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公开(公告)号:US4401363A
公开(公告)日:1983-08-30
申请号:US192035
申请日:1980-09-29
申请人: Harold E. M. Barlow
发明人: Harold E. M. Barlow
IPC分类号: H04B10/00 , G02B6/02 , H01P3/16 , H04B10/12 , H04B10/13 , H04B10/135 , H04B10/14 , G02B5/172 , G02B5/176
CPC分类号: H04B10/2581 , G02B6/02
摘要: Conventional optical waveguides are of very small diameter making handling and coupling difficult. Also the HE.sub.11 mode is used and this can give rise to contamination where inhomogeneities arise in the waveguide. The waveguide of the present invention has a tube of higher permittivity optical material, with a core of lower permittivity optical material and cladding again of lower permittivity material. The critical dimension is the thickness of the tube and the tube diameter can therefore be made very much larger than that of the conventional optical waveguide. Such a waveguide when properly excited will support the HE.sub.11 wave as a single mode or alternatively the TE.sub.01 mode as a pure wave. Methods of launching and propagating these modes are described.
摘要翻译: 常规光波导具有非常小的直径,使得处理和耦合困难。 此外,使用HE11模式,这可能导致在波导中出现不均匀性的污染。 本发明的波导具有较高介电常数光学材料的管,其具有较低介电常数光学材料的芯并且再次覆盖较低的介电常数材料。 临界尺寸是管的厚度,因此管直径可以比常规光波导的大得多。 当正确激励时,这样的波导将支持HE11波作为单一模式,或者将TE01模式作为纯波支持。 描述这些模式的发射和传播方法。
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公开(公告)号:US4384760A
公开(公告)日:1983-05-24
申请号:US216309
申请日:1980-12-15
申请人: Rodney C. Alferness
发明人: Rodney C. Alferness
CPC分类号: H04B10/25 , G02B6/105 , G02F1/0136 , G02F1/0353 , G02F2001/0142 , G02F2203/07
摘要: A generalized polarization transformer (10) is disclosed that is capable, under electrical control, of transforming the polarization of a signal between two arbitrary states. In its most general form, the transformer comprises a variable input phase shifter (11) for varying the relative phase between an incident pair of orthogonally polarized wave components; a variable mode converter (12) for varying the relative amplitudes of said orthogonally polarized wave components; and a variable output phase shifter (13) for varying the relative phase between the wave components derived from said mode converters. For some applications, the output phase shifter is not required. In an alternative configuration, the input phase shifter and the mode converter are combined in a common constructure.
摘要翻译: 公开了一种能够在电气控制下将两个任意状态之间的信号的偏振变换的广义偏振变压器(10)。 在其最一般的形式中,变压器包括用于改变入射对的正交偏振波分量之间的相对相位的可变输入移相器(11) 用于改变所述正交极化波分量的相对振幅的可变模式转换器(12); 以及用于改变从所述模式转换器导出的波分量之间的相对相位的可变输出移相器(13)。 对于某些应用,不需要输出移相器。 在替代配置中,输入移相器和模式转换器组合在共同的结构中。
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公开(公告)号:US4566753A
公开(公告)日:1986-01-28
申请号:US736976
申请日:1985-05-22
申请人: Lothar Mannschke
发明人: Lothar Mannschke
CPC分类号: G02B6/2848 , G02B6/2808
摘要: The ends of tapered optical waveguides are focused onto one another by means of a graded index rod lens. The tapered tips are connected to the end faces of the lens. The coupling conditions are improved by taking into account the cladding modes emerging from the tapered portions.
摘要翻译: 锥形光波导的端部通过渐变折射率棒透镜彼此聚焦。 锥形尖端连接到透镜的端面。 通过考虑从锥形部分出现的包层模式来改善耦合条件。
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公开(公告)号:US4550975A
公开(公告)日:1985-11-05
申请号:US373135
申请日:1982-04-29
CPC分类号: G02B6/2937 , G02B6/2938 , G02B6/29389
摘要: An optical device which diverts light from one transmission element (e.g. 21) to another (e.g., 22, 23 and 24) and a method of manufacture are disclosed. The device includes a pair of focusing elements (10 and 11) such as graded index of refraction lenses separated by a pair of at least partially reflecting elements (12 and 13). Optical transmission elements are placed adjacent to the surfaces (17 and 20) of the focusing elements opposite the reflecting elements. The reflecting elements are placed at an angle to each other and the transmission elements positioned to achieve efficient light coupling. The reflecting elements can then be fastened to each other by an appropriate adhesive (14).In specific embodiments, the device may function as a multiplexer/demultiplexer for light having three or more wavelengths, or as an asymmetric four-port coupler.
摘要翻译: 公开了一种将光从一个传输元件(例如21)转移到另一个(例如22,23和24)的光学装置及其制造方法。 该装置包括一对聚焦元件(10和11),例如由一对至少部分反射元件(12和13)分开的渐变折射率透镜。 光传输元件放置在与反射元件相对的聚焦元件的表面(17和20)附近。 反射元件彼此成角度放置,并且传输元件被定位成实现有效的光耦合。 然后可以通过合适的粘合剂(14)将反射元件彼此紧固。 在具体实施例中,该装置可以用作具有三个或更多波长的光的多路复用器/解复用器,或作为不对称的四端口耦合器。
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