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公开(公告)号：US20100178504A1
公开(公告)日：2010-07-15
申请号：US12351221
申请日：2009-01-09
申请人： Xin Chen , Ming-Jun Li , Anping Liu
发明人： Xin Chen , Ming-Jun Li , Anping Liu
IPC分类号： B32B17/02
CPC分类号： G02B6/0365 , G02B6/03605 , G02B6/03633 , Y10T428/2962
摘要： An optical fiber includes a silica-based glass portion having an outer diameter of less than about 120 μm. The glass portion comprises a core, an inner cladding and a low index ring. The core comprises an index of refraction n1, and a relative refractive index percent Δ1% relative to pure silica glass. The inner cladding surrounds the core and comprises an index of refraction n2, a radial thickness of less than about 40 μm and a relative refractive index percent Δ2% relative to pure silica glass, wherein Δ1%>Δ2% and the difference between Δ1% and Δ2% is greater than 0.1%. The low index ring surrounds the inner cladding and comprises boron and fluorine, a radial thickness of less than about 20 μm, an index of refraction n3 and a third relative refractive index percent Δ3% relative to pure silica glass, wherein Δ2%>Δ3% and Δ3% is less than −0.5%.
摘要翻译： 光纤包括外径小于约120μm的二氧化硅基玻璃部分。 玻璃部分包括芯，内包层和低折射率环。 核心包括相对于纯二氧化硅玻璃的折射率n1和相对折射率百分比＆Dgr; 1％。 内部包层围绕芯部并且包括相对于纯石英玻璃的折射率n2，小于约40μm的径向厚度和相对折射率百分比＆Dgr; 2％，其中＆Dgr; 1％>＆Dgr; 2％和 ＆Dgr; 1％与＆Dgr; 2％之间的差异大于0.1％。 低折射率环围绕内包层并且包括硼和氟，相对于纯二氧化硅玻璃的径向厚度小于约20μm，折射率n3和第三相对折射率百分比＆Dgr; 3％，其中＆Dgr; 2 ％>＆Dgr; 3％和＆Dgr; 3％小于-0.5％。
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公开(公告)号：US07689084B2
公开(公告)日：2010-03-30
申请号：US12418766
申请日：2009-04-06
申请人： Xin Chen , Joohyun Koh , Ming-Jun Li , Anping Liu , Deborah Lynn Marlatt , Ji Wang
发明人： Xin Chen , Joohyun Koh , Ming-Jun Li , Anping Liu , Deborah Lynn Marlatt , Ji Wang
摘要： According to one example of the invention an optical fiber comprises: (i) a silica based core, said core having a core diameter greater than 80 μm and a numerical aperture NA≧0.24; and (ii) a silica based cladding in contact with and surrounding the core and having a second index of refraction n2, such that n1>n2; wherein the cladding includes B and F. Preferably the numerical aperture NA is at least 0.3.
摘要翻译： 根据本发明的一个示例，光纤包括：（i）二氧化硅基核，所述芯的芯直径大于80μm，数值孔径NA≥0.24; 和（ii）二氧化硅基包层，其与核心接触并包围并具有第二折射率n2，使得n1> n2; 其中所述包层包括B和F.优选地，所述数值孔径NA至少为0.3。
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公开(公告)号：US20090274428A1
公开(公告)日：2009-11-05
申请号：US12418766
申请日：2009-04-06
申请人： Xin Chen , Joohyun Koh , Ming-Jun Li , Anping Liu , Deborah Lynn Marlatt , Ji Wang
发明人： Xin Chen , Joohyun Koh , Ming-Jun Li , Anping Liu , Deborah Lynn Marlatt , Ji Wang
摘要： According to one example of the invention an optical fiber comprises: (i) a silica based core, said core having a core diameter greater than 80 μm and a numerical aperture NA≧0.24; and (ii) a silica based cladding in contact with and surrounding the core and having a second index of refraction n2, such that n1>n2; wherein the cladding includes B and F. Preferably the numerical aperture NA is at least 0.3.
摘要翻译： 根据本发明的一个示例，光纤包括：（i）二氧化硅基核，所述芯的芯直径大于80μm，数值孔径NA> = 0.24; 和（ii）二氧化硅基包层，其与核心接触并包围并具有第二折射率n2，使得n1> n2; 其中所述包层包括B和F.优选地，所述数值孔径NA至少为0.3。
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公开(公告)号：US20080279516A1
公开(公告)日：2008-11-13
申请号：US11801896
申请日：2007-05-11
申请人： Xin Chen , Joohyun Koh , Ming-Jun Li , Anping Liu , Jianguo Wang
发明人： Xin Chen , Joohyun Koh , Ming-Jun Li , Anping Liu , Jianguo Wang
IPC分类号： G02B6/02
CPC分类号： C03C25/106 , G02B6/02395 , G02B6/03683
摘要： An optical fiber includes a core and a cladding, said cladding having a refractive index nc a first coating directly contacting the cladding of said fiber, said coating having a thickness of less than 10 microns, said coating having a refractive index delta %=100×(ni2-nc2)/2ni2 less than −1 percent. In another aspect, an optical fiber includes a core and a cladding, said cladding having a refractive index nc, a first coating directly contacting the cladding of said fiber, said fiber comprising a glass diameter less than 100 microns, said coating having a thickness of at least 8 microns, said coating having a refractive index delta %=100×(ni2-nc2)/2ni2 less than −1 percent.
摘要翻译： 光纤包括芯和包层，所述包层具有直接接触所述纤维的包层的第一涂层的折射率n n，所述涂层具有小于10微米的厚度，所述涂层具有 折射率δ％= 100×（n×2）/ 2n（i） 2 小于-1％。 在另一方面，光纤包括芯和包层，所述包层具有折射率n C c，直接接触所述纤维的包层的第一涂层，所述纤维包含小于100的玻璃直径 所述涂层具有至少8微米的厚度，所述涂层具有折射率Δ％= 100×（n×2） 小于-1％的小于2％。
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公开(公告)号：US08428415B2
公开(公告)日：2013-04-23
申请号：US12351221
申请日：2009-01-09
申请人： Xin Chen , Ming-Jun Li , Anping Liu
发明人： Xin Chen , Ming-Jun Li , Anping Liu
IPC分类号： G02B6/036
CPC分类号： G02B6/0365 , G02B6/03605 , G02B6/03633 , Y10T428/2962
摘要： An optical fiber includes a silica-based glass portion having an outer diameter of less than about 120 μm. The glass portion comprises a core, an inner cladding and a low index ring. The core comprises an index of refraction n1, and a relative refractive index percent Δ1% relative to pure silica glass. The inner cladding surrounds the core and comprises an index of refraction n2, a radial thickness of less than about 40 μm and a relative refractive index percent Δ2% relative to pure silica glass, wherein Δ1%>Δ2% and the difference between Δ1% and Δ2% is greater than 0.1%. The low index ring surrounds the inner cladding and comprises boron and fluorine, a radial thickness of less than about 20 μm, an index of refraction n3 and a third relative refractive index percent Δ3% relative to pure silica glass, wherein Δ2%>Δ3% and Δ3% is less than −0.5%.
摘要翻译： 光纤包括外径小于约120μm的二氧化硅基玻璃部分。 玻璃部分包括芯，内包层和低折射率环。 芯包括折射率n1，相对于纯石英玻璃的相对折射率百分比Δ1％。 内部包层围绕芯部并且包括折射率n2，小于约40μm的径向厚度和相对于纯石英玻璃的相对折射率百分比Δ2％，其中Delta1％> Delta2％，Delta1％和 Delta2％大于0.1％。 低折射率环围绕内包层并且包括硼和氟，相对于纯二氧化硅玻璃的径向厚度小于约20μm，折射率n3和第三相对折射率百分比Δ3％，其中Delta2％> Delta3％ 而Delta3％小于-0.5％。
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公开(公告)号：US20130047676A1
公开(公告)日：2013-02-28
申请号：US13587091
申请日：2012-08-16
申请人： Xin Chen , Charles Frederick Laing , Ming-Jun Li , Anping Liu , Eric John Mozdy , Joseph Doull Thaler
发明人： Xin Chen , Charles Frederick Laing , Ming-Jun Li , Anping Liu , Eric John Mozdy , Joseph Doull Thaler
IPC分类号： C03B37/025
CPC分类号： C03B37/02745 , C03B37/02763 , C03B2203/06 , C03B2203/18 , C03B2203/20 , Y02P40/57
摘要： A method for producing an optical fiber is provided. The method includes the steps of drawing an optical fiber from a heated glass source in a furnace and introducing index perturbations to the optical fiber via a plurality of perturbation sources arranged at a plurality of different azimuthal locations. The index perturbations are introduced synchronously at different locations along the axial length of the fiber by the plurality of perturbation sources in a generally helical pattern on the outside surface of the fiber in one embodiment. According to another embodiment, the index perturbations are introduced by the plurality of perturbation sources at different frequencies.
摘要翻译： 提供一种光纤的制造方法。 该方法包括以下步骤：在炉中从加热的玻璃源中拉出光纤，并且通过布置在多个不同方位位置处的多个扰动源将折射率扰动引入光纤。 在一个实施例中，通过多个扰动源以纤维的外表面上的大致螺旋图案沿着纤维的轴向长度在不同位置同时引入折射率扰动。 根据另一实施例，索引扰动由多个扰动源以不同的频率引入。
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公开(公告)号：US20100195194A1
公开(公告)日：2010-08-05
申请号：US12669664
申请日：2008-07-16
申请人： Xin Chen , Joohyun Koh , Ming-Jun Li , Anping Liu
发明人： Xin Chen , Joohyun Koh , Ming-Jun Li , Anping Liu
CPC分类号： G02B6/14 , G02B6/024 , G02B6/03644 , G02B6/03661 , G02B6/03688 , H01S3/06708 , H01S3/06712 , H01S3/06729 , H01S3/08045 , H01S3/094007
摘要： A large-mode-area (LMA) optical fiber (10) that operates as a single-mode optical fiber. The optical fiber includes a core region (20) surrounded by an inner cladding (32), which in turn is surrounded by an outer cladding (40). The inner cladding includes at least one up-doped ring region (32R1). The ring region is configured to form a large attenuation differential between the higher-order modes and the fundamental mode so only that the fundamental mode remains traveling in the optical fiber. If necessary, the optical fiber can include a bend (10B) having a select “resonant” bend diameter (DB) that increases the relative attenuation of the fundamental and higher-order modes. The optical fiber supports an effective mode field diameter (MFD) of up to 40 μm to 50 μm. As a result, detrimental non-linear effects are suppressed, which allows the optical fiber to carry substantially more optical power than conventional LMA optical fibers. The LMA optical fiber is thus eminently suited for a number of optical-fiber-based applications calling for high optical power, such as fiber lasers and pump sources for wavelength conversion.
摘要翻译： 作为单模光纤工作的大模（LMA）光纤（10）。 光纤包括由内包层（32）包围的芯区域（20），该内部区域又由外包层（40）围绕。 内包层包括至少一个上掺杂环区（32R1）。 环形区域被配置为在高阶模式和基模之间形成大的衰减差分，从而仅使基本模式保持在光纤中行进。 如果需要，光纤可以包括具有选择的“共振”弯曲直径（DB）的弯曲（10B），该弯曲直径（DB）增加了基极和高阶模的相对衰减。 光纤支持高达40μm至50μm的有效模场直径（MFD）。 结果，抑制了有害的非线性效应，这使得光纤比传统的LMA光纤承载更多的光功率。 因此，LMA光纤非常适合于需要高光功率的多个基于光纤的应用，例如用于波长转换的光纤激光器和泵浦光源。
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8.发明授权公开(公告)号：US08744782B2
公开(公告)日：2014-06-03
申请号：US12947066
申请日：2010-11-16
申请人： Xin Chen , Ming-Jun Li , Anping Liu , Daniel Aloysius Nolan
发明人： Xin Chen , Ming-Jun Li , Anping Liu , Daniel Aloysius Nolan
CPC分类号： G01L1/243 , G01K11/32 , G01K2011/322 , G01L1/242
摘要： A system for simultaneously determining strain and temperature characteristics of an object comprising: (i) at least one optical fiber having at least two Brillouin peaks; (ii) at least one connector securing the optical fiber to the object to be monitored; (iii) a laser positioned to provide laser light to said at least one optical fiber; (iv) a device measuring frequencies of said at least two Brillouin peaks, and determining frequency shifts of said at least two Brillouin peaks for said at least one optical fiber along the length of fiber; and (v) a system calculating strain and temperature characteristics along said fiber, based on the coefficients of strain and temperature as well as the measured Brillouin frequency shifts for said optical fiber along the length of said optical fiber.
摘要翻译： 一种用于同时确定物体的应变和温度特性的系统，包括：（i）至少一个具有至少两个布里渊峰的光纤; （ii）至少一个将光纤固定到待监测对象的连接器; （iii）定位成向所述至少一个光纤提供激光的激光器; （iv）测量所述至少两个布里渊峰的频率的装置，以及确定沿所述光纤长度的所述至少一个光纤的所述至少两个布里渊峰的频移; 以及（v）基于应变和温度的系数以及所述光纤沿着所述光纤的长度测量的布里渊频移的系统来计算沿着所述光纤的应变和温度特性的系统。
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公开(公告)号：US09290406B2
公开(公告)日：2016-03-22
申请号：US13587091
申请日：2012-08-16
申请人： Xin Chen , Charles Frederick Laing , Ming-Jun Li , Anping Liu , Eric John Mozdy , Joseph Doull Thaler
发明人： Xin Chen , Charles Frederick Laing , Ming-Jun Li , Anping Liu , Eric John Mozdy , Joseph Doull Thaler
IPC分类号： C03B37/025 , C03B37/027
CPC分类号： C03B37/02745 , C03B37/02763 , C03B2203/06 , C03B2203/18 , C03B2203/20 , Y02P40/57
摘要： A method for producing an optical fiber is provided. The method includes the steps of drawing an optical fiber from a heated glass source in a furnace and introducing index perturbations to the optical fiber via a plurality of perturbation sources arranged at a plurality of different azimuthal locations. The index perturbations are introduced synchronously at different locations along the axial length of the fiber by the plurality of perturbation sources in a generally helical pattern on the outside surface of the fiber in one embodiment. According to another embodiment, the index perturbations are introduced by the plurality of perturbation sources at different frequencies.
摘要翻译： 提供一种光纤的制造方法。 该方法包括以下步骤：在炉中从加热的玻璃源中拉出光纤，并且通过布置在多个不同方位位置处的多个扰动源将折射率扰动引入光纤。 在一个实施例中，通过多个扰动源以纤维的外表面上的大致螺旋图案沿着纤维的轴向长度在不同位置同时引入折射率扰动。 根据另一实施例，索引扰动由多个扰动源以不同的频率引入。
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公开(公告)号：US08797642B2
公开(公告)日：2014-08-05
申请号：US12669664
申请日：2008-07-16
申请人： Xin Chen , Joohyun Koh , Ming-Jun Li , Anping Liu
发明人： Xin Chen , Joohyun Koh , Ming-Jun Li , Anping Liu
CPC分类号： G02B6/14 , G02B6/024 , G02B6/03644 , G02B6/03661 , G02B6/03688 , H01S3/06708 , H01S3/06712 , H01S3/06729 , H01S3/08045 , H01S3/094007
摘要： A large-mode-area (LMA) optical fiber (10) that operates as a single-mode optical fiber. The optical fiber includes a core region (20) surrounded by an inner cladding (32), which in turn is surrounded by an outer cladding (40). The inner cladding includes at least one up-doped ring region (32R1). The ring region is configured to form a large attenuation differential between the higher-order modes and the fundamental mode so only that the fundamental mode remains traveling in the optical fiber. If necessary, the optical fiber can include a bend (10B) having a select “resonant” bend diameter (DB) that increases the relative attenuation of the fundamental and higher-order modes. The optical fiber supports an effective mode field diameter (MFD) of up to 40 μm to 50 μm. As a result, detrimental non-linear effects are suppressed, which allows the optical fiber to carry substantially more optical power than conventional LMA optical fibers. The LMA optical fiber is thus eminently suited for a number of optical-fiber-based applications calling for high optical power, such as fiber lasers and pump sources for wavelength conversion.
摘要翻译： 作为单模光纤工作的大模（LMA）光纤（10）。 光纤包括由内包层（32）包围的芯区域（20），该内部区域又由外包层（40）围绕。 内包层包括至少一个上掺杂环区（32R1）。 环形区域被配置为在高阶模式和基模之间形成大的衰减差分，从而仅使基本模式保持在光纤中行进。 如果需要，光纤可以包括具有选择的“共振”弯曲直径（DB）的弯曲（10B），该弯曲直径（DB）增加了基极和高阶模的相对衰减。 光纤支持高达40μm至50μm的有效模场直径（MFD）。 结果，抑制了有害的非线性效应，这使得光纤比传统的LMA光纤承载更多的光功率。 因此，LMA光纤非常适合于需要高光功率的多个基于光纤的应用，例如用于波长转换的光纤激光器和泵浦光源。
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