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公开(公告)号：US5309536A
公开(公告)日：1994-05-03
申请号：US899783
申请日：1992-06-17
申请人： Hiroshi Suganuma , Tomoyuki Hattori , Hiroaki Takimoto , Yoshiharu Okawa , Hiroshi Yokota , Kazuhiko Arimoto
发明人： Hiroshi Suganuma , Tomoyuki Hattori , Hiroaki Takimoto , Yoshiharu Okawa , Hiroshi Yokota , Kazuhiko Arimoto
CPC分类号： G02B6/2856 , G02B6/2835
摘要： The first process for producing an optical fiber coupler includes a first step wherein at least one of the optical fibers to be used is stripped of the coating, a second step in which the bare portion of that optical fiber is heated for a predetermined time to diffuse the dopants, a third step wherein the other optical fibers which have not been heat-treated are stripped of their coating, a fourth step in which the bare portions of all the optical fibers are heated as they are brought into intimate contact, thereby forming a unitary portion, and a fifth step wherein the unitary portion is drawn via heating to form the coupling portion of an optical fiber coupler. The second process for producing an optical fiber coupler includes stripping the coating from at least one optical fiber, fixing the fiber so as to impart an axial stress thereto and then heating the bare portion of the stripped optical fiber thereby thinning the diameter of the heated portion, and then proceeding in the same manner as described with respect to the third through fifth steps of the first embodiment of the present invention. The processes according to the present invention enable a wide-band optical fiber coupler to be easily produced without using optical fibers of different structures but using optical fibers of identical structures.
摘要翻译： 制造光纤耦合器的第一种方法包括：第一步骤，其中使用的光纤中的至少一种被剥离涂层;第二步骤，将该光纤的裸露部分加热预定时间以扩散 掺杂剂，第三步骤，其中未经热处理的其它光纤被剥离，其第四步是将所有光纤的裸露部分紧密接触加热，从而形成 以及第五步骤，其中整体部分通过加热被拉伸以形成光纤耦合器的耦合部分。 制造光纤耦合器的第二工艺包括从至少一根光纤剥离涂层，固定光纤以向其施加轴向应力，然后加热剥离的光纤的裸露部分，从而使加热部分的直径变薄 ，然后以与关于本发明的第一实施例的第三至第五步骤所述相同的方式进行。 根据本发明的方法使得能够容易地制造宽带光纤耦合器，而不使用不同结构的光纤，而是使用相同结构的光纤。
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2.发明授权
公开(公告)号：US5261018A
公开(公告)日：1993-11-09
申请号：US840891
申请日：1992-02-26
申请人： Hiroshi Suganuma , Tomoyuki Hattori , Junichi Yoshikawa , Hiroaki Takimoto , Hiroshi Yokota , Nobuo Tomita , Kazuhiko Arimoto
发明人： Hiroshi Suganuma , Tomoyuki Hattori , Junichi Yoshikawa , Hiroaki Takimoto , Hiroshi Yokota , Nobuo Tomita , Kazuhiko Arimoto
CPC分类号： G02B6/2558 , G02B6/2835
摘要： The invention provides an optical-coupler reinforcing member for fixing and reinforcing a fiber-coupler body and a method of performing the reinforcing. The reinforcing member includes heat-shrinkage tubes which are shrunk by heating, and a hollow protection pipe provided in the heat-shrinkage tubes. Cylindrical heat-fusible adhesive members are provided on opposite ends of the protection pipe, and heating is made such that a fusing portion of an optical-fiber coupler body is inserted through the reinforcing member so that the heat-fusible adhesive members and the heat-shrinkage tubes are shrunk by heating to thereby fix and reinforce the optical coupler body.
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公开(公告)号：US5208883A
公开(公告)日：1993-05-04
申请号：US923616
申请日：1992-08-03
CPC分类号： G02B6/2835 , G02B6/2856
摘要： A method of reinforcing a multiple optical fiber coupling unit is provided including the steps of removing a portion of longitudinal coatings of optical fibers of the multiple optical fiber coupling unit to expose glass portions of said optical fibers; fusing a portion of the exposed glass portions so as to optically couple the optical fibers; extending the fused portion to a predetermined state; fixing non-extended portions of the exposed glass portions on a first reinforcing substrate with a first adhesive; and fixing the first reinforcing substrate on a second reinforcing substrate with a second adhesive. The multiple optical fiber unit coupler made by this method has a transmission characteristic that does not substantially change even with a temperature change and under high humidity.
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公开(公告)号：US5247598A
公开(公告)日：1993-09-21
申请号：US875284
申请日：1992-04-29
CPC分类号： G02B6/2558 , G02B6/2821 , G02B6/2835 , G02B6/36
摘要： A reinforcing apparatus for an optical-fiber coupler is formed by placing fused optical fibers into a grooved U-shaped base structure. A cover which has a different longitudinal length than the base structure is centered on top of the U-shaped base structure. There exists an exposed groove section of the U-shaped base structure which lies on either side of the cover. An adhesive is inserted into these exposed groove sections so as to fix the reinforcing casing and the optical-fiber coupler to each other.
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5.发明授权
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
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。
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6.发明授权Method of producing optical fiber couplers using rectifier rods to provide even heat distribution 失效使用整流棒制造光纤耦合器以提供均匀散热的方法
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
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。
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公开(公告)号：US5325450A
公开(公告)日：1994-06-28
申请号：US25643
申请日：1993-03-03
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。
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8.发明授权
公开(公告)号：US5430821A
公开(公告)日：1995-07-04
申请号：US184061
申请日：1994-01-21
CPC分类号： G02B6/2835
摘要： The present relates to the protective structure for an optical fiber coupler made from bare fiber parts of a plurality of optical fibers therein, the bare fiber parts being formed by removing the coating of the plurality of optical fibers and comprises a case made of material having a coefficient of thermal expansion equivalent to optical fibers and having space for enclosing the optical fiber coupler, and fiber supporting portions, being arranged inside of the space of the case and being fused with the bare fiber parts.
摘要翻译： 本发明涉及由其中的多根光纤的裸光纤部件制成的光纤耦合器的保护结构，所述裸光纤部件通过去除多根光纤的涂层而形成，并且包括由具有 相当于光纤的热膨胀系数和具有用于封装光纤耦合器的空间和纤维支撑部分，布置在壳体的空间内部并与裸光纤部分熔合。
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公开(公告)号：US5548672A
公开(公告)日：1996-08-20
申请号：US391687
申请日：1995-02-21
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。
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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
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。
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