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1. 发明申请

WO2004019092A1 PHOTONIC CRYSTAL FIBRE 审中-公开
标题翻译：光电晶体纤维
公开(公告)号：WO2004019092A1
公开(公告)日：2004-03-04
申请号：PCT/DK2003/000550
申请日：2003-08-19
申请人： CRYSTAL FIBRE A/S , MORTENSEN, Niels, Asger , BROENG, Jes , PETERSSON, Anders , FOLKENBERG, Jacob, Riis , VIENNE, Guillaume
发明人： MORTENSEN, Niels, Asger , BROENG, Jes , PETERSSON, Anders , FOLKENBERG, Jacob, Riis , VIENNE, Guillaume
IPC分类号： G02B6/16
CPC分类号： G02B6/02323 , G02B6/02019 , G02B6/02338 , G02B6/02347 , G02B6/02352 , G02B6/02357 , G02B6/02361 , G02B6/02371 , G02B6/02385
摘要： The present invention provides an improved large mode area, single mode or few mode optical fibre that is robust towards loss mechanisms such as bending losses and coupling losses. The optical fiber is aimed for use in transmission of light at at least one optical wavelength, λ. The optical fibre (10) has a longitudinal direction and a cross-section perpendicular thereto. The optical fiber comprises a core region (11) and a micro-structured cladding region. The cladding region surrounds the core region and it comprises micro-structured cladding features (12) that are arranged in a background cladding material (13). A plurality of the micro-structured cladding features has substantially similar size d - typical- ly the cladding features are circular in cross-section and d is equal to the diameter of the cladding features. At least a number of the cladding features are arranged proximal to said core region at a center-to-center cladding feature spacing, h, larger than 3 times λ. The core region is surrounded by more than six innermost cladding elements having a ratio d/h less than 0.45.
摘要翻译：本发明提供了一种改进的大模式区域，单模或多模光纤，其对诸如弯曲损耗和耦合损耗的损耗机制是鲁棒的。该光纤被用于在至少一个光学波长λ的透射中使用。光纤（10）具有与其垂直的纵向方向和横截面。光纤包括芯区（11）和微结构的包层区。包层区域围绕芯区域，并且其包括布置在背景包层材料（13）中的微结构的覆层特征（12）。多个微结构的包层特征具有基本相似的尺寸d-典型的是，包层特征在横截面上是圆形的，d等于包层特征的直径。至少多个包层特征被布置在所述纤芯区域的近中心包围特征间距h，大于λ的3倍。核心区域由比d / h小于0.45的多于六个最内层的包层元件包围。

2. 发明申请

WO2007107164A2 AN OPTICAL FIBER, A FIBER LASER, A FIBER AMPLIFIER AND ARTICLES COMPRISING SUCH ELEMENTS 审中-公开
标题翻译：光纤，光纤激光器，光纤放大器和包含这些元件的制品
公开(公告)号：WO2007107164A2
公开(公告)日：2007-09-27
申请号：PCT/DK2007/050034
申请日：2007-03-19
申请人： CRYSTAL FIBRE A/S , BROENG, Jes , PETERSSON, Anders , HANSEN, Kim Per , SKOVGAARD, Peter M. W. , NIELSEN, Martin Dybendal , NIKOLAJSEN, Thomas
发明人： BROENG, Jes , PETERSSON, Anders , HANSEN, Kim Per , SKOVGAARD, Peter M. W. , NIELSEN, Martin Dybendal , NIKOLAJSEN, Thomas
IPC分类号： H01S3/067 , G02B6/036
CPC分类号： H01S3/06754 , G02B6/021 , G02B6/02119 , G02B6/02366 , G02B6/03633 , G02B6/03694 , H01S3/0407 , H01S3/06729 , H01S3/06745 , H01S3/0675 , H01S3/09415
摘要： The invention relates to an optical fiber defining a longitudinal direction, the optical fiber comprising a core having a diameter larger than 10 µm, said core comprises at least two solid segments of different composition, at least one of the segments comprises a photo-sensitive material. The core may be segmented in its cross-sectional direction and/or in its longitudinal direction. The optical fiber may comprise a Bragg grating written in at least one of said solid core segments. In a preferred embodiment the optical fiber comprises a core with an effective refractive index ncore, and a cladding surrounding said core, wherein in a cross-section perpendicular to said longitudinal direction, said core being segmented, said core comprising a first core segment with an area a1 and a second core segment with an area a2; said first core segment comprises at least one photo-sensitive material, such as Ge and/or B and/or P doped silica; said second core segment surrounds said first core segment.
摘要翻译：本发明涉及限定纵向方向的光纤，所述光纤包括直径大于10μm的芯，所述芯包括至少两个不同组成的固体区段，至少两个不同组成的固体区段其中一个区段包含光敏材料。芯可以在其横截面方向上和/或在其纵向方向上分段。光纤可以包括写入至少一个所述实芯部分中的布拉格光栅。在优选实施例中，光纤包括具有有效折射率n core的芯和包围所述芯的包层，其中在垂直于所述纵向的横截面中，所述芯被分段，所述芯包括第一芯段和第二芯段，区域a1和具有区域a2的第二核心区段; 所述第一核心节段包括至少一种光敏材料，例如Ge和/或B和/或P掺杂的二氧化硅; 所述第二核心节段围绕所述第一核心节段。

3. 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。

4. 发明申请

WO2005041367A1 AN OPTICAL SYSTEM FOR PROVIDING SHORT LASER-PULSES 审中-公开
标题翻译：用于提供短激光脉冲的光学系统
公开(公告)号：WO2005041367A1
公开(公告)日：2005-05-06
申请号：PCT/EP2004/052655
申请日：2004-10-25
申请人： NKT RESEARCH & INNOVATION A/S , CRYSTAL FIBRE A/S , PEDERSEN, Claus Friis , SKOVGAARD, Peter M.W.
发明人： PEDERSEN, Claus Friis , SKOVGAARD, Peter M.W.
IPC分类号： H01S3/00
CPC分类号： H01S3/1115 , G02B6/02214 , G02B6/02261 , G02B6/02328 , G02B6/02333 , G02B6/02347 , G02B6/2552 , H01S3/0057 , H01S3/0064 , H01S3/06725 , H01S3/06729 , H01S3/06741 , H01S3/06745 , H01S3/06754 , H01S3/08009 , H01S3/08059 , H01S3/094076 , H01S3/09415 , H01S3/1063 , H01S3/1118 , H01S3/115 , H01S3/1611 , H01S3/1618 , H01S3/1695 , H01S3/2308
摘要： The present invention deals with optical systems for providing short laser pulses. An object of the invention is to provide an optical system providing compact and costeffective short laser-pulses using fibers with anomalous dispersion and high nonlinear thresholds. The object is achieved by a short pulse optical system for generating or processing short laser-pulses, said optical system comprises an optical fiber in the form of a hollow photonic crystal air-guiding fiber (PBG), where light propagates in a hollow core surrounded by a Silica cladding and where the refractive index of the core is lower than the refractive index of the cladding. The invention may be useful in applications such as laser-based micromachining, thin-film formation, laser cleaning, in medicine and biology.
摘要翻译：本发明涉及用于提供短激光脉冲的光学系统。本发明的目的是提供一种光学系统，其使用具有异常色散和高非线性阈值的光纤提供紧凑且具有成本效益的短激光脉冲。该目的是通过用于产生或处理短激光脉冲的短脉冲光学系统实现的，所述光学系统包括中空光子晶体空气引导光纤（PBG）形式的光纤，其中光在中空的核心周围传播通过硅胶包层，并且其中芯的折射率低于包层的折射率。本发明可用于诸如基于激光的微机械加工，薄膜形成，激光清洗，医学和生物学等应用。

5. 发明申请

WO2004053550A1 IMPROVEMENTS RELATING TO PHOTONIC CRYSTAL FIBRES 审中-公开
标题翻译：关于光子晶体纤维的改进
公开(公告)号：WO2004053550A1
公开(公告)日：2004-06-24
申请号：PCT/DK2003/000843
申请日：2003-12-09
申请人： CRYSTAL FIBRE A/S , BROENG, Jes , PETERSSON, Anders
发明人： BROENG, Jes , PETERSSON, Anders
IPC分类号： G02B6/20
CPC分类号： G02B6/023 , G02B6/02333 , G02B6/02338 , G02B6/02347 , G02B6/02357 , G02B6/02366 , G02B6/02371
摘要： A multi-mode optical fibre for guiding light, the optical fibre having an axial direction and a cross section perpendicular to said axial direction, the optical fibre comprising (a) a core region (10, 70, 74) for propagating the light to be guided in the longitudinal direction of the optical fibre; said core region having a minimum dimension (ρ) equal to or larger than 30 µm; (b) an inner cladding region, said inner cladding region surrounding said core region and comprising three or more voids or holes separated by a minimum distance (b) in the range from 2m to 10m, and being arranged in an inner cladding background material with refractive index n 1 ; and (c) an outer cladding region with an outer cladding background material with refractive index n2, and a thickness (t), said thickness being equal to or larger than 10µm; said core region and said outer cladding region being connected by said inner cladding material; an optical fibre communication system or high power laser transmission system comprising such as fiber; a preform and method for its production. Further, an optical fiber for guiding light comprising a core region and a cladding region; said core region, and/or cladding region comprising ring-shaped regions or elements having refractive indices different from that of the background materials of said core region, and/or said cladding region.
摘要翻译：一种用于引导光的多模光纤，所述光纤具有轴向和与所述轴向方向垂直的横截面，所述光纤包括（a）用于传播光的芯区域（10,70,74）沿光纤的纵向引导; 所述芯区域具有等于或大于30μm的最小尺寸（rho）; （b）内包层区域，所述内包层区域围绕所述纤芯区域，并且包括三个或更多个在最小距离（b）之间分隔的距离为2μm至10μm的空隙或孔，并且布置在内包层背景材料中，折射率n1; 和（c）具有折射率n2的外包层背景材料的外包层区域，以及厚度（t），所述厚度等于或大于10μm; 所述芯区域和所述外包层区域由所述内包层材料连接; 光纤通信系统或包括诸如光纤的大功率激光传输系统; 预制件和其生产方法。此外，用于引导包括芯区域和包层区域的光的光纤; 和/或包含区域的包层区域，和/或包含具有与所述芯区域的背景材料的折射率不同的折射率的环形区域或/或所述包层区域的包层区域。

6. 发明申请

WO2003032039A1 HERMETICALLY SEALED OPTICAL FIBRE WITH VOIDS OR HOLES, METHOD OF ITS PRODUCTION, AND ITS USE 审中-公开
标题翻译：密封光密封的光纤或者孔，其生产方法及其使用
公开(公告)号：WO2003032039A1
公开(公告)日：2003-04-17
申请号：PCT/DK2002/000676
申请日：2002-10-09
申请人： CRYSTAL FIBRE A/S , SKOVGAARD, Peter, M., W. , FOLKENBERG, Jacob, Riis , VIENNE, Guillaume
发明人： SKOVGAARD, Peter, M., W. , FOLKENBERG, Jacob, Riis , VIENNE, Guillaume
IPC分类号： G02B6/16
CPC分类号： G02B6/02376 , G02B6/02357 , G02B6/02366 , G02B6/02385 , G02B6/262 , G02B6/32
摘要： An optical fibre having an axial direction and a cross section perpendicular to said axial direction, said optical fibre comprising: a first light guiding fibre portion (604) having a cladding region with a plurality of spaced apart cladding voids extending longitudinally in the fibre axial direction and a core region bounded by said cladding region, and a solid light transparent fibre portion (602) having a first end facing the first light guiding fibre portion and a second end forming an end face of the optical fibre, said solid light transparent fibre portion providing a hermetic sealing (601) of the cladding voids of the first light guiding fibre portion; a method of its production, and its use, such as an optical fibre connector and an article comprising a microstructured optical fibre with hermetically sealed end face.
摘要翻译：一种具有轴向和与所述轴向垂直的横截面的光纤，所述光纤包括：第一导光纤维部分（604），其具有包围区域，所述包层区域具有在纤维轴向方向上纵向延伸的多个间隔开的包层空隙和由所述包层区域限定的芯区域和具有面对第一导光纤维部分的第一端和形成光纤端面的第二端的固体光透明光纤部分（602），所述固体光透明光纤部分提供第一导光纤维部分的包层空隙的气密密封（601）; 其制造方法及其使用，例如光纤连接器和包含具有气密密封端面的微结构光纤的制品。

7. 发明申请

WO2007006317A3 OPTICAL COUPLER DEVICES, METHODS OF THEIR PRODUCTION AND USE 审中-公开
公开(公告)号：WO2007006317A3
公开(公告)日：2007-01-18
申请号：PCT/DK2006/050028
申请日：2006-06-28
申请人： CRYSTAL FIBRE A/S , NIKOLAJSEN, Thomas
发明人： NIKOLAJSEN, Thomas
IPC分类号： H01S3/094 , G02B6/28
摘要： It is an object of the invention to provide a fibre coupler for coupling two or more light sources into a multi-clad (e.g. double clad) optical fibre, which has practical advantages with respect to handling, loss and back reflection. The invention provides an optical component comprising a) a first fibre having a pump core with an NA1, and a first fibre end; b) a number of second fibres surrounding said pump core of said first fibre, at least one of said second fibres has a pump core with an NA2 that is smaller than NA1, said number of second fibres each having a second fibre end; and c) a reflector element comprising an end-facet with a predetermined profile for reflecting light from at least one of said second fibre ends into the pump core of said first fibre. The invention further relates to articles comprising the optical component (e.g. a laser or amplifier), to methods of its production and use. The invention further relates to a rod-type optical fibre with optimized stiffness to volume ratio. The invention may e.g. be useful in applications such as fibre lasers or amplifiers, specifically optical fibre amplifiers where pump light and signal light are propagating in different directions within a double-clad optical fibre.

8. 发明申请

WO2004111695A1 ARTICLES COMPRISING MICRO-STRUCTURED, HOLLOW-CORE FIBRES, AND METHODS OF THEIR SPLICING, CONNECTORIZATION AND USE 审中-公开
标题翻译：包含微结构，中空纤维的文章及其分离，连接和使用的方法
公开(公告)号：WO2004111695A1
公开(公告)日：2004-12-23
申请号：PCT/DK2004/000439
申请日：2004-06-21
申请人： CRYSTAL FIBRE A/S , SKOVGAARD, Peter, M., W. , FOLKENBERG, Jacob, Riis , HANSEN, Theis, Peter
发明人： SKOVGAARD, Peter, M., W. , FOLKENBERG, Jacob, Riis , HANSEN, Theis, Peter
IPC分类号： G02B6/255
CPC分类号： H01S3/06708 , G02B6/02304 , G02B6/02328 , G02B6/032 , G02B6/2551 , G02B6/262 , G02B6/327 , H01S3/22
摘要： The present invention relates to articles comprising micro-structured, hollow-core fibres, and methods of their splicing and connectorization. It is an object of the invention to provide a scheme for optically coupling an article comprising a micro-structured, hollow-core optical fibre to other optical fibres or components with a relatively low return loss. The object is fulfilled by providing an article comprising a micro-structured, hollow-core optical fibre with an optical window made of an optical material of refractive index n ow the optical fibre having an even end face forming an angle θ with a plane perpendicular to a longitudinal direction of the optical fibre, the optical window being of length I ow in the longitudinal direction and having a first face parallel to and contacting the end face of the optical fibre, wherein the angle θ is different from 0°. The invention further relates to methods of optical coupling a hollow-core fibre to other micro-structured, hollow-core or non-micro-structured optical fibres by means of an optical connector or a splice and to a fibre laser or amplifier comprising an article according to the invention. The invention may be used in all applications of hollow-core optical fibres, where return loss in of importance, e.g. in optical communications systems.
摘要翻译：本发明涉及包含微结构的中空纤维的制品及其拼接和连接方法。本发明的目的是提供一种用于将包含微结构的中空芯光纤的制品光学耦合到具有相对较低回波损耗的其它光纤或部件的方案。该目的是通过提供一种包括微结构的中空纤维光纤的物品，其中具有由折射率的光学材料制成的光学窗口，现在光纤具有平面端面，其平面垂直于垂直于所述光学窗口的长度方向为纵向，并且具有与所述光纤的端面平行并接触的第一面，其中所述角度θ不同于0°。本发明还涉及通过光学连接器或接头将中空纤维光纤耦合到其它微结构的中空芯或非微结构光纤的方法，以及包括物品的光纤激光器或放大器根据本发明。本发明可用于中空纤维光纤的所有应用，其中重要的回波损耗，例如，在光通信系统中。

9. 发明申请

WO2003100488A1 OPTICAL WAVEGUIDE, METHOD OF ITS PRODUCTION, AND ITS USE 审中-公开
标题翻译：光波导，其生产方法及其使用
公开(公告)号：WO2003100488A1
公开(公告)日：2003-12-04
申请号：PCT/DK2003/000345
申请日：2003-05-23
申请人： CRYSTAL FIBRE A/S , BROENG, Jes , SKOVGAARD, Peter, M., W. , KNUDSEN, Erik , JENSEN, Jesper, Bevensee , NIELSEN, Martin, Dybendal
发明人： BROENG, Jes , SKOVGAARD, Peter, M., W. , KNUDSEN, Erik , JENSEN, Jesper, Bevensee , NIELSEN, Martin, Dybendal
IPC分类号： G02B6/16
CPC分类号： C03B37/0122 , C03B37/01205 , C03B2201/12 , C03B2201/31 , C03B2201/34 , C03B2201/36 , C03B2203/10 , C03B2203/14 , C03B2203/42 , C03B2205/10 , G02B6/02338 , G02B6/02352 , G02B6/02357 , G02B6/02366 , G02B6/02371 , G02B6/0239
摘要： An optical waveguide with a longitudinal direction and a cross-section perpendicular thereto for propagating optical radiation at a free-space wavelength λ, the optical waveguide comprising: a core region (103), a cladding region (100,101,102) surrounding the core region, and a substantially one-dimensional (1D) periodic structure of structural elements with a period Λ; wherein said structural elements comprises cross-sectionally extended continuous elements; use of such an optical waveguide in optical amplifier, a tunable optical amplifier, an optical laser, and a tunable optical laser; a preform for its production; and a method of its production.
摘要翻译：一种具有垂直于其的光波导，用于以自由空间波长λ传播光辐射的光波导，所述光波导包括：芯区域（103），围绕所述芯区域的包层区域（100,101,102），以及具有周期λ的结构元件的基本一维（1D）周期性结构; 其中所述结构元件包括横截面延伸的连续元件; 在光放大器中使用这种光波导，可调谐光放大器，光学激光器和可调谐光学激光器; 用于生产的预成型件; 及其生产方法。

10. 发明申请

WO2003078338A2 PREFORM, METHOD OF ITS PRODUCTION, AND USE THEREOF IN PRODUCTION OF MICROSTRUCTURED OPTICAL FIBRES 审中-公开
标题翻译：优先权，其生产方法及其在生产微结构光纤中的应用
公开(公告)号：WO2003078338A2
公开(公告)日：2003-09-25
申请号：PCT/DK2003/000182
申请日：2003-03-18
申请人： CRYSTAL FIBRE A/S , JAKOBSEN, Christian , VIENNE, Guillaume , HANSEN, Theis, Peter
发明人： JAKOBSEN, Christian , VIENNE, Guillaume , HANSEN, Theis, Peter
IPC分类号： C03B37/00
CPC分类号： C03B37/016 , C03B37/01231 , C03B37/014 , C03B37/01446 , C03B37/01486 , C03B37/01493 , C03B37/018 , C03B37/01884 , C03B37/01892 , C03B2203/10 , C03B2203/14 , C03B2203/16 , C03B2203/42 , G02B6/02295
摘要： Method of making a preform for microstructured optical fibres, in an aspect the method being an improved sol-gel process, wherein elongated elements, such as rods and/or tubes, extend through a tubular vessel, and being maintained in a predetermined spatial arrangement with respect to the vessel, the elongated elements being part of a final gel body resulting from the sol-gel process; a preform or part thereof for making microstructured optical fibres, the preform comprising concentric tubes and a plurality of tubes and/or rods placed between the concentric tubes; and microstructured optical fibres produced using such preforms.
摘要翻译：制备用于微结构光纤的预成型件的方法，在一个方面，该方法是改进的溶胶 - 凝胶法，其中细长元件（例如棒和/或管）延伸穿过管状容器，并且保持在预定的空间布置中相对于容器，细长元件是由溶胶 - 凝胶过程产生的最终凝胶体的一部分; 用于制造微结构化光纤的预成型件或其一部分，所述预成型件包括同心管和放置在同心管之间的多个管和/或杆; 和使用这种预制件生产的微结构光纤。

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