎多根光纤1和2，通过加热对部分捆扎的光纤进行熔合和拉制来制造，在定影和拉伸操作之后立即固定这些光纤1和2的相对位置然后容纳并固定到保护壳。如果上述分支比的差异不大于5％，则在熔融和拉伸操作之后确定的并且在耦合器之后确定的分支比之间的差异比进行热冲击试验之后，降低至不超过2 ％。因此，即使在热冲击试验之后，耦合器也不会遭受特性的任何显着变化，因此实际上可以高度可靠地使用。

4. 发明授权

US5420950A Wide wavelength range-optical fiber coupler and method for the preparation thereof 失效
标题翻译：宽波长范围光纤耦合器及其制备方法
公开(公告)号：US5420950A
公开(公告)日：1995-05-30
申请号：US200226
申请日：1994-02-23
申请人： Kazuo Koya , Tsuneo Mori
发明人： Kazuo Koya , Tsuneo Mori
IPC分类号： G02B6/28 , G02B6/26
CPC分类号： G02B6/2835
摘要： A wide wavelength range-coupler whose light-branching ratio shows low wavelength-dependency, which is provided with a well-shaped light-coupling portion and excellent optical properties and which can easily be connected to other optical fibers as well as a method for the production thereof are herein provided. The light-coupling portion 3 of the optical fiber coupler is formed by fusing and orientating a plurality of single mode optical fibers 1 and 2 partially arranged parallel to one another and these optical fibers 1 and 2 have cores 1a and 2a which are different from one another in diameter, but are substantially identical in the outer diameter of the clad and in the mode field diameter. Each single mode optical fiber as a material for the coupler has a core diameter and a mode field diameter which are correlated through a quadratic function and therefore, there can be selected two optical fibers 1 and 2 which are identical to one another in the mode field diameter, but differ in the core diameter.
摘要翻译：光分支比低波长依赖性的宽波长范围耦合器，其具有良好的光耦合部分和优异的光学性质，并且可以容易地连接到其他光纤，以及用于在此提供其生产。光纤耦合器的光耦合部分3通过将多个单模光纤1和2彼此并联布置而定向并形成，这些光纤1和2具有不同于一个的芯1a和2a 另一个直径，但是在包层的外径和模场直径上基本相同。作为耦合器的材料的每个单模光纤具有通过二次函数相关的芯直径和模场直径，因此可以选择在模场中彼此相同的两个光纤1和2 直径，但芯径不同。

5. 发明授权

US5329602A Optical fiber coupler 失效
标题翻译：光纤耦合器
公开(公告)号：US5329602A
公开(公告)日：1994-07-12
申请号：US69698
申请日：1993-05-28
申请人： Tsuneo Mori , Kazuo Koya
发明人： Tsuneo Mori , Kazuo Koya
IPC分类号： G02B6/28 , G02B6/287 , G72B6/26
CPC分类号： G02B6/2835
摘要： An improvement is proposed for decreasing the variation in the coupling ratio of an optical fiber coupler after a heat shock test. In an optical fiber coupler which is an elongated intergral body formed by fusing a plural number of optical fibers side-by-side consisting of two straightly columnar parts and a biconical part therebetween formed by drawing and adhesively bonded to a reinforcing base with a coating layer of an adhesive therebetween, the improvement can be achieved by limiting the zone where the coating layer of an adhesive to the surface of each of the straightly columnar parts within a range from the boundary between the straightly columnar part and the biconical part to a point 8 mm apart from the boundary.
摘要翻译：提出了在热冲击试验后降低光纤耦合器的耦合比的变化的改进。在光纤耦合器中，该光纤耦合器是通过将由两个直柱部分并排的多个光纤并排而形成的细长整体形成的，并且通过拉伸粘合而形成的双锥形部分，之间的粘合剂，可以通过将粘合剂的涂层在直线柱部分和双锥形部分之间的边界的范围内限定到每个直柱部分的表面的区域到达点8来实现改进 mm以外的边界。

6. 发明授权

US5295219A Supporting member for optical fiber coupler 失效
标题翻译：光纤耦合器支撑构件
公开(公告)号：US5295219A
公开(公告)日：1994-03-15
申请号：US969087
申请日：1992-10-30
申请人： Kazuo Koya , Tsuneo Mori , Yukio Fujimaki
发明人： Kazuo Koya , Tsuneo Mori , Yukio Fujimaki
IPC分类号： G02B6/28 , G02B6/26
CPC分类号： G02B6/2835 , G02B6/2856
摘要： Herein provided is a support member for supporting an optical fiber coupler formed by arranging a plurality of optical glass fibers parallel to one another, then welding and drawing a part thereof wherein a long and thin reinforcing material of quartz whose external is at least partially formed into a circular shape is accommodated in a cylindrical metal case while coming the material into contact with the inner wall of the case; the optical fiber coupler is arranged along the reinforcing material; a portion of the optical fiber coupler which is not welded and drawn comes in contact with the reinforcing material and a part of the contact portion of the optical coupler is fixed to the material with an adhesive.
摘要翻译：本发明提供一种用于支撑通过将多个光学玻璃纤维彼此平行布置而形成的光纤耦合器的支撑构件，然后焊接并拉出其中的一部分，其中外部至少部分形成为石英的长而薄的增强材料圆筒状的金属壳体在将材料与壳体的内壁接触的同时容纳圆形，光纤耦合器沿着增强材料布置; 未被焊接和拉伸的光纤耦合器的一部分与增强材料接触，并且光耦合器的接触部分的一部分用粘合剂固定到材料上。

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