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1. 发明申请

US20050276556A1 Optical waveguide 有权
标题翻译：光波导
公开(公告)号：US20050276556A1
公开(公告)日：2005-12-15
申请号：US11155648
申请日：2005-06-20
申请人： David Williams , Timothy Birks , Philip Russell , Peter Roberts , Hendrik Sabert , Alexander Onischenko
发明人： David Williams , Timothy Birks , Philip Russell , Peter Roberts , Hendrik Sabert , Alexander Onischenko
IPC分类号： C03B37/012 , C03B37/027 , G02B6/02
CPC分类号： C03B37/02781 , C03B37/0122 , C03B37/0124 , C03B37/0126 , C03B2203/14 , C03B2203/42 , C03B2205/08 , G02B6/02328 , G02B6/02338 , G02B6/02347 , G02B6/02371 , G02B6/02385 , Y02P40/57
摘要： An elongate waveguide for guiding light includes a core having an elongate region of relatively low refractive index; a microstructured region around the core having elongate regions of relatively low refractive index interspersed with elongate regions of relatively high refractive index; and a boundary at the interface between the core and the microstructured region, the boundary including in the transverse cross-section, a region of relatively high refractive index, which is connected to the microstructured region at a plurality of nodes, at least one relatively enlarged region around the boundary (and excluding a boundary having twelve nodes and six enlarged regions substantially at a mid-point between six pairs of relatively more-widely-spaced apart neighboring nodes).
摘要翻译：用于引导光的细长波导包括具有相对较低折射率的细长区域的芯体; 芯周围的微结构化区域具有相当低折射率的细长区域，散布有相对较高折射率的细长区域; 以及在所述芯和所述微结构化区域之间的界面处的边界，所述边界包括在横截面中，相对高折射率的区域，其连接到多个节点处的微结构区域，至少一个相对放大（并且不包括具有十二个节点的边界和基本上在六对相对更广泛间隔开的相邻节点之间的中点处的六个扩大区域）。

2. 发明申请

US20060177187A1 Birefringent photonic bandgap optical waveguide 有权
标题翻译：双折射光子带隙光波导
公开(公告)号：US20060177187A1
公开(公告)日：2006-08-10
申请号：US10561594
申请日：2004-06-21
申请人： David Williams , Timothy Birks , Hendrik Sabert
发明人： David Williams , Timothy Birks , Hendrik Sabert
IPC分类号： G02B6/02
CPC分类号： G02B6/024 , B82Y20/00 , C03B37/01205 , C03B37/01217 , C03B37/0122 , C03B2203/12 , C03B2203/14 , C03B2203/16 , C03B2203/22 , C03B2203/42 , G02B6/02338 , G02B6/02347 , G02B6/02357 , G02B6/02361 , G02B6/105
摘要： A birefringent elongate waveguide for guiding light, comprises: a core region (110), comprising an elongate region of relatively low refractive index; and a cladding region (100), comprising elongate regions (105) of relatively low refractive index interspersed with elongate regions (117,120) of relatively high refractive index. In a transverse cross-section of the waveguide, a (5) relatively high refractive index boundary region (115) is provided that surrounds the core region and has either (1) at most two-fold rotational symmetry or (2) a rotational symmetry that reduces the rotational symmetry of the waveguide to at most two-fold rotational symmetry. The symmetry of the boundary region (115) results at least in part from azimuthal variations therein, which are substantially uncharacteristic of the cladding region (100).
摘要翻译：用于引导光的双折射细长波导包括：芯区（110），包括相对低折射率的细长区域; 和包层区域（100），包括相对较低折射率的细长区域（105），散射区域具有相对较高折射率的细长区域（117,120）。在波导的横截面中，提供了（5）相对高折射率的边界区域（115），其围绕芯区域并且具有（1）至多两个旋转对称或（2）旋转对称这将波导的旋转对称性降低到至多两个旋转对称。边界区域（115）的对称性至少部分地由其中的方位角变化导致，这是包层区域（100）的基本上非特性。

3. 发明申请

US20050238301A1 Method of drawing microstructured glass optical fibres from a preform 审中-公开
标题翻译：从预成型件拉制微结构玻璃光纤的方法
公开(公告)号：US20050238301A1
公开(公告)日：2005-10-27
申请号：US10506687
申请日：2003-03-20
申请人： Philip Russell , Brian Mangan , Jonathan Knight , Ian Kilbride , Timothy Birks
发明人： Philip Russell , Brian Mangan , Jonathan Knight , Ian Kilbride , Timothy Birks
IPC分类号： C03B37/025 , C03B37/027 , G02B6/44
CPC分类号： C03B37/02781 , C03B2203/14 , C03B2203/42 , C03B2205/10 , Y10T428/2975
摘要： A method of manufacturing a microstructured fibre, comprises: providing a preform comprising a plurality of elongate holes; mating at least one, but not all, of the holes with a connector to connect the hole(s) to an external pressure-controller; drawing the preform into the fibre whilst controlling gas pressure in the hole(s) connected to the pressure-controller. The connector is also claimed.
摘要翻译：一种制造微结构纤维的方法，包括：提供包括多个细长孔的预制件; 使用连接器将至少一个但不是全部的孔配合以将孔连接到外部压力控制器; 将预型件拉入纤维中，同时控制连接到压力控制器的孔中的气体压力。还要求连接器。

4. 发明申请

US20060008218A1 Method of manufacturing an optical fibre, a preform and an optical fibre 审中-公开
标题翻译：制造光纤，预成型件和光纤的方法
公开(公告)号：US20060008218A1
公开(公告)日：2006-01-12
申请号：US10502251
申请日：2003-01-23
申请人： Jonathan Knight , Philip Russell , Timothy Birks
发明人： Jonathan Knight , Philip Russell , Timothy Birks
IPC分类号： G02B6/02
CPC分类号： G02B6/02314 , B82Y20/00 , C03B37/01205 , C03B37/0122 , C03B2201/04 , C03B2201/075 , C03B2203/42 , G02B6/02347 , G02B6/0238
摘要： A method of manufacturing an optical fibre, comprises: (i) forming a preform (10) for drawing into the fibre, the preform (10) comprising a bundle of elongate elements, (20,50) arranged to form a first region that becomes a cladding region of the fibre and a second region that becomes a core region of the fibre; (ii) drawing the preform (10) into the fibre. The bundle of elongate elements (20,50) comprises a plurality of elongate elements (20) of a lower purity dielectric material and at least one elongate element (50) of a higher purity dielectric material. The first region comprises a plurality of the lower purity elements (20) and the second region comprises the higher purity element (50).
摘要翻译：一种制造光纤的方法包括：（i）形成用于拉入纤维的预成型件（10），所述预成型件（10）包括一束细长元件（20,50），所述细长元件布置成形成第一区域，所述第一区域成为纤维的包层区域和成为纤维的核心区域的第二区域; （ii）将预成型件（10）拉伸到纤维中。细长元件束（20,50）包括多个较低纯度介电材料的细长元件（20）和至少一个较高纯度介电材料的细长元件（50）。第一区域包括多个较低纯度元件（20），第二区域包括较高纯度元件（50）。

5. 发明申请

US20050249470A1 Optical fibres 有权
标题翻译：光纤
公开(公告)号：US20050249470A1
公开(公告)日：2005-11-10
申请号：US10936825
申请日：2004-09-09
申请人： David Bird , John Pottage , Timothy Birks , Matthew Banham
发明人： David Bird , John Pottage , Timothy Birks , Matthew Banham
IPC分类号： G02B6/02 , G02B6/20
CPC分类号： G02B6/02328 , G02B6/02338 , G02B6/02347 , G02B6/02357 , G02B6/02371
摘要： The present invention relates to photonic crystal fibers, in particular to photonic crystal fibers that guide light by virtue of a photonic band gap. It is an object of the present invention to provide such fibers that are formed from materials having higher refractive indices than silica. The object is achieved by an elongate waveguide comprising a core with a relatively low refractive index and a photonic band gap structure that can substantially confine light to the core, the structure comprising elongate regions of relatively low refractive index interspersed with elongate regions of relatively high refractive index wherein the band gap resides above the fifth photonic band of the band gap structure. Alternatively the photonic band gap may have a V0-value in the range 130≦V02≦160. Alternatively the waveguide has a lattice pitch Λ and the elongate regions have a transverse dimension d, wherein the photonic band gap has a normalized centre frequency k0Λ in the range 5≦k0Λ≦6, when d/Λ=0.8 and the refractive index contrast is 2.4, or a normalized centre frequency k0Λ of the same photonic band gap that is scaled with either or both of d/Λ and the refractive index contrast between the relatively high index and the relatively low refractive index. The invention further relates to a method of operating the waveguides and to their use. The present invention may facilitate long distance transmission at higher than usual wavelengths.
摘要翻译：本发明涉及光子晶体光纤，特别涉及通过光子带隙引导光的光子晶体光纤。本发明的目的是提供由具有比二氧化硅更高的折射率的材料形成的这种纤维。该目的通过一种细长波导来实现，该波导包括具有相对较低折射率的芯和能够将光基本上限制在芯上的光子带隙结构，该结构包括相对较低折射率的细长区域，其间散布有相对高折射率的细长区域指数，其中带隙位于带隙结构的第五个光子带之上。或者，光子带隙可以具有范围130 <= 0,0 <= 160中的V 0-VAL值。或者，波导具有晶格间距λ，并且细长区域具有横向尺寸d，其中光子带隙具有在5 <= K <0> 0的范围内的归一化中心频率k < /dλλ= 0.8，折射率对比度为2.4，或相同光子带隙的归一化中心频率kλλλ，其与两者或两者中的任一个或两者缩放的d /λ和相对高的折射率与较低折射率之间的折射率对比度。本发明还涉及一种操作波导及其用途的方法。本发明可以促进在高于通常波长的长距离传输。

6. 发明申请

US20050232560A1 METHOD AND APPARATUS RELATING TO OPTICAL FIBRE WAVEGUIDES 审中-公开
标题翻译：与光纤波形相关的方法和装置
公开(公告)号：US20050232560A1
公开(公告)日：2005-10-20
申请号：US10498414
申请日：2002-12-05
申请人： Jonathan Cave Knight , Philip Russell , Timothy Birks , Brian Mangan
发明人： Jonathan Cave Knight , Philip Russell , Timothy Birks , Brian Mangan
IPC分类号： C03B37/012 , C03B37/027 , G02B6/02 , G02B6/20
CPC分类号： G02B6/02304 , C03B37/0122 , C03B37/01228 , C03B37/0124 , C03B37/02781 , C03B2203/14 , C03B2203/16 , C03B2203/42 , C03B2205/10 , G02B6/02328 , G02B6/02361 , G02B6/02371
摘要： An optical fibre comprises: (i) a plurality of elongate, tubular, higher-refractive-index regions (20,50) of dielectric material, the regions being concentric about a longitudinal axis; (ii) a plurality of elongate, tubular lower-refractive-index regions, arranged between the higher-index regions (20,50), and comprising bridging regions (30), of a solid dielectric material, and a plurality of elongate holes (40); and (iii) a core region (10). The higher-index regions (20,50) and the lower-index regions (40) together define a cladding structure arranged to guide light in the core region (10). The elongate holes (40) are arcuate in cross-section.
摘要翻译：一种光纤包括：（i）介电材料的多个细长管状较高折射率区域（20,50），所述区域围绕纵向轴线同心; （ii）多个细长的管状低折射率区域，布置在较高折射率区域（20,50）之间，并且包括固体电介质材料的桥接区域（30）和多个细长孔（ 40）; 和（iii）核心区域（10）。较高折射率区域（20,50）和较低折射率区域（40）一起限定了布置成引导芯区域（10）中的光的包层结构。细长孔（40）的横截面为弧形。

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