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21. 发明授权

EP1203251B1 USE OF A LASER TO FUSION-SPLICE OPTICAL COMPONENTS OF SUBSTANTIALLY DIFFERENT CROSS-SECTIONAL AREAS 有权
标题翻译：激光器的使用，以SCHMELZSPLEISSEN差异有金属十字斩光学组件
公开(公告)号：EP1203251B1
公开(公告)日：2005-04-20
申请号：EP00990925.0
申请日：2000-11-27
申请人： Lightpath Technologies, Inc.
发明人： WALTERS, William, P. , FITCH, Mark, A. , FOURNIER, Paul , HARRIS, Marc, Farrell , BERNARD, Pierre
IPC分类号： G02B6/255
CPC分类号： G02B6/2551 , G02B6/24 , G02B6/262 , G02B6/32 , G02B6/4204
摘要： A method is provided for fusion-splicing with a laser beam (10) at least two optical components (14a, 14b) to a different optical component (16), the different optical component (e.g., an optical element (16) such as a lens) having a surface that has a comparatively larger cross-sectional area than a surface of the other optical components (e.g., at least two optical fibers (14a, 14b)). The method comprises: a) aligning the optical components (14a, 14b, 16) along an axis; b) turning on a directional laser heat source to form the laser beam (10); c) directing the laser beam (10) to be collinear with those optical components (14a, 14b) having a smaller cross-sectional area; d) ensuring that the laser beam (10) strikes the surface of the optical component (16) having the larger cross-sectional area at normal or near normal incidence so that absorption of the laser beam (10) is much more efficient on the surface; e) adjusting the power level of the laser beam (10) to reach a temperature equal to or higher than the softening temperature of the surface of the optical component (16) having the larger cross-sectional area to form a softening region thereon, thereby achieving the fusion-splicing; and f) turning off the laser.

22. 发明授权

EP1147441B1 FABRICATION OF COLLIMATORS EMPLOYING OPTICAL FIBERS FUSION-SPLICED TO OPTICAL ELEMENTS OF SUBSTANTIALLY LARGER CROSS-SECTIONAL AREAS 有权
标题翻译：与光纤制造准直器，拼接光学元件具有更大的横截面
公开(公告)号：EP1147441B1
公开(公告)日：2004-07-07
申请号：EP00980812.2
申请日：2000-11-27
申请人： Lightpath Technologies Inc.
发明人： BERNARD, Pierre , FITCH,Mark A. , FOURNIER, Paul , HARRIS, Marc, Farrell , WALTERS, William, P.
IPC分类号： G02B6/26 , G02B6/255
CPC分类号： G02B6/24 , G02B6/2551 , G02B6/262 , G02B6/32 , G02B6/4204
摘要： A fiber collimator (110, 210) is provided, comprising at least two optical components, one of the optical components (e.g., an optical element such as a collimating lens or a plano-plano pellet) (14) having a surface (14a) that has a comparatively larger cross-sectional area than the surface of the other optical component(s) (e.g., at least one optical fiber) (12). The optical components (12, 14) are joined together by fusion-splicing, using a laser. A gradient (28 or 28') in the index of refraction is provided in at least that portion of the surface (14a) of the optical element (14) to which the optical fiber(s) (12) is fusion-spliced or at the tip of the optical fiber. The gradient (28 or 28') is either formed prior to or during the fusion-splicing. Back-reflection is minimized, pointing accuracy is improved, and power handling ability is increased.

23. 发明授权

EP0783711B1 GRIN LENS AND METHOD OF MANUFACTURING 失效
标题翻译： GRIN透镜及其制造方法
公开(公告)号：EP0783711B1
公开(公告)日：2003-09-24
申请号：EP95913992.4
申请日：1995-03-08
申请人： LIGHTPATH TECHNOLOGIES, INC.
发明人： XU, Xiaojie, Dr. , Savard, Michael E.
IPC分类号： G02B3/00
CPC分类号： G02B3/0087

24. 发明公开

EP1203251A2 USE OF A LASER TO FUSION-SPLICE OPTICAL COMPONENTS OF SUBSTANTIALLY DIFFERENT CROSS-SECTIONAL AREAS 有权
标题翻译：激光器的使用，以SCHMELZSPLEISSEN差异有金属十字斩光学组件
公开(公告)号：EP1203251A2
公开(公告)日：2002-05-08
申请号：EP00990925.0
申请日：2000-11-27
申请人： Lightpath Technologies Inc.
发明人： WALTERS, William, P. , FITCH, Mark, A. , FOURNIER, Paul , HARRIS, Marc, Farrell , BERNARD, Pierre
IPC分类号： G02B6/255
CPC分类号： G02B6/2551 , G02B6/24 , G02B6/262 , G02B6/32 , G02B6/4204
摘要： A method is provided for fusion-splicing with a laser beam (10) at least two optical components (14a, 14b) to a different optical component (16), the different optical component (e.g., an optical element (16) such as a lens) having a surface that has a comparatively larger cross-sectional area than a surface of the other optical components (e.g., at least two optical fibers (14a, 14b)). The method comprises: a) aligning the optical components (14a, 14b, 16) along an axis; b) turning on a directional laser heat source to form the laser beam (10); c) directing the laser beam (10) to be collinear with those optical components (14a, 14b) having a smaller cross-sectional area; d) ensuring that the laser beam (10) strikes the surface of the optical component (16) having the larger cross-sectional area at normal or near normal incidence so that absorption of the laser beam (10) is much more efficient on the surface; e) adjusting the power level of the laser beam (10) to reach a temperature equal to or higher than the softening temperature of the surface of the optical component (16) having the larger cross-sectional area to form a softening region thereon, thereby achieving the fusion-splicing; and f) turning off the laser.

25. 发明公开

EP0783711A1 GRIN LENS AND METHOD OF MANUFACTURING 失效
标题翻译： GRIN透镜及其制造方法
公开(公告)号：EP0783711A1
公开(公告)日：1997-07-16
申请号：EP95913992.0
申请日：1995-03-08
申请人： LIGHTPATH TECHNOLOGIES, INC.
发明人： XIAOJIE, Xu , MICHAEL, E., Savard
IPC分类号： G02B3
CPC分类号： G02B3/0087
摘要： An optical element (140) having an optical axis (152) with front and rear surfaces (142, 144), and comprising a plurality of definable adjacent zones of optical material, each zone having a definable refractive index different from the refractive index of an adjacent zone and an Abbe number, the zones of optical materials being arranged parallel to each other to define a profile of refractive indices which is symmetric about a plane of symmetry along the optical axis (150) of the element (140) and parallel to the zones. In one embodiment the optical element is a spectrally invariant lens.

26. 发明授权

EP1128960B1 USE OF A LASER TO FUSION-SPLICE OPTICAL COMPONENTS OF SUBSTANTIALLY DIFFERENT CROSS-SECTIONAL AREAS 有权
标题翻译：使用激光焊接融合光学组件具有非常不同的断面
公开(公告)号：EP1128960B1
公开(公告)日：2005-05-04
申请号：EP99932164.9
申请日：1999-07-01
申请人： Lightpath Technologies, Inc.
发明人： WALTERS, William, P. , FITCH, Mark, A. , FOURNIER, Paul , HARRIS, Marc, Farrell , BERNARD, Pierre
IPC分类号： B32B31/28 , G02B6/255
CPC分类号： G02B6/32 , G02B6/24 , G02B6/2551 , G02B6/4204
摘要： A method is provided for fusion-splicing with a laser beam (10) two optical components (14, 16), one of the optical components (16) (e.g., an optical element such as a lens) having a surface that has a comparatively larger cross-sectional area than a surface of the other optical component (14) (e.g., an optical fiber). The method comprises aligning the two optical components along one axis and directing a laser beam to be collinear with the optical component having a smaller cross-sectional area and normal or near normal to the surface of the optical component having a larger cross-sectional area.

27. 发明公开

EP1147441A1 FABRICATION OF COLLIMATORS EMPLOYING OPTICAL FIBERS FUSION-SPLICED TO OPTICAL ELEMENTS OF SUBSTANTIALLY LARGER CROSS-SECTIONAL AREAS 有权
标题翻译：与光纤制造准直器，拼接光学元件具有更大的横截面
公开(公告)号：EP1147441A1
公开(公告)日：2001-10-24
申请号：EP00980812.2
申请日：2000-11-27
申请人： Lightpath Technologies Inc.
发明人： BERNARD, Pierre , FITCH, Mark, A. , FOURNIER, Paul , HARRIS, Marc, Farrell , WALTERS, William, P.
IPC分类号： G02B6/26 , G02B6/255
CPC分类号： G02B6/24 , G02B6/2551 , G02B6/262 , G02B6/32 , G02B6/4204
摘要： A fiber collimator (110, 210) is provided, comprising at least two optical components, one of the optical components (e.g., an optical element such as a collimating lens or a plano-plano pellet) (14) having a surface (14a) that has a comparatively larger cross-sectional area than the surface of the other optical component(s) (e.g., at least one optical fiber) (12). The optical components (12, 14) are joined together by fusion-splicing, using a laser. A gradient (28 or 28') in the index of refraction is provided in at least that portion of the surface (14a) of the optical element (14) to which the optical fiber(s) (12) is fusion-spliced or at the tip of the optical fiber. The gradient (28 or 28') is either formed prior to or during the fusion-splicing. Back-reflection is minimized, pointing accuracy is improved, and power handling ability is increased.

28. 发明公开

EP1128960A1 USE OF A LASER TO FUSION-SPLICE OPTICAL COMPONENTS OF SUBSTANTIALLY DIFFERENT CROSS-SECTIONAL AREAS 有权
标题翻译：使用激光焊接融合光学组件具有非常不同的断面
公开(公告)号：EP1128960A1
公开(公告)日：2001-09-05
申请号：EP99932164.9
申请日：1999-07-01
申请人： Lightpath Technologies Inc.
发明人： WALTERS, William, P. , FITCH, Mark, A. , FOURNIER, Paul , HARRIS, Marc, Farrell , BERNARD, Pierre
IPC分类号： B32B31/28 , G02B6/255
CPC分类号： G02B6/32 , G02B6/24 , G02B6/2551 , G02B6/4204
摘要： A method is provided for fusion-splicing with a laser beam (10) two optical components (14, 16), one of the optical components (16) (e.g., an optical element such as a lens) having a surface that has a comparatively larger cross-sectional area than a surface of the other optical component (14) (e.g., an optical fiber). The method comprises aligning the two optical components along one axis and directing a laser beam to be collinear with the optical component having a smaller cross-sectional area and normal or near normal to the surface of the optical component having a larger cross-sectional area.

29. 发明公开

EP0710366A1 GRADIENT INDEX LENS ELEMENTS 失效
标题翻译：渐变指数透镜元件
公开(公告)号：EP0710366A1
公开(公告)日：1996-05-08
申请号：EP94922558.0
申请日：1994-07-15
申请人： LIGHTPATH TECHNOLOGIES, INC.
发明人： MANHART, Paul, K. , STUHLINGER, Tilman, W. , CASTLE, Kenneth, R. , RUDA, Mitchell, C.
IPC分类号： G02B3
CPC分类号： G02B3/0087
摘要： A lens element (20) is formed from a monolithic unit having two sections (36A, 39A) aligned on an optical axis. A selected one of the sections has an axial gradient refractive index, and the other has a homogeneous refractive index. The axial gradient index material may be selected such the third order spherical aberration of the element is zero. The axial gradient index material may be selected such that similarly constructed elements having shape factors between about 0 and 2.0 also have zero third order spherical aberration. The refractive index preferably varies as a non-linear function of at least distance along the optical axis. An element is formed from a material having an axial gradient dispersion. Shape factor and dispersion gradient may be selected such that the element is achromatic.
摘要翻译：透镜元件（20）由具有在光轴上对准的两个部分（36A，39A）的单片单元形成。选定的一个部分具有轴向梯度折射率，而另一个具有均匀的折射率。可以选择轴向梯度折射率材料，使得该元件的三阶球差为零。可以选择轴向梯度折射率材料，使得具有介于约0和2.0之间的形状因子的类似构造的元件也具有零三阶球面像差。折射率优选作为至少沿光轴的距离的非线性函数而变化。元件由具有轴向梯度分散的材料形成。可以选择形状因子和色散梯度，使得该元件是无色的。

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