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121. 发明申请

WO1991015789A1 OPTICAL SIGNAL DISTRIBUTION NETWORK 审中-公开
标题翻译：光信号分配网络
公开(公告)号：WO1991015789A1
公开(公告)日：1991-10-17
申请号：PCT/US1991002019
申请日：1991-03-26
申请人： LOCKHEED MISSILES & SPACE COMPANY, INC.
发明人： LOCKHEED MISSILES & SPACE COMPANY, INC. , LYTEL, Richard, Saul , TICKNOR, Anthony, James
IPC分类号： G02B06/26
CPC分类号： G02F1/3132 , G02B6/43
摘要： A network for distributing a set of independent high-frequency electrical signals comprises an optical rail waveguide (11) that is fed with a measured amount of optical power from a single source (10), and a set of optical railtaps (20, 21, 200) positioned at sequential locations along the optical rail waveguide (11). Each optical railtap functions (20, 21, 200) to extract a corresponding specified fraction of the measured amount of optical power from the optical rail waveguide (11) when a corresponding one of the independent electrical signals is applied thereto. The fractions of the measured amount of optical power extracted from the optical rail waveguide (11) at the corresponding sequential locations along the optical rail waveguide (11) constitute a set of independent high-frequency optical signals, which correspond to the independent high-frequency electrical signals.

122. 发明申请

WO1990014606A1 OPTICAL SWITCHES USING CHOLESTERIC OR CHIRAL NEMATIC LIQUID CRYSTALS 审中-公开
标题翻译：光学开关使用液晶或者CHIRAL NEMATIC液晶
公开(公告)号：WO1990014606A1
公开(公告)日：1990-11-29
申请号：PCT/US1990002369
申请日：1990-05-03
申请人： CORNELL RESEARCH FOUNDATION, INC. , E.I. DU PONT DE NEMOURS & COMPANY
发明人： CORNELL RESEARCH FOUNDATION, INC. , E.I. DU PONT DE NEMOURS & COMPANY , SHANKAR, Narendra, K. , MORRIS, Jeffrey, A. , POLLOCK, Clifford, R. , YAKYMYSHYN, Christopher, P. , WHITEHEAD, Wilson, T.
IPC分类号： G02B06/26
CPC分类号： G02F1/1326 , G02B5/3016 , G02F1/31 , Y10S359/90
摘要： Fiber optic switches (10) using layers of cholesteric or chiral nematic liquid crystals (CLCs) are disclosed. The CLC layer (12) acts both as a polarization beamsplitter and as a reflector by decomposing incoming unpolarized light into two orthogonal circularly polarized components. In a number of embodiments, switchable waveplates (14, 16) are employed to switch the polarization direction of each of the polarization components. The components are then reflected back toward the CLC layer (12) where they are recombined into a transmitted unpolarized beam (26). The direction of transmission depends on the circular sense of the polarized components, and therefore on the state of the switchable waveplates (14, 16). In other embodiments, the CLCs are used actively by exposing them selectively to electric or magnetic fields or to heat which cause a phase change that temporarily neutralizes the circular polarization effect. In this manner, the CLCs can be used as switch elements by themselves.

123. 发明申请

WO1990005317A1 OPTICAL INTERFACE MEANS 审中-公开
标题翻译：光学界面手段
公开(公告)号：WO1990005317A1
公开(公告)日：1990-05-17
申请号：PCT/SE1989000645
申请日：1989-11-09
申请人： PHARMACIA AB , SJÖDIN, Håkan
发明人： PHARMACIA AB
IPC分类号： G02B06/26
CPC分类号： G01N21/648 , G01N21/0332 , G01N21/05 , G01N21/552 , G01N21/553 , G01N2021/0346 , G01N2021/212 , G01N2021/5957 , G02B6/34
摘要： An optical interface means for non-permanent passive coupling of light between two optically transparent media comprises a support member (3), and at least one shaped body (6) of an optically transparent elastic material supported thereby and adapted to resiliently contact said solid medium or media, said elastic material having a matching refractive index in respect of said media.
摘要翻译：用于在两个光学透明介质之间的非永久性无源耦合光的光学接口装置包括支撑构件（3）和由其支撑的光学透明弹性材料的至少一个成形体（6），并适于弹性地接触所述固体介质或介质，所述弹性材料相对于所述介质具有匹配的折射率。

124. 发明申请

WO1989002609A1 FIBER OPTIC COUPLER 审中-公开
标题翻译：光纤耦合器
公开(公告)号：WO1989002609A1
公开(公告)日：1989-03-23
申请号：PCT/US1988003174
申请日：1988-09-14
申请人： ASTER CORPORATION
发明人： ASTER CORPORATION , STOWE, David
IPC分类号： G02B06/26
CPC分类号： G02B6/2835 , G02B6/2821 , G02B6/2856 , G02B2006/2865
摘要： A fiber optic coupler has at least two optical fibers (68, 70) each having a core (52) with a cladding material (54) disposed thereabout. The fibers, in a limited length coupling region, (56) have the cladding material removed and the core exposed, the thickness of the cladding material (54) increasing in smooth transition from immediately adjacent the exposed core (52) in the limited length coupling region (56). The fibers (68, 70) in the limited length coupling (56) region are joined by coalescing. In preferred embodiments, in the limited length coupling region, (56) a portion of the core (52) is removed, the core diameter in the coupling region (58) being less than the core diameter in regions adjacent thereto, (60, 62) the outer diameter of the core decreasing in smooth transition from immediately adjacent the cladding material (64, 66). A method and product of forming these couplers or others with the fibers in crossed relationship are also described.
摘要翻译：光纤耦合器具有至少两个光纤（68,70），每个光纤具有芯部（52），其中设置有围绕其的覆层材料（54）。在有限长度的耦合区域中，纤维（56）具有去除包层材料并且芯体暴露，包层材料（54）的厚度在与受暴露的芯部（52）紧邻的有限长度的耦合区域（56）。在有限长度的耦合（56）区域中的纤维（68,70）通过聚结结合。在优选实施例中，在有限长度的耦合区域中，（56）芯部（52）的一部分被去除，耦合区域（58）中的芯直径小于与其相邻的区域中的芯直径（60,62 ）芯的外径从紧邻包层材料（64,66）的平滑过渡减小。还描述了以交叉关系形成这些耦合器或其它纤维的方法和产品。

125. 发明申请

WO1989002608A1 FIBER OPTIC COUPLER 审中-公开
标题翻译：光纤耦合器
公开(公告)号：WO1989002608A1
公开(公告)日：1989-03-23
申请号：PCT/US1988003162
申请日：1988-09-14
申请人： ASTER CORPORATION
发明人： ASTER CORPORATION , XU, Jisen
IPC分类号： G02B06/26
CPC分类号： B29C66/69 , B29C65/68 , B29C66/1122 , B29C66/526 , B29C66/71 , B29D11/00673 , B29L2011/00 , G02B6/2821 , G02B6/2835 , G02B6/2856 , G02B2006/2865 , B29K2033/12 , B29K2033/08
摘要： A fiber optic coupler and method for forming such coupler is shown in which the substance of the fibers (12, 14) is preselected to have a heat fusing temperature in a range achievable by exterior heating of a shrink sleeve (18), and the fibers (12, 14) are heat fused-together along a limited length region within the shrunken sleeve (18) as a result of heat and inter-fiber pressure applied to the fibers (12, 14) by exterior heating of the shrink sleeve (18). In preferred embodiments, a filler rod (50) is disposed alongside the optical fibers (12, 14) and pressed thereagainst by the shrink sleeve (18), the exterior of the rod (50) preferably of fluorocarbon plastic, having an index of refraction lower than the index of refraction of the fibers (12, 14) in the fused region. The interior of the filler rod (50) preferably comprises an elongated heat transfer element (52, 56) having a heat transfer coefficient greatly exceeding the heat transfer coefficient of the fibers (12, 14). Where few fibers are involved, the fibers are twisted about themselves and the filler or heat transfer element is substantially straight. For larger numbers of fibers, such as more than four, the fibers are loosely introduced in substantially parallel condition to fill the sleeve and are fused together by heating of the sleeve. A plastic coupler is also featured in which the cladding layer (32) is completely absent in a fused region, and the cores (34) in that region are deformed and fused together in a core-mode coupling relationship as the result of application of inter-fiber pressure under fusing conditions, preferably heat fusing conditions. Preferably the clad layer (32) is removed by solvent and care is taken to ensure that the exposed portion of core (34) has effective cladding, e.g. by action of a sleeve (18), a filler rod (50) and air spaces. Other important features relating to ease of manufacture and improvements in performance of optic fiber couplers are disclosed.
摘要翻译：示出了用于形成这种耦合器的光纤耦合器和方法，其中纤维（12,14）的物质被预选为具有在通过收缩套筒（18）的外部加热可实现的范围内的热定影温度，并且纤维（12,14）由于通过收缩套筒（18）的外部加热施加到纤维（12,14）上的热和纤维间的压力而沿缩小的套筒（18）内的有限长度区域热熔合在一起）。在优选实施例中，填充杆（50）沿着光纤（12,14）并排设置，并被收缩套筒（18）挤压，棒（50）的外部优选为氟碳塑料，具有折射率低于熔融区域中的纤维（12,14）的折射率。填料杆（50）的内部优选地包括具有大大超过纤维（12,14）的传热系数的传热系数的细长传热元件（52,56）。在涉及很少的纤维的情况下，纤维在其周围扭曲，并且填料或传热元件基本上是直的。对于较大数量的纤维，例如多于4个，纤维松散地引入基本上平行的状态以填充套筒，并通过加热套筒而熔合在一起。还有一种塑料耦合器，其中在熔融区域中完全不存在包层（32），并且该区域中的芯（34）作为施加相互之间的核心模式耦合关系而变形并融合在一起 - 在熔化条件下的纤维压力，优选热熔条件。优选地，包覆层（32）通过溶剂去除，并且注意确保芯（34）的暴露部分具有有效的包层，例如，通过套筒（18），填充杆（50）和空气空间的作用。公开了与易于制造和改进光纤耦合器的性能相关的其它重要特征。

126. 发明申请

WO1987003701A1 CONCATENATED COUPLER 审中-公开
标题翻译：定型耦合器
公开(公告)号：WO1987003701A1
公开(公告)日：1987-06-18
申请号：PCT/GB1986000740
申请日：1986-12-04
申请人： THE GENERAL ELECTRIC COMPANY, P.L.C. , GEORGIOU, George, Antony , BOUCOUVALAS, Anthony, Christos
发明人： THE GENERAL ELECTRIC COMPANY, P.L.C.
IPC分类号： G02B06/26
CPC分类号： G02B6/03644 , G02B6/03611 , G02B6/2552 , G02B6/2835 , G02B6/29332
摘要： A filter with a tailored output characteristic for example useable as a comb filter is fabricated by producing two or more biconical tapered portions in an optical fibre. The manufacture is controlled so that the resulting concatenated couplers have specified pass-band characteristics.

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