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公开(公告)号：US4984864A
公开(公告)日：1991-01-15
申请号：US454085
申请日：1989-12-21
申请人： Lee L. Blyler, Jr. , Gary J. Grimes
发明人： Lee L. Blyler, Jr. , Gary J. Grimes
CPC分类号： G02B6/4246 , G02B6/2808 , G02B6/4204 , G02B6/4212 , G02B6/4249
摘要： An optical splitter having a self-contained optical source with the optical core of the splitter being substantially numerical aperture matched to the optical source and to optical fibers connected to the splitter. By matching numerical apertures, efficient transfer of optical energy is achieved between the optical source and the connected optical fibers in spite of refractive index mismatch between the optical core and the connected optical fibers. The splitter is fabricated by inserting the optical source and optical fibers into a rigid cladding structure and filling the rigid cladding structure with a polymer which after curing becomes an optical core for communicating light from the optical source to the optical fibers.
摘要翻译： 具有独立光源的光分路器，其中分离器的光纤芯基本上与光源匹配的数值孔径以及连接到分路器的光纤。 通过匹配数值孔径，尽管光纤芯和连接的光纤之间的折射率不匹配，在光源和连接的光纤之间实现了光能的有效传输。 通过将光源和光纤插入刚性包层结构并用聚合物填充刚性包层结构来制造分束器，聚合物在固化后成为将光从光源传递到光纤的光纤芯。
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12.发明授权
公开(公告)号：US4974930A
公开(公告)日：1990-12-04
申请号：US434146
申请日：1989-11-13
IPC分类号： G02B6/14
CPC分类号： G02B6/14 , G02B6/021 , G02B6/02133 , G02B6/02114
摘要： A mode scrambling arrangement for a multimode optical fiber by irradiating the cladding using an ultra-violet light to change the index of refraction of the cladding. The cladding uses a material whose index of refraction is modified in response to ultra-violet light. The exposure time and intensity of the light required is determined by monitoring the mode pattern in the multimode fiber during the irradiation to provide the desired amount of mode scrambling.
摘要翻译： 一种用于多模光纤的模式加扰装置，其通过使用紫外光照射包层以改变包层的折射率。 包层使用其折射率响应于紫外线而被修改的材料。 所需的光的曝光时间和强度通过在照射期间监测多模光纤中的模式图案来确定，以提供所需量的模式加扰。
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公开(公告)号：US4761168A
公开(公告)日：1988-08-02
申请号：US910562
申请日：1986-09-22
IPC分类号： G02B6/44 , C03B37/02 , C03B37/027 , C03B37/10 , C03C25/10 , C03C25/12 , C03B37/023
CPC分类号： C03C25/12 , C03B37/02718
摘要： The speed at which optical fibers can be drawn and coated is significantly increased by efficiently stripping the gas boundary layer entrained by the moving fiber. The stripping is periodically repeated to ensure that the entrained flow is not re-established.
摘要翻译： 通过有效地剥离由移动的纤维夹带的气体边界层，可以显着提高光纤被拉伸和涂覆的速度。 周期性地重复剥离以确保夹带的流不再重新建立。
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公开(公告)号：US4691989A
公开(公告)日：1987-09-08
申请号：US880959
申请日：1986-06-27
申请人： Lee L. Blyler, Jr.
发明人： Lee L. Blyler, Jr.
CPC分类号： B29D11/00663 , G02B6/4402 , G02B6/443
摘要： It has been found that cables with encapsulated optical fibers incur unexpected losses in an optical communication system. These losses are substantially reduced by employing an elastomeric encapsulant that has an elastic modulus of at least 300 psi and that is capable of being removed without substantially affecting the fiber.
摘要翻译： 已经发现，具有封装光纤的电缆在光通信系统中引起意外的损失。 通过使用具有至少300psi的弹性模量并且能够被除去而不显着影响纤维的弹性密封剂，这些损失被显着降低。
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公开(公告)号：US4349587A
公开(公告)日：1982-09-14
申请号：US243269
申请日：1981-03-12
申请人： Charles J. Aloisio, Jr. , Lee L. Blyler, Jr. , George S. Brockway , Arthur C. Hart, Jr. , Carl R. Taylor
发明人： Charles J. Aloisio, Jr. , Lee L. Blyler, Jr. , George S. Brockway , Arthur C. Hart, Jr. , Carl R. Taylor
CPC分类号： C03C25/18
摘要： The specification describes techniques for coating fiber waveguides by passing the fiber through a reservoir of coating material while preventing the gross accumulation of bubbles in the reservoir. Preventing accumulation of bubbles improves coating concentricity and quality.
摘要翻译： 本说明书描述了通过使纤维通过涂层材料的储存器来涂覆纤维波导的技术，同时防止气泡在储存器中的大量积聚。 防止气泡的积聚提高了涂层的同心度和质量。
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公开(公告)号：US06636672B1
公开(公告)日：2003-10-21
申请号：US09349191
申请日：1999-07-07
IPC分类号： G02B636
CPC分类号： G02B6/25
摘要： The invention relates to plastic optical fiber (POF) processes and systems and involves improved non-polishing termination techniques. The techniques provide good physical and optical characteristics, i.e., smoothness, at the termination point, thereby providing lower losses than conventionally obtained. According to one embodiment, POF is cut while the fiber is under compression. According to another embodiment, the POF is notched and then pulled at a relatively high strain rate to induce fracture. The rate is such that the strain remains in the elastic region, i.e., the fiber exhibits brittle, as opposed to ductile, behavior during the strain. The brittle behavior provides a smooth termination surface, as opposed to a plastically-deformed surface.
摘要翻译： 本发明涉及塑料光纤（POF）工艺和系统，涉及改进的非抛光终止技术。 这些技术在终止点提供良好的物理和光学特性，即平滑度，从而提供比传统获得的更低的损失。 根据一个实施例，当纤维处于压缩状态时，切割POF。 根据另一实施例，POF被切口，然后以相对高的应变速率拉动以引起断裂。 速率使得应变保持在弹性区域中，即纤维表现出脆性，与在应变期间的延展性行为相反。 与塑性变形的表面相反，脆性行为提供了平滑的终止表面。
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公开(公告)号：US06265018B1
公开(公告)日：2001-07-24
申请号：US09387607
申请日：1999-08-31
IPC分类号： C03B3707
CPC分类号： G02B6/02038 , B29C47/00 , B29C47/0014 , B29D11/00682 , B29D11/00721
摘要： Fabricating graded index plastic optical fiber by diffusing a high molecular weight dopant within a step index plastic optical fiber after the step index plastic optical fiber has been drawn from a preform using a conventional draw tower in a first embodiment. Also, the step index plastic optical fiber may be fabricated by extruding one material circumferentially around another material, e.g., by use of a concentric nozzle. The dopant is diffused after the drawing or extruding of the step index plastic optical fiber by heating the plastic optical fiber to a temperature that causes a high rate of diffusion state while measuring the transmission bandwidth of the plastic optical fiber. When the predetermined specified transmission bandwidth is measured, the plastic optical fiber is immediately returned to an ambient temperature. In addition, the plastic optical fiber may be gradually heated to an equilibrium temperature that is just below the temperature required to produce the high rate of diffusion state. Once the equilibrium temperature has been achieved, additional heating is carried out to raise the temperature to that required to produce the high rate of diffusion and the transmission bandwidth is tested.
摘要翻译： 在第一实施例中，使用常规牵引塔从预成型件中取出阶梯折射率塑料光纤之后，通过在阶跃折射率塑料光纤中扩散高分子量掺杂剂来制造渐变折射率塑料光纤。 而且，阶跃折射率塑料光纤可以通过例如通过使用同心喷嘴将一种材料周向地围绕另一种材料周向地挤出来制造。 通过在塑料光纤的传输带宽测量的同时，通过将塑料光纤加热到导致高扩散速率的温度，在拉伸或挤出阶梯折射率塑料光纤之后，掺杂剂扩散。 当测量预定的指定传输带宽时，塑料光纤立即返回到环境温度。 此外，塑料光纤可以逐渐加热到刚好低于产生高扩散状态速率所需的温度的平衡温度。 一旦达到平衡温度，进行额外的加热，将温度提高到产生高扩散速率所需的温度，并测试传输带宽。
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公开(公告)号：US5153932A
公开(公告)日：1992-10-06
申请号：US590974
申请日：1990-10-01
CPC分类号： B29D11/0075 , G02B6/2804 , G02B6/2808 , Y10S264/65 , Y10S264/66 , Y10S425/041
摘要： An optical coupler using round optical fibers whose ends have been formed into a predefined shape to allow greater physical packing densities in order to achieve greater uniform illumination efficiency. The interstitial space between optical fibers is greatly reduced by thermoforming the ends of round optical fibers in a mold that makes a gradual transition from a circular shape to the predefined shape to avoid optical loss. Since the change in shape is gradual, the total cross-sectional area of the fibers remains constant; and optical loss is minimal becuase there is no reduction in mode volume. The predefined shape may be substantially square or rectangular. The core and cladding materials of the optical fiber are carefully chosen with respect to the glass transition state temperatures of both materials because the temperature at which the materials are formed by a mold are slightly above the glass transition state of the core or cladding, whichever is higher.
摘要翻译： 使用圆形光纤的光耦合器，其端部已经形成预定形状以允许更大的物理堆积密度，以获得更大的均匀照明效率。 通过在模具中热成形圆形光纤的端部，使得光纤之间的间隙空间大大降低，该模具从圆形逐渐过渡到预定形状以避免光损耗。 由于形状的变化是渐进的，纤维的总截面积保持不变; 并且光损耗最小，因为模式体积没有减小。 预定形状可以是大致正方形或矩形。 相对于两种材料的玻璃化转变状态温度，精心选择光纤的芯和包层材料，因为材料由模具形成的温度略高于芯或包层的玻璃化转变状态 更高。
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公开(公告)号：US5076096A
公开(公告)日：1991-12-31
申请号：US301938
申请日：1989-01-25
CPC分类号： G01N11/08 , G01N33/44 , G01N33/442
摘要： Various methods have been proposed for measuring the viscosity of thermosetting polymers. It has been found that these method are generally inaccurate. A test which avoids the inaccuracies of previous techniques is proposed. In this test the heated thermosetting resin is forced at a known flow rate through a runner and through a capillary tube at the end of the runner. By measuring the pressure differential across the capillary a meaningful measure of viscosity is obtained.
摘要翻译： 已经提出了用于测量热固性聚合物的粘度的各种方法。 已经发现这些方法通常是不准确的。 提出了一种避免以前技术不准确的测试。 在该测试中，加热的热固性树脂以已知的流速通过流道并通过流道末端的毛细管被迫。 通过测量毛细管两端的压差来获得有意义的粘度测量值。
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公开(公告)号：US4913508A
公开(公告)日：1990-04-03
申请号：US252091
申请日：1988-09-30
申请人： Lee L. Blyler, Jr. , Gary J. Grimes
发明人： Lee L. Blyler, Jr. , Gary J. Grimes
CPC分类号： G02B6/43 , G02B6/2808 , G02B6/4296
摘要： A relatively inexpensive and relatively efficient coupler is obtained by connecting two fiber collections with a polymer material, provided the numerical aperture of the two collections are relatively well-matched to each other and to the polymer region. This efficiency is achieved despite relatively large mismatches in the refractive index of the resin material relative to the fibers. Couplers for optical backplanes are produced in one embodiment utilizing plastic materials. In this technique, a collection of fibers is inserted on each end of an enclosure such as a tube that is filled with a polymer that is subsequently cured.
摘要翻译： 通过将两个纤维集合与聚合物材料连接来获得相对便宜且相对有效的耦合器，只要两个集合的数值孔径彼此相对良好地匹配并且与聚合物区域相匹配。 尽管树脂材料的折射率相对于纤维的折射率相对较大而实现了该效率。 用于光学背板的耦合器在一个实施例中利用塑料材料制造。 在这种技术中，纤维的集合被插入到外壳的每个端部，例如填充有随后固化的聚合物的管。
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