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1. 发明申请

WO2005091029A2 OPTICAL COUPLER DEVICES, METHODS OF THEIR PRODUCTION AND USE 审中-公开
标题翻译：光耦合器件及其生产和使用方法
公开(公告)号：WO2005091029A2
公开(公告)日：2005-09-29
申请号：PCT/DK2005/000192
申请日：2005-03-21
申请人： CRYSTAL FIBRE A/S , NIELSEN, Martin Dybendal , SKOVGAARD, Peter, M.W. , BROENG, Jes , VIENNE, Guillaume
发明人： NIELSEN, Martin Dybendal , SKOVGAARD, Peter, M.W. , BROENG, Jes , VIENNE, Guillaume
IPC分类号： G02B6/16
CPC分类号： G02B6/262 , G02B6/02004 , G02B6/02333 , G02B6/02338 , G02B6/02357 , G02B6/02366 , G02B6/02376 , G02B6/03627 , G02B6/03644 , G02B6/03688 , G02B6/2835 , H01S3/06708 , H01S3/06729 , H01S3/06741 , H01S3/06745 , H01S3/094007 , H01S3/094019
摘要： The present invention relates in general to coupling of light from one or more input waveguides to an output waveguide or output section of a waveguide having other physical dimensions and/or optical properties than the input waveguide or waveguides. The invention relates to an optical component in the form of a photonic crystal fibre for coupling light from one component/system with a given numerical aperture to another component/system with another numerical aperture. The invention further relates to methods of producing the optical component, and articles comprising the optical component, and to the use of the optical component. The invention further relates to an optical component comprising a bundle of input fibres that are tapered and fused together to form an input coupler e.g. for coupling light from several light sources into a single waveguide. The invention still further relates to the control of the spatial extension of a guided mode (e.g. a mode-field diameter) of an optical beam in an optical fibre. The invention relates to a tapered longitudinally extending optical waveguide having a relatively larger crosssection that over a certain longitudinal distance is tapered down to a relatively smaller cross section wherein the spatial extent of the guided mode is substantially constant or expanding from the relatively larger to the relatively smaller waveguide cross section. The invention may e.g. be useful in applications such as fibre lasers or amplifiers, where light must be coupled efficiently from pump sources to a double clad fibre.
摘要翻译：本发明一般涉及将一个或多个输入波导的光耦合到具有比输入波导或波导的其它物理尺寸和/或光学性质的波导的输出波导或输出部分。本发明涉及一种光子晶体光纤形式的光学部件，用于将具有给定数值孔径的一个部件/系统的光耦合到具有另一个数值孔径的另一部件/系统。本发明还涉及制造光学部件的方法，以及包括光学部件的物品以及光学部件的使用。本发明还涉及一种包括一束输入光纤的光学部件，该束输入光纤被锥形并熔合在一起以形成输入耦合器。用于将来自多个光源的光耦合到单个波导中。本发明还涉及对光纤中的光束的导模（例如模场直径）的空间延伸的控制。本发明涉及一种锥形纵向延伸的光波导，其具有相对较大的横截面，在一定的纵向距离上，锥形向下延伸至相对较小的横截面，其中导向的空间范围基本上是恒定的或从相对较大的扩展到相对较大的横截面较小的波导截面。本发明可以例如在诸如光纤激光器或放大器的应用中是有用的，其中光必须从泵浦源有效耦合到双包层光纤。

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