公开(公告)号：US5620494A

公开(公告)日：1997-04-15

申请号：US474907

申请日：1995-06-07

申请人： Eisuke Sasaoka ,  Yuji Kobayashi ,  Tomomi Moriya ,  Yoichi Ishiguro ,  Shigeru Semura

发明人： Eisuke Sasaoka ,  Yuji Kobayashi ,  Tomomi Moriya ,  Yoichi Ishiguro ,  Shigeru Semura

IPC分类号： G02B6/28 ,  C03B37/07 ,  C03B37/15 ,  G02B6/255

CPC分类号： G02B6/2835

摘要： The present invention provides a method for manufacturing an optical fiber coupler in which an optical fiber is elongated and heated by using a heating source under a constant tension. The heat source is controlled based on the ratio of a target elongating speed and an actual elongating speed of the optical fiber.

摘要翻译： 本发明提供了一种制造光纤耦合器的方法，其中光纤被拉长并通过使用恒定张力的加热源加热。 基于目标延长速度与光纤的实际延长速度的比率来控制热源。

公开(公告)号：US07234881B2

公开(公告)日：2007-06-26

申请号：US09962246

申请日：2001-09-26

申请人： Rei Koike ,  Kenji Io ,  Tatsuo Saito ,  Tomomi Moriya ,  Yukio Nomura ,  Yoshiji Sato ,  Katsuichi Omori ,  Yoshiharu Meguro ,  Kazumasa Oishi ,  Keiji Osaka

发明人： Rei Koike ,  Kenji Io ,  Tatsuo Saito ,  Tomomi Moriya ,  Yukio Nomura ,  Yoshiji Sato ,  Katsuichi Omori ,  Yoshiharu Meguro ,  Kazumasa Oishi ,  Keiji Osaka

IPC分类号： G02B6/255

CPC分类号： G02B6/2558 ,  B29C45/0053 ,  B29C45/14549 ,  B29C2035/0827 ,  B29C2045/0075 ,  B29C2045/14557 ,  B29C2045/2671 ,  B29L2011/0075

摘要： A molding die 1 is constituted by an upper die 1a and a lower die 1b which are made of a material transparent to an ultraviolet light, and has a cavity 3 constituted by grooves 2c, 2d, whereas a resin injection gate 4 and a resin exit gate 7 are provided so as to communicate with the cavity 3. A junction of an optical fiber 10 is inserted into the cavity 3. A UV-curable resin is injected into the cavity 3 surrounding an exposing portion of the glass optical fiber 11 from the resin injection gate 4 positioned at one of coating ends of the optical fiber 10, whereas a part thereof is discharged from the resin exit gate 7 positioned at the other coating end. The ultraviolet light is emitted through the lower die 1b so as to cure the resin, thereby forming a reinforcement resin coating. As a consequence, bubbles can be prevented from occurring due to the residual air within the reinforcement resin coating in the junction of the optical fiber 10.

摘要翻译： 成形模1由上模1a和下模1b构成，该上模1a和下模1b由对紫外线透明的材料制成，并且具有由槽2c，2d组成的空腔3，而树脂注入口4 并且设置有树脂出口7以与空腔3连通。 将光纤10的接合部插入空腔3内。 将UV固化树脂从位于光纤10的一个涂层端部的树脂注入口4注入到围绕玻璃光纤11的露出部的空腔3内，其一部分从树脂出口 7位于另一个涂层端。 紫外线通过下模1b发射，以使树脂固化，由此形成增强树脂涂层。 结果，可以防止由于光纤10的接合处的增强树脂涂层中的残留空气而发生气泡。

公开(公告)号：US20050081565A1

公开(公告)日：2005-04-21

申请号：US10501523

申请日：2003-08-08

申请人： Shuichiro Kato ,  Tomomi Moriya ,  Yuichi Ohga

发明人： Shuichiro Kato ,  Tomomi Moriya ,  Yuichi Ohga

IPC分类号： C03B23/043 ,  C03B23/045 ,  C03B23/049 ,  C03B32/00 ,  C03B37/012 ,  C03C23/00

CPC分类号： C03B32/00 ,  C03B23/043 ,  C03B23/045 ,  C03B23/0496 ,  C03B37/01228 ,  C03B37/01254 ,  C03B2201/03

摘要： An object of the present invention is to provide a method of highly purifying a glass body, which enables high purification of the glass body while decreasing deformation of the glass body at a high degree, to provide a highly purified glass body, and to provide a method and an apparatus for manufacturing a glass tube, which can obtain a highly purified glass tube. A method of highly purifying a glass body according to the present invention is to apply a voltage between electrodes 1 and 2, which make contact with the glass pipe 11, in a nearly radial direction of the glass pipe 11 while heating the glass pipe 11 to a temperature within a range less than 1300° C. Further, a method of manufacturing a glass tube according to the invention is to generate a voltage gradient in a radial direction of a glass tube 106 by applying voltages to the inner circumferential side and the outer circumferential side of the glass tube 106 when a glass rod 103 is gradually formed into the glass tube 106 by heating the glass rod 103 to soften the glass rod 103 and by bringing a boring jig 130 into contact with a softened portion of the glass rod 103.

摘要翻译： 本发明的目的是提供一种玻璃体的高纯化方法，能够高度净化玻璃体，同时降低玻璃体的高度变形，提供高精度的玻璃体， 方法和制造玻璃管的装置，其可以获得高纯度的玻璃管。 根据本发明的高纯度玻璃体的方法是在将玻璃管11加热至玻璃管11的大致径向的同时，在与玻璃管11接触的电极1和2之间施加电压， 温度在小于1300℃的范围内。此外，根据本发明的玻璃管的制造方法是通过向内周侧和外侧施加电压而在玻璃管106的径向上产生电压梯度 当玻璃棒103通过加热玻璃棒103以软化玻璃棒103并且使镗孔夹具130与玻璃棒103的软化部分接触而逐渐形成玻璃管106时，玻璃管106的圆周侧 。

公开(公告)号：US06997016B2

公开(公告)日：2006-02-14

申请号：US10796052

申请日：2004-03-10

申请人： Tomomi Moriya ,  Masashi Onishi ,  Kazuyuki Sohma ,  Masaaki Hirano ,  Eiji Yanada ,  Tadashi Enomoto

发明人： Tomomi Moriya ,  Masashi Onishi ,  Kazuyuki Sohma ,  Masaaki Hirano ,  Eiji Yanada ,  Tadashi Enomoto

IPC分类号： C03B23/26 ,  C03B23/045

CPC分类号： C03B37/01254 ,  C03B19/1469 ,  C03B23/045 ,  C03B23/0493 ,  C03B23/0496 ,  Y02P40/57

摘要： Stress exerted on an inner or outer circumferential side of a glass tube 6 is controlled when a glass material 3 is heated and softened by a heating element 41 provided around the glass material 3 and a piercing plug 31 is relatively pressed into a softened region of the glass material 3 to thereby form the glass material 3 into the glass tube 6 gradually. For example, the control of the stress can be carried out by controlling an internal or external pressure of the glass tube 6. As a result, the deformation of the glass tube 6 just after piercing is prevented so that the glass tube 6 can be obtained with high quality. It is also possible to solve the problem that cracks may occur easily at the time of reheating because of residual stress distribution after cooling.

摘要翻译： 当玻璃材料3被设置在玻璃材料3周围的加热元件41加热和软化时，控制施加在玻璃管6的内周侧或外周侧上的应力，并且穿孔塞31被相对地压入到 玻璃材料3，从而逐渐将玻璃材料3形成到玻璃管6中。 例如，可以通过控制玻璃管6的内部或外部压力来进行应力的控制。 结果，防止刚刚穿刺之后的玻璃管6的变形，从而能够以高质量获得玻璃管6。 也可以解决由于冷却后的残余应力分布而在再加热时容易发生裂纹的问题。

公开(公告)号：US06138481A

公开(公告)日：2000-10-31

申请号：US175364

申请日：1998-10-20

申请人： Tatsuhiko Saito ,  Tomomi Moriya

发明人： Tatsuhiko Saito ,  Tomomi Moriya

IPC分类号： G02B6/00 ,  C03B23/043 ,  C03B23/047 ,  C03B37/012 ,  C03B37/029

CPC分类号： C03B23/043 ,  C03B37/0124 ,  C03B37/01257 ,  Y10T117/106 ,  Y10T117/1072

摘要： In a heating furnace which holds at least one end of a glass rod with a holding portion and elongates the glass rod by softening the glass rod successively from the other end portion thereof with heating while applying a tensile force thereto, the heating furnace comprises a tubular portion through which the glass rod to be elongated is inserted such as to be longitudinally movable; heater, positioned within the tubular portion such as to circumferentially surround the glass rod, for heating the glass rod; a moving portion through which one end of the glass rod is inserted; bellows the ends of which are respectively secured to the moving portion and the tubular portion and which is longitudinally expandable and contractible and composed of at least a double cylinder surrounding the part of the glass rod such as to block an outside air from flowing into the heating furnace; and gas supply line for supplying, for purging, an inert gas into a space within the tubular portion and the inner bellows as well as the space between inner and outer bellows.

摘要翻译： 在将玻璃棒的至少一端保持在保持部的加热炉中，通过在向其另一端部进行加热而使玻璃棒从其另一端部依次软化而拉伸玻璃棒的同时向其施加拉力，加热炉包括管状 插入待拉长的玻璃棒的部分可纵向移动; 加热器，定位在管状部分内，以便周向地围绕玻璃棒，用于加热玻璃棒; 移动部分，玻璃棒的一端插入其中; 波纹管的端部分别固定到移动部分和管状部分，并且其纵向可膨胀和收缩，并且由围绕玻璃棒部分的至少一个双圆柱组成，以阻挡外部空气流入加热 炉; 以及气体供给管线，用于向管状部分和内部波纹管内的空间以及内部和外部波纹管之间的空间提供惰性气体。

公开(公告)号：US06976796B2

公开(公告)日：2005-12-20

申请号：US10434106

申请日：2003-05-09

申请人： Rei Koike ,  Kazunari Hattori ,  Tomomi Moriya

发明人： Rei Koike ,  Kazunari Hattori ,  Tomomi Moriya

IPC分类号： G02B6/255 ,  G02B6/38

CPC分类号： G02B6/2555 ,  G02B6/2551 ,  G02B6/2552

摘要： A method for handling a fusion-spliced optical fiber and a transferring jig for transporting the optical fiber are provided. The jig is capable of holding the fusion-spliced optical fiber in a state in which a given tension is applied at the spliced portion, and stopping the application of such tension if needed. The jig is easy to transport and set to each of separate processing processes. In the method, a fusion-spliced optical fiber is clamped at coated portions thereof on both sides of the fusion-spliced portion by a pair of clamps of the jig and transported by the jig holding the optical fiber in a state wherein a given tension is applied thereto through the clamps.

摘要翻译： 提供了一种处理熔接光纤的方法和用于传送光纤的传送夹具。 夹具能够将熔接光纤保持在接合部分施加给定张力的状态，并且如果需要则停止施加这种张力。 夹具易于运输并设置为每个单独的加工过程。 在该方法中，熔接的光纤通过夹具的一对夹具夹持在熔接部分的两侧的涂覆部分处，并通过夹持光纤的夹具在给定张力为 通过夹具施加到其上。

公开(公告)号：US06886998B2

公开(公告)日：2005-05-03

申请号：US10150929

申请日：2002-05-21

申请人： Osamu Kasuu ,  Motonori Nakamura ,  Tomomi Sano ,  Tomomi Moriya ,  Shinji Kayou

发明人： Osamu Kasuu ,  Motonori Nakamura ,  Tomomi Sano ,  Tomomi Moriya ,  Shinji Kayou

IPC分类号： G02B6/255

CPC分类号： G02B6/2551

摘要： An object is to provide an optical fiber fusion splicing method in which splice loss can be reduced, and also to provide an arc-heating unit used for heating the fusion spliced part of an optical fiber. The method comprises a process of fusion-splicing together the end faces of two optical fibers and a process of continuously heating the fusion spliced part by arc while moving one pair of electrodes provided opposite to each other across the fusion spliced part. The arc heating process is performed with the operation for decreasing arc temperature. The operation for decreasing arc temperature may be achieved by flowing a gas having a molecular weight greater than the average molecular weight of air into a gas atmosphere in which arc heating is performed, or by adding a modulation to an electric discharge current such that the maximum value becomes equal to or more than an electric current for starting arc discharge and the minimum value becomes more than zero and less than the electric current for starting arc discharge.

摘要翻译： 本发明的目的是提供一种可以减少接头损耗的光纤熔接方法，并且还提供用于加热光纤的熔接部分的电弧加热单元。 该方法包括将两根光纤的端面熔接在一起的工序和通过电弧连续地加热熔接部的工序，同时使跨接在熔接部上的彼此相对设置的一对电极移动。 通过降低电弧温度的操作进行电弧加热处理。 降低电弧温度的操作可以通过将分子量大于空气的平均分子量的气体流入进行电弧加热的气体气氛中，或通过向放电电流添加调制，使得最大值 值变为等于或大于开始电弧放电的电流，并且最小值变得大于零并且小于用于开始电弧放电的电流。

公开(公告)号：US20060112733A1

公开(公告)日：2006-06-01

申请号：US11270663

申请日：2005-11-10

申请人： Tomohiro Ishihara ,  Tomomi Moriya

发明人： Tomohiro Ishihara ,  Tomomi Moriya

IPC分类号： C03B37/012

CPC分类号： C03B37/0146

摘要： Provide are safe equipment and method, in which gas leakage through junction part between a furnace muffle tube and a lid can be restrained, for manufacturing a high quality glass preform. The equipment for manufacturing a glass preform comprises (1) a furnace muffle tube in which a soot glass deposit body is placed, (2) a lid for sealing up an inlet-outlet opening of the furnace muffle tube, and (3) a heater for heating the soot glass deposit body. The method of producing a soot glass deposit body comprises steps of (1) placing a soot glass deposit body into a furnace muffle tube, (2) sealing up the inlet-outlet opening of the furnace muffle tube with a lid, (3) heating the soot glass deposit body so as to vitrify it into a transparent glass body. In these equipment and the method, the surface roughness in the respective junction surfaces of the furnace muffle tube and the lid is 1.0 μm or less, the flatness degree in the respective junction surfaces of the furnace muffle tube and the lid is 30 μm or less, and the load on the junction surface is equal to or more than 98 N.

摘要翻译： 提供安全的设备和方法，其中可以限制通过炉马弗管和盖之间的接合部分的气体泄漏来制造高质量的玻璃预制件。 制造玻璃预制件的设备包括（1）放置烟灰玻璃沉积体的炉马弗管，（2）用于密封炉马弗管的入口 - 出口的盖子，以及（3）加热器 用于加热烟灰玻璃沉积体。 烟炱玻璃沉积体的制造方法包括以下步骤：（1）将烟炱玻璃沉积体放置在炉马弗管中，（2）用盖密封炉马弗管的入口 - 出口，（3）加热 烟灰玻璃沉积体，以将其玻璃化成透明玻璃体。 在这些设备和方法中，炉马弗管和盖的各接合面中的表面粗糙度为1.0μm以下，炉马弗管和盖的各接合面的平坦度为30μm以下 ，并且接合面上的负载等于或大于98N。

公开(公告)号：US06854293B2

公开(公告)日：2005-02-15

申请号：US10068852

申请日：2002-02-11

申请人： Osamu Kasuu ,  Motonori Nakamura ,  Tomomi Sano ,  Tomomi Moriya ,  Shinji Kayou

发明人： Osamu Kasuu ,  Motonori Nakamura ,  Tomomi Sano ,  Tomomi Moriya ,  Shinji Kayou

IPC分类号： G02B6/255 ,  C03B37/15

CPC分类号： G02B6/2551

摘要： A method of fusion-splicing optical fibers having different mode field diameters or small mode field diameters is provided, which method is advantageous in that the splicing loss is smaller. The method comprises a fusion splicing process in which fusion splicing is performed by butting end faces of two optical fibers together and a heat treatment process in which the fusion spliced part of the optical fibers and the vicinity thereof are heated. The heat treatment process is performed by moving an arc heating unit in a direction other than the Y-axis direction (a direction perpendicular to the Z-axis direction and the opposing direction of arc electrodes) and Z-axis direction (the axial direction of the optical fiber), via the fusion spliced part in a Y-Z plane formed by the Y-axis direction and Z-axis direction.

摘要翻译： 提供了具有不同模场直径或小模场直径的熔接光纤的方法，该方法的优点在于拼接损耗较小。 该方法包括熔接过程，其中通过将两根光纤的端面对接在一起进行熔接，并且加热熔接了光纤的一部分及其附近的热处理工艺。 通过使电弧加热单元沿除了Y轴方向（与Z轴方向垂直的方向和电弧电极的相反方向）以及Z轴方向（轴方向 光纤）经由Y轴方向和Z轴方向形成的YZ平面中的熔接部分。

公开(公告)号：US06438997B1

公开(公告)日：2002-08-27

申请号：US09535531

申请日：2000-03-27

申请人： Tatsuhiko Saito ,  Tomomi Moriya

发明人： Tatsuhiko Saito ,  Tomomi Moriya

IPC分类号： C03B3707

CPC分类号： C03B37/0124 ,  C03B37/01205

摘要： In a method of elongating a glass preform comprising the steps of holding both ends of the glass preform 1a with a first holding section 2 and a second holding section 3, respectively; moving the first holding section 2 and the second holding section 3 in a longitudinal direction of the glass preform 1a with the moving speed of the first holding section 2 faster than that of the second holding section 3 and, at the same time, heating and softening the glass preform 1a by a heating section 4 successively; and elongating the glass preform 1a by a tensile force applied thereto, so as to form an elongated body 1c; an electric furnace is employed in the heating section 4; and said method further comprising the steps of setting a reference value R1 with respect to an outside diameter at a specific position 1d in a tapered region 1b in the glass preform 1a in the process of elongating; acquiring an actually measured value R2 at the specific position 1d; and controlling the moving speed of the first holding section 2 and/or second holding section 3 according to a value (R2/R1) obtained from the reference value R1 and actually measured value R2.

摘要翻译： 一种拉伸玻璃预制件的方法，包括以下步骤：分别将玻璃预成型体1a的两端保持在第一保持部分2和第二保持部分3上; 在第一保持部分2的移动速度比第二保持部分3的移动速度更快的同时沿着玻璃预制件1a的纵向方向移动第一保持部分2和第二保持部分3，同时加热和软化 玻璃预制件1a依次通过加热部4; 并通过施加到其上的张力拉长玻璃预成型体1a，以形成细长体1c; 在加热部4中使用电炉; 并且所述方法还包括以下步骤：在拉伸过程中，在玻璃预成型体1a的锥形区域1b中，在特定位置1d处的外径设定基准值R1; 在特定位置1d获取实际测量值R2; 并根据从参考值R1和实际测量值R2获得的值（R2 / R1）来控制第一保持部分2和/或第二保持部分3的移动速度。