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1. 发明申请

WO2003019257A1 OPTICAL FIBRE WITH HIGH NUMERICAL APERTURE, METHOD OF ITS PRODUCTION, AND USE THEREOF 审中-公开
标题翻译：具有高数值孔径的光纤，其生产方法及其用途
公开(公告)号：WO2003019257A1
公开(公告)日：2003-03-06
申请号：PCT/DK2002/000568
申请日：2002-08-30
申请人： CRYSTAL FIBRE A/S , BROENG, Jes , BJARKLEV, Anders , LIBORI, Stig, Eigil, Barkou , FOLKENBERG, Jacob, Riis , VIENNE, Guillaume
发明人： BROENG, Jes , BJARKLEV, Anders , LIBORI, Stig, Eigil, Barkou , FOLKENBERG, Jacob, Riis , VIENNE, Guillaume
IPC分类号： G02B6/22
CPC分类号： G02B6/024 , G02B6/02328 , G02B6/02333 , G02B6/02338 , G02B6/02347 , G02B6/02352 , G02B6/02357 , G02B6/02361 , G02B6/02366 , G02B6/02371 , G02B6/02385
摘要： An article comprising an optical fibre, the fibre comprising at least one core surrounded by a first outer cladding region, the first outer cladding region being surrounded by a second outer cladding region, the first outer cladding region in the cross-section comprising a number of first outer cladding features having a lower refractive index than any material surrounding the first outer cladding features, wherein for a plurality of said first outer cladding features, the minimum distance between two nearest neighbouring first outer cladding features is smaller than 1.0 μm or smaller than an optical wavelength of light guided through the fibre when in use; a method of its production, and use thereof.
摘要翻译：一种包括光纤的物品，所述纤维包括被第一外包层区包围的至少一个核心，所述第一外包层区域被第二外包层区域包围，所述横截面中的所述第一外包层区域包括多个第一外包层特征具有比围绕第一外包层特征的任何材料低的折射率，其中对于多个所述第一外包层特征，两个最近邻近的第一外包层特征之间的最小距离小于1.0μm或小于使用时通过光纤引导的光的光波长; 其生产方法及其用途。

2. 发明申请

WO2002101429A3 PHOTONIC BANDGAP FIBRE, AND USE THEREOF 审中-公开
公开(公告)号：WO2002101429A3
公开(公告)日：2002-12-19
申请号：PCT/DK2002/000390
申请日：2002-06-07
申请人： CRYSTAL FIBRE A/S , BROENG, Jes , LIBORI, Stig, Eigil, Barkou , BJARKLEV, Anders
发明人： BROENG, Jes , LIBORI, Stig, Eigil, Barkou , BJARKLEV, Anders
IPC分类号： G02B6/16
摘要： An object of the present invention is to provide new designs of microstructured optical fibres that may be fabricated without use of voids, such as fibres being realized using silica and silica doping techniques. The invention relates to a microstructured optical fibre that guides light in a core region (52), where the fibre has a cladding region that comprises a background material (51) and a number of cladding features or elements (50) that are elongated in the longitudinal direction of the fibre and have a higher refractive index than the cladding background material. The core region has a lower effective refractive index than the cladding, and the fibre may guide light in the core by photonic bandgap effects. The present invention provides designs of photonic bandgap fibres that may operate without the use of voids in the cladding, thereby simplifying fabrication of photonic bandgap fibres compared to prior art. The invention further provides photonic bandgap fibers with tuneable waveguiding properties, such as tuneable polarization. The invention further relates to a number of specific fibre designs that provide improvements with respect to dispersion characteristics, mode field diameters, propagation losses, polarization mode dispersion and other issues of relevance to optical communication systems.

3. 发明申请

WO2002084350A1 DUAL CORE PHOTONIC CRYSTAL FIBERS (PCF) WITH SPECIAL DISPERSION PROPERTIES 审中-公开
标题翻译：具有特殊分散性的双核光子晶体纤维（PCF）
公开(公告)号：WO2002084350A1
公开(公告)日：2002-10-24
申请号：PCT/DK2002/000245
申请日：2002-04-11
申请人： CRYSTAL FIBRE A/S , LIBORI, Stig, Eigil, Barkou , BROENG, Jes , BJARKLEV, Anders , MORTENSEN, Niels, Asger , JENSEN, Jacob, Riis
发明人： LIBORI, Stig, Eigil, Barkou , BROENG, Jes , BJARKLEV, Anders , MORTENSEN, Niels, Asger , JENSEN, Jacob, Riis
IPC分类号： G02B6/16
CPC分类号： G02B6/03644 , G02B6/02042 , G02B6/02261 , G02B6/0228 , G02B6/02333 , G02B6/02338 , G02B6/02347 , G02B6/02357 , G02B6/02361 , G02B6/02366 , G02B6/02371 , G02B6/0238 , G02B6/03627 , G02B6/03688 , G02B6/29377
摘要： An optical fibre for transmitting light, said optical fibre having an axial direction and a cross section perpendicular to said axial direction, said optical fibre comprising: (1) a first core region comprising a first core material having a refractive index N co,1 ; (2) a microstructured first cladding region surrounding the first core region, said first cladding region comprising a first cladding material and a plurality of spaced apart first cladding features or elements that are elongated in the fibre axial direction and disposed in the first cladding material, said first cladding material having a refractive index N cl,l and each said first cladding feature or element having a refractive index being lower than N cl,1 , whereby a resultant geometrical index N¿ge,cl, 1? of the first cladding region is lowered compared to N cl,1 ; (3) a second core region surrounding said first cladding region, said second core region comprising a second core material having a refractive index N co,2 , and (4) a second cladding region surrounding the second core region, said second cladding region comprising a second cladding material having a refractive index N cl,2 , wherein the first core material, the first cladding material and the first cladding features, the second core material, and the second cladding material are selected and arranged so that N co,1 > N ge,cl,1 , N co,2 > N ge,cl,l , and N co,2 > N cl,2 .
摘要翻译： 1.一种用于透射光的光纤，所述光纤具有轴向和垂直于所述轴向的横截面，所述光纤包括：（1）第一芯区，包括具有折射率Nco的第一芯材料; （2）围绕第一芯区域的微结构化第一包层区域，所述第一包层区域包括第一包层材料和多个间隔开的第一包层特征或在纤维轴向方向上延伸并设置在第一包层材料中的元件，所述第一包层材料具有折射率Ncl，l，并且每个所述第一包层特征或元件具有低于Ncl，1的折射率，由此与Ncl相比，第一包层区域的合成几何指数Nge，cl，1降低，1; （3）围绕所述第一包层区域的第二纤芯区域，所述第二纤芯区域包括具有折射率Nco的第二纤芯材料，以及（4）围绕所述第二纤芯区域的第二包覆区域，所述第二包覆区域包括具有折射率Ncl，2的第二包层材料，其中所述第一芯材料，所述第一包层材料和所述第一包层材料，所述第二芯材料和所述第二包层材料被选择和布置，使得Nco1> Nge，cl ，1，Nco，2> Nge，cl，l和Nco，2> Ncl，2。

4. 发明申请

WO2002101429A2 NOVEL PHOTONIC BANDGAP FIBRE, AND USE THEREOF 审中-公开
标题翻译：新型光电胶带纤维及其用途
公开(公告)号：WO2002101429A2
公开(公告)日：2002-12-19
申请号：PCT/DK2002/000390
申请日：2002-06-07
申请人： CRYSTAL FIBRE A/S , BROENG, Jes , LIBORI, Stig, Eigil, Barkou , BJARKLEV, Anders
发明人： BROENG, Jes , LIBORI, Stig, Eigil, Barkou , BJARKLEV, Anders
IPC分类号： G02B6/00
CPC分类号： C03B37/0122 , C03B37/01217 , C03B2201/31 , C03B2203/42 , G02B6/02323 , G02B6/02338 , G02B6/02347 , G02B6/0238 , G02B6/0239 , G02B6/105
摘要： An object of the present invention is to provide new designs of microstructured optical fibres that may be fabricated without use of voids, such as fibres being realized using silica and silica doping techniques. The invention relates to a mircrostructured optical fibre that guides light in a core region (52), where the fibre has a cladding region that comprises a background material (51) and a number of cladding features or elements (50) that are elongated in the longitudinal direction of the fibre and have a higher refractive index than the cladding background material. The core region has a lower effective refractive index than the cladding, and the fibre may guide light in the core by photonic bandgap effects. The present invention provides designs of photonic bandgap fibres that may operate without the use of voids in the cladding, thereby simplifiying fabrication of photonic bandgap fibres compared to prior art. The invention further provides photonic bandgap fibers with tuneable waveguiding properties, such as tuneable polarization. The invention further relates to a number of specific fibre designs that provide improvements with respect to dispersion characteristics, mode field diameters, propagation losses, polarizaton mode dispersion and other issues of relevance to optical communication systems.
摘要翻译：本发明的目的是提供可以在不使用空隙的情况下制造的微结构光纤的新设计，例如使用二氧化硅和二氧化硅掺杂技术实现的纤维。本发明涉及一种引导光在芯区域（52）中的光的微小结构光纤，其中光纤具有包括背景材料（51）的包层区域和在该区域中细长的多个包层特征或元件（50）并且具有比包层背景材料更高的折射率。核心区域具有比包层更低的有效折射率，并且光纤可以通过光子带隙效应来引导芯中的光。本发明提供可以在包层中不使用空隙的情况下操作的光子带隙光纤的设计，从而与现有技术相比，简化了光子带隙光纤的制造。本发明还提供具有可调波导特性的光子带隙光纤，例如可调偏振。本发明还涉及提供关于色散特性，模场直径，传播损耗，极化模式色散和与光通信系统相关的其它问题的改进的许多特定光纤设计。

5. 发明申请

WO2002088801A3 HIGHER-ORDER-MODE DISPERSION COMPENSATING PHOTONIC CRYSTAL FIBRES 审中-公开
公开(公告)号：WO2002088801A3
公开(公告)日：2002-11-07
申请号：PCT/DK2002/000164
申请日：2002-03-12
申请人： CRYSTAL FIBRE A/S , BROENG, Jes , BJARKLEV, Anders , LIBORI, Stig, Eigil, Barkou
发明人： BROENG, Jes , BJARKLEV, Anders , LIBORI, Stig, Eigil, Barkou
IPC分类号： G02B6/16
摘要： The present invention relates to a novel group of cladding and core designs, especially for use in optical fibres, which provides enhanced dispersion compensating properties through waveguiding of higher-order modes. In a first aspect, the present invention relates to an optical fibre comprising: A central region (41) having a centre radius r centre, max and an effective refractive index n centre.eff • A core region (43), having a core radius r core-max ,a maximum refractive index n core,max , and an effective refractive index ncore,eff • A cladding region (45, 46) having a cladding radius rciadding,max, a maximum refractive index n clad,max , an effective refractive index nciad,effand/or a resultant geometrical index n g,clad In preferred embodiments, the core region and or the cladding region comprise a photonic crystal structure.

6. 发明申请

WO2002088801A2 HIGHER-ORDER-MODE DISPERSION COMPENSATING PHOTONIC CRYSTAL FIBRES 审中-公开
标题翻译：高阶模式分散补偿光子晶体纤维
公开(公告)号：WO2002088801A2
公开(公告)日：2002-11-07
申请号：PCT/DK2002/000164
申请日：2002-03-12
申请人： CRYSTAL FIBRE A/S , BROENG, Jes , BJARKLEV, Anders , LIBORI, Stig, Eigil, Barkou
发明人： BROENG, Jes , BJARKLEV, Anders , LIBORI, Stig, Eigil, Barkou
IPC分类号： G02B6/16
CPC分类号： G02B6/02328 , C03B37/01217 , C03B37/0122 , C03B2203/30 , C03B2203/36 , C03B2203/42 , G02B6/02119 , G02B6/02261 , G02B6/02338 , G02B6/02347 , G02B6/02357 , G02B6/02361 , G02B6/02366 , G02B6/02371 , G02B6/02385 , G02B6/03611 , G02B6/03627 , G02B6/14 , G02B6/29377 , Y02P40/57
摘要： The present invention relates to a novel group of cladding and core designs, especially for use in optical fibres, which provides enhanced dispersion properties through waveguiding of higher-order modes. In a first aspect, the present invention relates to an optical fibre with a waveguide structure for supporting the transmission of light at a predetermined or operating wavelength λ 0 , said optical fibre having a longitudinal direction and a cross-section perpendicular to said longitudinal direction, said optical fibre comprising: a central region (41) having a centre axis in said longitudinal direction, said central region extending along and including said centre axis, said central region having an outer periphery with a maximum distance to the centre axis r centre,max , a minimum refractive index n centre,min , an effective refractive index n centre,eff and/or a resultant geometrical index n g,centre , a core region (43) extending along said longitudinal direction and surrounding said central region (41), said core region having an inner periphery that coincides with the outer periphery of the central region, an outer periphery with a maximum distance to the centre axis r core,max , a maximum refractive index n core,max , an effective refractive index n core,eff and/or a resultant geometrical index n g,core , a cladding region (45, 46) extending along said longitudinal direction, said cladding region surrounding and neighbouring said core region (43), said cladding region having an inner periphery that coincides with the outer periphery of the core region, an outer periphery with a maximum distance to a centre axis r cladding,max , a maximum refractive index n clad,max , an effective refractive index n clad,eff and/or a resultant geometrical index n g,clad . Here, it is preferred that n centre,eff is equal to or lower than n clad,eff and n clad,eff is lower than n core,eff at the wavelength λ 0 , and/or it is preferred that n g,centre is equal to or lower than n g,clad and n g,clad is lower than n g,core at the wavelength λ 0 . In preferred embodiments, the core region and/or the cladding region comprise (micro-)structural features. The invention further relates to a dispersion compensating module comprising and a preform for producing said optical fibres. The invention may e.g. find applications in high capacity, high transmission rate optical communications systems, e.g. WDM-systems.
摘要翻译：本发明涉及一种新型的包层和芯设计，特别是用于光纤中，其通过高阶模的波导提供增强的色散特性。在第一方面，本发明涉及一种具有波导结构的光纤，用于支撑预定或工作波长λ0的光的透射，所述光纤具有纵向方向和垂直于所述纵向方向的横截面，所述光纤光纤包括：中心区域（41），其具有在所述纵向方向上的中心轴线，所述中心区域沿着并包括所述中心轴线延伸，所述中心区域具有与所述中心轴线中心线最大距离的外周边，最小折射率ncentre，min，有效折射率ncentre，eff和/或所得几何指数ng，中心，沿着所述纵向方向延伸并围绕所述中心区域的芯区域（43），所述芯区域具有内圆周与中心区域的外周重合，外围与中心轴线最大距离为rcore，max，最大值 m，折射率ncore，最大值，有效折射率ncore，eff和/或所得几何指数ng，芯，沿着所述纵向方向延伸的包层区域（45,46），所述包层区域围绕并邻近所述芯区域），所述包层区域具有与芯区域的外周重合的内周边，具有与中心轴线最大距离的外围r包层，max，最大折射率nclad，max，有效折射率nclad，eff 和/或合成的几何指数ng，包层。这里，优选ncentre，eff等于或低于nclad，eff和nclad，eff低于ncore，eff在波长λ0，和/或优选ng，中心等于或低于ng ，包层和ng，包层低于ng，核心在波长λ0。在优选实施例中，芯区域和/或包层区域包括（微）结构特征。本发明还涉及一种色散补偿模块，其包括用于产生所述光纤的预成型件。本发明可以例如在高容量，高传输速率的光通信系统中的应用，例如， WDM系统。

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