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公开(公告)号：US06807358B2
公开(公告)日：2004-10-19
申请号：US10232078
申请日：2002-08-30
IPC分类号： G02B600
CPC分类号： G02B6/3871 , G02B6/266 , G02B6/3843 , G02B6/3869
摘要： A variable attenuator has first and second substantially identical ferrules or capillaries, each being mounted in a barrel or splice housing and extending toward each other, with their distal ends being separated by a gap of a first width. The width of the gap is controlled by a sleeve into which the ferrules are inserted, the ends of the sleeve butting against the front faces of the barrels. The ferrules are made by producing a glass rod mounted between the barrels and having a bore offset from and parallel to the centerline of the rod and breaking or cleaving the rod at its longitudinal center. The broken ends are then polished. The barrels are keyed to a housing member so that the offset bores are coincident in the zero position as defined by the keys.
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公开(公告)号：US4473942A
公开(公告)日：1984-10-02
申请号：US370369
申请日：1982-04-21
申请人： David N. Ridgway
发明人： David N. Ridgway
CPC分类号： G02B6/25 , Y10T225/12 , Y10T225/325 , Y10T225/357 , Y10T29/49195
摘要： Optical fibers are cleaved with high precision by a technique that yields flat endfaces that are perpendicular to the axis of the fiber within 1 degree, and typically within 0.5 degree. This is very advantageous for obtaining low loss splices of fibers, especially single mode fibers. In the present technique, a fiber is secured in two linearly aligned chucks in a sequence that allows one end to rotate unconstrained to minimize tortion. An axial tension is then applied in the fiber, which is next scored. The fiber then typically breaks, but cleaving can be promoted by applying further tension, or introducing moisture, if necessary.
摘要翻译： 通过一种技术可以高精度地切割光纤，该技术产生垂直于光纤轴线的平坦端面在1度内，通常在0.5度以内。 这对于获得纤维的低损耗接头是非常有利的，特别是单模纤维。 在本技术中，纤维被固定在两个直线对齐的卡盘中，其顺序为允许一端旋转而不受约束以最小化折磨。 然后在纤维中施加轴向张力，接下来刻痕。 纤维然后通常断裂，但是如果需要，可以通过施加进一步的张力或引入水分来促进裂解。
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3.发明授权Mechanical connection for polarization-maintaining optical fiber and methods of making 失效用于偏振保持光纤的机械连接及其制作方法
公开(公告)号：US4919509A
公开(公告)日：1990-04-24
申请号：US306414
申请日：1989-02-03
CPC分类号： G02B6/3869 , G02B6/3812 , G02B6/3882 , G02B6/3851 , G02B6/3861
摘要： A mechanical connection arrangement for two polarization-maintaining optical fibers (20--20) includes two ferrules (40--40). Each of the optical fibers to be connected includes an outer cladding layer (23) having a hybrid cross section transverse to a longitudinal axis of the fiber. The hybrid cross section is defined by two parallel sides and by two generally arcuate end portions. One of the polarization axes of the fiber is parallel to the parallel sides of the fiber. The ferrules were adjacent portions in a length (110) of stock material and are positioned in support means such that end faces of the ferrules which were contiguous to each other prior to the ferrules being separated from the length of material are adjacent to each other in the connection arrangement. Each ferrule prior to separation has a tab (126) associated therewith such that the tab of the adjacent portions are aligned longitudinally. An end portion of each optical fiber to be connected is disposed in a substantially rectangular passageway (122) formed through a ferrule and terminating in an end face. Each tab is normal to a long side of the rectangular passageway of the associated ferrule and hence is normal to the parallel sides of the outer cladding layer cross section of the optical fiber disposed therein. The ferrules are held to cause the tabs to be aligned longitudinally thereby causing the angular orientation of the polarization axes and the cores of the connected fibers to be aligned.
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4.发明授权
公开(公告)号：US5598496A
公开(公告)日：1997-01-28
申请号：US572359
申请日：1995-12-14
申请人： Jerry M. Anderson , Robert W. Filas , David W. Johnson, Jr. , Norman R. Lampert , Eliezer M. Rabinovich , David N. Ridgway
发明人： Jerry M. Anderson , Robert W. Filas , David W. Johnson, Jr. , Norman R. Lampert , Eliezer M. Rabinovich , David N. Ridgway
CPC分类号： G02B6/3854 , C03C17/40 , G02B6/3835 , G02B6/3869 , G02B6/3821
摘要： The inventive optical fiber connector comprises a glass ferrule that is strengthened by etching of the outer surface of the ferrule, followed by deposition thereon of a protective layer. Exemplarily, the ferrule is a vitreous silica ferrule drawn from a preform that was made by a sol-gel process. The ferrule is etched in buffered HF, and the protective layer is electroless deposited Ni, with a thin layer of Au thereon. Significant strength increases, exceeding 200%, are obtainable, with the strength being relatively unchanged after even a severe abrasion test.
摘要翻译： 本发明的光纤连接器包括通过蚀刻套圈的外表面并随后在其上沉积保护层而被加强的玻璃套圈。 示例性地，套圈是由通过溶胶 - 凝胶法制成的预成型件拉出的玻璃态硅胶套圈。 在缓冲HF中蚀刻套圈，并且保护层是无电沉积的Ni，其上具有薄的Au层。 显着的强度提高，超过200％可以获得，强度在经过严格磨损试验后相对不变。
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公开(公告)号：US4940307A
公开(公告)日：1990-07-10
申请号：US286441
申请日：1988-12-19
IPC分类号： G02B6/38
CPC分类号： G02B6/255 , G02B6/2555 , G02B6/382
摘要： Optical fiber repair splices are effected by mating two fiber ends in an elongate open-sided housing containing a fiber-receiving capillary tube. The tube may be factory-inserted to achieve a predetermined alignment of the tube with the fiber guide-way axis of the housing. A stepping fiber passage in the housing guides the fiber end into the tube. The fiber progresses to a point in the tube's interior where the capillary track is visible through a slot in the tube. The splicer visually observes mating of the fiber ends through the slot. The tube slot also permits application of index-matching material and adhesive to the mated fiber ends. During splicing, a mounting jig holds the underside of the housing, freeing the splicer to manipulate and view the fibers.
摘要翻译： 光纤修复接头通过将两个纤维端部配合在包含纤维接收毛细管的细长开口侧壳体中来实现。 管可以是工厂插入的，以实现管与壳体的纤维导向轴的预定对准。 壳体中的步进纤维通道将纤维端引导到管中。 纤维进入管内部的一个点，其中毛细管轨迹通过管中的狭槽可见。 拼接器目视观察纤维端部通过狭槽的配合。 管槽还允许将匹配材料和粘合剂应用于配合的纤维端部。 在拼接期间，安装夹具保持壳体的下侧，释放拼接器以操纵和观察纤维。
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