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1.发明授权
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
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。
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公开(公告)号：US5205851A
公开(公告)日：1993-04-27
申请号：US766202
申请日：1991-09-27
IPC分类号： G02B6/28
CPC分类号： G02B6/2856 , G02B6/2835
摘要： In a method of producing an optical fiber coupler, in which glass portions of a plurality of optical fibers are heated so as to be fusion bonded to each other and then, are heated so as to be stretched, the improvement comprising: a gas burner which acts as a heat source and has a plurality of gas nozzles arranged in an axial direction of the optical fibers so as to be fixed in position during heating of the glass portions.
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3.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：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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公开(公告)号：US5395101A
公开(公告)日：1995-03-07
申请号：US212689
申请日：1994-03-14
CPC分类号： G02B6/2835 , G02B6/3616 , G02B6/3636 , Y10S269/902 , Y10S269/903
摘要： A clamp for optical fiber couplers manufacturing apparatus comprises a slotted member having a slot into which optical fibers are inserted and having an opening outwardly winder from the slot so that the optical fibers are introduced into the slot, and a pushing member movably disposed adjacent the slot for pushing the optical fibers through the opening into the slot, wherein the slotted member is away from the pushing member when the fibers are not clamped, and the slotted member is fixed at a position where the slotted member clamps the fibers.
摘要翻译： 用于光纤耦合器制造装置的夹具包括具有狭槽的开槽部件，光纤插入该狭缝中，并且具有从槽开口向外卷绕的狭槽，使得光纤被引入槽中;以及推动构件，其可移动地设置在狭槽附近 用于将光纤通过开口推入槽中，其中当纤维未被夹紧时，开槽构件远离推动构件，并且开槽构件固定在开槽构件夹持纤维的位置。
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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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公开(公告)号：US5176730A
公开(公告)日：1993-01-05
申请号：US843941
申请日：1992-02-18
IPC分类号： G02B6/28
CPC分类号： G02B6/2835
摘要： The invention provides a method for producing an optical-fiber coupler with a preset branching ratio. The present invention relates to a method in which part of a plurality of optical fibers are made to closely contact with each other so as to form a coupler. The coupler is heated to thereby obtain a predetermined branching ratio; the flow rate of a gas to be supplied to a heat source is increased/decreased by a quantity proportional to a difference between the drawing speed and a preset drawing speed while predetermined tension is applied to the optical fibers.
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公开(公告)号：US5318610A
公开(公告)日：1994-06-07
申请号：US105587
申请日：1993-07-29
IPC分类号： G01M11/08 , G02B6/255 , G02B6/28 , C03B37/023
CPC分类号： G01M11/088 , G02B6/2551 , G02B6/2835
摘要： The present invention provides a fiber coupler manufacturing apparatus comprising a pair of fiber holding portions and a fiber clamp disposed on each of the fiber holding portions for holding at least two optical fibers. A weight and pulley system is arranged wherein a first weight is coupled to each of the fiber holding portions to pull the fiber holding portions away from each other to apply tension to the optical fibers. A heating unit is disposed between the fiber holding portions and proximate to the optical fibers to heat the optical fibers. A second weight is coupled to either the fiber holding portions or the first weight and rests on a movable platform. As the movable platform descends in a vertical direction, the second weight applies additional force to the fiber holding portions and thus applies additional tension to the optical fibers.
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9.发明授权Fiber coupler manufacturing apparatus having an automatic breaking test device 失效具有自动断裂测试装置的光纤耦合器制造装置
公开(公告)号：US5306323A
公开(公告)日：1994-04-26
申请号：US907023
申请日：1992-07-01
IPC分类号： G01M11/08 , G02B6/255 , G02B6/28 , C03B37/023
CPC分类号： G01M11/088 , G02B6/2551 , G02B6/2835
摘要： The present invention provides a fiber coupler manufacturing apparatus comprising a pair of fiber holding portions and a fiber clamp disposed on each of the fiber holding portions for holding at least two optical fibers. A weight and pulley system is arranged wherein a first weight is coupled to each of the fiber holding portions to pull the fiber holding portions away from each other to apply tension to the optical fibers. A heating unit is disposed between the fiber holding portions and proximate to the optical fibers to heat the optical fibers. A second weight is coupled to either the fiber holding portions or the first weight and rests on a movable platform. As the movable platform descends in a vertical direction, the second weight applies additional force to the fiber holding portions and thus applies additional tension to the optical fibers.
摘要翻译： 本发明提供了一种光纤耦合器制造装置，其包括一对光纤保持部和设置在每个光纤保持部上的用于保持至少两根光纤的光纤夹。 布置了重量和滑轮系统，其中第一重物联接到每个纤维保持部分以将纤维保持部分彼此远离以向光纤施加张力。 加热单元设置在光纤保持部分之间并且靠近光纤以加热光纤。 第二重物耦合到纤维保持部分或第一重物，并且搁置在可移动平台上。 当可移动平台在垂直方向上下降时，第二重量对纤维保持部分施加额外的力，因此对光纤施加额外的张力。
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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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