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1. 发明申请

WO2010127676A1 Hollow-core optical fiber incorporating a metamaterial cladding 审中-公开
标题翻译：掺有超材料包层的中空芯光纤
公开(公告)号：WO2010127676A1
公开(公告)日：2010-11-11
申请号：PCT/DK2010/050099
申请日：2010-05-05
申请人： DANMARKS TEKNISKE UNIVERSITET - DTU , MORTENSEN, Niels Asger , YAN, Min
发明人： MORTENSEN, Niels Asger , YAN, Min
IPC分类号： G02B6/02 , G02B6/00
CPC分类号： G02B6/02342 , G02B6/02347 , G02B6/02361 , G02B6/02366 , G02B6/02371
摘要： An optical fiber (100, 200, 300) for guidance of electromagnetic radiation with an operational wavelength l, the fiber (100, 200, 300) having a longitudinal direction along a longitudinal axis and a transverse direction in a plane perpendicular to the longitudinal axis, the fiber (100, 200, 300) comprising: - a core region comprising a hollow core (101, 201, 301, 401, 501, 601, 801) extending along the longitudinal axis, and - a cladding (102, 202, 302, 402, 502, 602, 802) comprising a first cladding region (220, 320, 420, 520, 620, 820) surrounding the core (101, 201, 301, 401, 501, 601, 801) region and comprising a dielectric background material (222, 322, 422, 522, 622, 822), the first cladding region (220, 320, 420, 520, 620, 820) having a total cross-sectional cladding area, the first cladding region (220, 320, 420, 520, 620, 820) further comprising a number of longitudinally extending cladding elements located in the background material (222, 322, 422, 522, 622, 822) and having a total cross-sectional element area, wherein the first cladding region (220, 320, 420, 520, 620, 820) has a filling fraction f being defined as the ratio between the element area and the cladding area wherein - the cladding elements (221, 321, 421, 521, 621, 821) are made of metal and are oriented substantially parallel to the core (101, 201, 301, 401, 501, 601, 801) region in a transverse distance from the core (101, 201, 301, 401, 501, 601, 801), and wherein the distance L between neighbouring cladding elements (221, 321, 421, 521, 621, 821) is smaller than half the wavelength l, and wherein the cladding elements (221, 321, 421, 521, 621, 821) are arranged so that transverse magnetic radiation with a wavelength of l can propagate through the core (101, 201, 301, 401, 501, 601, 801) region. The invention further relates to a method relating to and the use of the inventive fiber.
摘要翻译：一种用于引导具有工作波长l的电磁辐射的光纤（100,200,300），所述光纤（100,200,300）在垂直于所述纵向轴线的平面中具有沿着纵向轴线和横向方向的纵向方向，所述纤维（100,200,300）包括： - 芯区域，包括沿所述纵向轴线延伸的中空芯体（101,201,301,401,501,601,801），以及 - 包层（102,202，包括围绕所述芯（101,201,301,401,501,601,801）区域的第一包层区域（220,320,420,520,620,820），并且包括介电背景材料（222,322,422,522,622,822），具有总横截面包层区域的第一包层区域（220,320,420,520,620,820），第一包层区域（220，还包括位于所述背景材料（222,322,422,522,622,822）中的多个纵向延伸的包覆元件，并且具有总截面元件面积，其中第一包层区域（220,320,420,520,620,820）具有填充分数f被定义为元件面积和包层面积之间的比率，其中包层元件（221 ，321,421,521,621,821）由金属制成并且基本上平行于与所述芯（101,201）的横向距离的所述芯（101,201,301,401,501,601,801）区域定向，301,401,501,601,801），并且其中相邻包层元件（221,321,421,521,621,821）之间的距离L小于波长l的一半，并且其中包层元件（221， 321,421,521,621,821），使得波长为l的横向磁辐射能够通过芯（101,201,301,401,501,601,801）区域传播。本发明还涉及涉及本发明纤维的方法和使用方法。

2. 发明申请

WO2005059612A1 PHOTONIC CRYSTAL FIBRES COMPRISING STRESS ELEMENTS 审中-公开
标题翻译：包含应力元件的光子晶体纤维
公开(公告)号：WO2005059612A1
公开(公告)日：2005-06-30
申请号：PCT/EP2004/053601
申请日：2004-12-20
申请人： CRYSTAL FIBRE A/S , FOLKENBERG, Jacob Riis , NIELSEN, Martin Dybendal , MORTENSEN, Niels Asger
发明人： FOLKENBERG, Jacob Riis , NIELSEN, Martin Dybendal , MORTENSEN, Niels Asger
IPC分类号： G02B6/16
CPC分类号： G02B6/02347 , C03B37/01217 , C03B37/0122 , C03B2203/14 , C03B2203/31 , C03B2203/42 , G02B6/02314 , G02B6/02352 , G02B6/02357 , G02B6/02361 , G02B6/02366 , G02B6/024 , G02B6/105
摘要： A photonic crystal fibre comprises a core region (251) for propagating light in a longitudinal direction of the fibre, a cladding region (255) surrounding the core region, the cladding region (255) comprising micro-structural elements (254) extending in the longitudinal direction, wherein the cladding region (255) further comprises at least one stress element (252) having a coefficient of thermal expansion α T,SAP and extending in the longitudinal direction of the photonic crystal fibre, the stress elements (252) being located in a cladding background material (255) having a coefficient of thermal expansion α T,cladback different from α T,SAP , and wherein the location of the at least one stress element (252) relative to the core region (251) and the micro-structural elements (254) and the coefficients of thermal expansion α T,SAP and α T,cladback are adapted to provide a stress induced birefringence in the core region (251) of the photonic crystal fibre. The invention may be useful in applications such as polarization maintaining fibres, fibre amplifiers or lasers.
摘要翻译：光子晶体光纤包括用于沿着光纤的纵向传播光的芯区（251），围绕芯区的包层区（255），包含区域（255）包括微结构元件（254），所述微结构元件其中所述包层区域（255）还包括至少一个应力元件（252），所述应力元件（252）具有热膨胀系数αT，SAP并且在所述光子晶体光纤的纵向方向上延伸，所述应力元件（252）位于具有热膨胀系数αT的包层背景材料（255），不同于αT的SAP覆层，并且其中至少一个应力元件（252）相对于芯区域（251）的位置和微结构元件（254），并且热膨胀系数αT，SAP和αT，复合材料适于在光子晶体光纤的芯区域（251）中提供应力诱导双折射。本发明可用于诸如偏振维持光纤，光纤放大器或激光器的应用中。

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