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公开(公告)号：US20090129735A1
公开(公告)日：2009-05-21
申请号：US12360752
申请日：2009-01-27
申请人： Martin Seifert , Upendra H. Manyam , Mansoor Alam , Kanishka Tankala , Jaroslaw Abramczyk , Douglas Guertin , Nils Jacobson
发明人： Martin Seifert , Upendra H. Manyam , Mansoor Alam , Kanishka Tankala , Jaroslaw Abramczyk , Douglas Guertin , Nils Jacobson
IPC分类号： G02B6/02
CPC分类号： C03C25/105 , G02B6/02033
摘要： An optical fiber comprising a multimode glass core having a diameter of at least 250 microns and an index of refraction and a polymer cladding having a thickness and contactingly surrounding a glass portion of the fiber so as to define an interface between the glass portion and the polymer cladding. The polymer cladding can have a first index of refraction that is less than the index of refraction. The fiber can comprise a density of less than 0.25 non-conforming regions having a diameter of 25 microns or greater per millimeter of length along the fiber, where each of the non-conforming regions is a region visible to the human eye under an optical microscope and having at least a portion thereof within a selected distance of the interface. The selected distance can be less than or equal to the thickness of the polymer cladding. The optical microscope can have a total magnification of about 200. The polymer cladding can be applied to at least a part of the optical fiber in at least a class 1000 environment. Methods of using optical fibers, including receiving with an optical fiber optical energy from a source and guiding the optical energy with the optical fiber, wherein the optical energy comprises at least one of 1) pulses each comprising a peak power of at least 10 kW, 2) an average power of at least 50 Watts, or 3) an average power density of at least 2.9 kW/cm2.
摘要翻译： 一种光纤，其包括具有至少250微米直径的多模玻璃芯和折射率和聚合物包层，其具有厚度并且接触地围绕所述纤维的玻璃部分以限定所述玻璃部分和所述聚合物之间的界面 包层 聚合物包层可以具有小于折射率的第一折射率。 纤维可以包含小于0.25个不均匀区域的密度，沿着纤维具有每毫米长度的直径为25微米或更大的不符合区域，其中每个不一致区域是在光学显微镜下人眼可见的区域 并且在接口的选定距离内具有至少一部分。 所选择的距离可以小于或等于聚合物包层的厚度。 光学显微镜可以具有约200的总放大率。聚合物包层可以在至少1000级环境中施加到光纤的至少一部分。 使用光纤的方法，包括从光源接收光纤光能并用光纤引导光能，其中光能包括以下各项中的至少一个：每个脉冲包括至少10kW的峰值功率， 2）至少50瓦的平均功率，或3）平均功率密度为至少2.9kW / cm 2。
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公开(公告)号：US07483610B2
公开(公告)日：2009-01-27
申请号：US11121501
申请日：2005-05-03
申请人： Martin Seifert , Upendra H. Manyam , Mansoor Alam , Kanishka Tankala , Jaroslaw Abramczyk , Douglas Guertin , Nils Jacobson
发明人： Martin Seifert , Upendra H. Manyam , Mansoor Alam , Kanishka Tankala , Jaroslaw Abramczyk , Douglas Guertin , Nils Jacobson
IPC分类号： G02B6/02
CPC分类号： C03C25/105 , G02B6/02033
摘要： An optical fiber comprising a multimode glass core having a diameter of at least 250 microns and an index of refraction and a polymer cladding having a thickness and contactingly surrounding a glass portion of the fiber so as to define an interface between the glass portion and the polymer cladding. The polymer cladding can have a first index of refraction that is less than the index of refraction. The fiber can comprise a density of less than 0.25 non-conforming regions having a diameter of 25 microns or greater per millimeter of length along the fiber, where each of the non-conforming regions is a region visible to the human eye under an optical microscope and having at least a portion thereof within a selected distance of the interface. The selected distance can be less than or equal to the thickness of the polymer cladding. The optical microscope can have a total magnification of about 200. The polymer cladding can be applied to at least a part of the optical fiber in at least a class 1000 environment. Methods of using optical fibers, including receiving with an optical fiber optical energy from a source and guiding the optical energy with the optical fiber, wherein the optical energy comprises at least one of 1) pulses each comprising a peak power of at least 10 kW, 2) an average power of at least 50 Watts, or 3) an average power density of at least 2.9 kW/cm2.
摘要翻译： 一种光纤，其包括具有至少250微米直径的多模玻璃芯和折射率和聚合物包层，其具有厚度并且接触地围绕所述纤维的玻璃部分以限定所述玻璃部分和所述聚合物之间的界面 包层 聚合物包层可以具有小于折射率的第一折射率。 纤维可以包含小于0.25个不均匀区域的密度，沿着纤维具有每毫米长度的直径为25微米或更大的不符合区域，其中每个不一致区域是在光学显微镜下人眼可见的区域 并且在接口的选定距离内具有至少一部分。 所选择的距离可以小于或等于聚合物包层的厚度。 光学显微镜可以具有约200的总放大率。聚合物包层可以在至少1000级环境中施加到光纤的至少一部分。 使用光纤的方法，包括从光源接收光纤光能并用光纤引导光能，其中光能包括以下各项中的至少一个：每个脉冲包括至少10kW的峰值功率， 2）至少50瓦的平均功率，或3）平均功率密度为至少2.9kW / cm 2。
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公开(公告)号：US07317857B2
公开(公告)日：2008-01-08
申请号：US11120358
申请日：2005-05-02
IPC分类号： G02B6/02
CPC分类号： G02B6/0288 , G02B6/02033 , G02B6/02038 , G02B6/03611 , G02B6/0365 , G02B6/14
摘要： An optical fiber can include a glass core that is multimode at a selected wavelength and that comprises an index of refraction and a diameter Dcore, a glass cladding disposed about said glass core, said glass cladding comprising an outer diameter Dcladding and a first index of refraction that is less than said index of refraction of said core, and a second cladding disposed about said glass cladding, said second cladding comprising an optically cured polymer, said polymer comprising an index of refraction that is less than said first index of refraction. In certain embodiments, the fiber can include various other features. For example, [Dcladding/Dcore]2 can be no greater than 1.5; the polymer can have a modulus of no greater than 100 MPa; the core can include means for affecting the power distribution amongst modes propagated by the core, such as by having a non circular outer perimeter; the core can support at least 100 modes at the selected wavelength; Dcore can be at least 250 microns; the fiber can include a region disposed about the second cladding, and the region can comprise a polymer comprising an index of refraction that is greater than the index of refraction of said core. The fiber can be used, for example, for delivering light having the selected wavelength to or from a work object.
摘要翻译： 光纤可以包括在所选波长处多模并且包括折射率和直径D芯的玻璃芯，玻璃包层围绕所述玻璃芯设置，所述玻璃包层包括外部 并且第一折射率小于所述芯的所述折射率，以及围绕所述玻璃包层设置的第二包层，所述第二包层包含光学固化的聚合物，所述聚合物包含 折射率小于所述第一折射率。 在某些实施例中，纤维可以包括各种其它特征。 例如，[D＆lt; N＆lt; N＆lt; N＆gt; / D核心＆lt; 2＆gt; 2＆lt; 2＆gt;可以不大于1.5; 聚合物的模量可以不大于100MPa; 芯可以包括用于影响由芯传播的模式之间的功率分布的装置，例如通过具有非圆形外周; 核心可以支持所选波长的至少100个模式; 核心可以是至少250微米; 纤维可以包括围绕第二包层设置的区域，并且该区域可以包括聚合物，其包括大于所述芯的折射率的折射率。 纤维可以用于例如将具有所选波长的光传送到工作对象或从工作对象传送。
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公开(公告)号：US07050686B2
公开(公告)日：2006-05-23
申请号：US10911812
申请日：2004-08-05
CPC分类号： G02B6/024
摘要： A fiber optic article can comprise a core, an inner region disposed about the core and a cladding disposed about the inner region. The index of refraction of the cladding can be less than that of the inner region, and the index of refraction of the inner region can be less than that of the core. The fiber can include a second cladding disposed about the cladding, where the second cladding has an index of refraction that is less than the index of refraction of the cladding. The inner region can have a non circular outer perimeter that includes at least one inwardly oriented section. The article can be elongate along a longitudinal axis and can include at least one longitudinally extending region, such as a stress inducing region, for providing birefringence and the inwardly oriented region can face the longitudinally extending region. The fiber optic article can include active material for providing light responsive to the article receiving pump light, such as, for example, one or more rare earths. The rare earths can include erbium and ytterbium.
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5.发明授权公开(公告)号：US07724422B2
公开(公告)日：2010-05-25
申请号：US10597592
申请日：2005-01-31
IPC分类号： H01S3/00
CPC分类号： G02B6/14 , G02B6/024 , G02B6/105 , H01S3/06712 , H01S3/06729 , H01S3/0675 , H01S3/094007 , H01S3/0941 , H01S3/1618
摘要： Optical apparatus (110, 500, 600, 800, 1000) for providing light having a selected linear polarization having a polarization ratio, the apparatus (110, 500, 600, 800, 1000) comprising a length of optical fiber (120, 504, 604, 804, 1001) comprising a rare earth for providing light having a first wavelength responsive to receiving pump light having a second wavelength that is different than said first wavelength, wherein if the length of optical fiber (120, 504, 604, 804, 1004) were placed in a first position between the length of fiber (120, 504, 604, 804, 1004) is substantially linearly oriented (20) the fiber (120, 504, 604, 804, 1004) could propagate at the first wavelength a fundamental mode and a plurality of higher order modes and the apparatus (110, 500, 600, 800, 1000) could provide light having a first polarization ratio for the selected linear polarization and an M2 parameter, and wherein the length of fiber (120, 504, 604, 804, 1004) is positioned in a second position that increases the bend loss of the fiber relative to the first position such that, responsive to the increased bend loss, the apparatus (110, 500, 600, 800, 1000) can provide light having a reduced M2 parameter as well as a second polarization ratio for the selected polarization that is increased relative to the first polarization ratio, the increase being at least 6 dB greater than the first polarization ratio, and wherein when the length of fiber (120, 504, 604, 804, 1004) is in the second position the apparatus (110, 500, 600, 800, 1000) can provide a slope efficiency that is at least 50% of the ratio of the second wavelength to the first wavelength.
摘要翻译： 用于提供具有偏振比的所选线性偏振光的光学装置（110,500,600,800,1000），所述装置（110,500,600,800,1000）包括一段长度的光纤（120,504， 包括稀土，用于提供响应于接收具有不同于所述第一波长的第二波长的泵浦光的具有第一波长的光，其中如果光纤的长度（120,504,604,801， 1004）被放置在光纤（120,504,604,804,1004）的长度之间的第一位置，基本上线性地定向（20），光纤（120,504,604,804,1004）可以在第一波长处传播 基本模式和多个高阶模式，并且所述装置（110,500,600,800,1000）可以提供具有用于所选择的线性偏振的第一偏振比的光和M2参数，并且其中光纤的长度（120 ，504,604,804,1004）定位在第二位置， 折射纤维相对于第一位置的弯曲损耗，使得响应于增加的弯曲损耗，装置（110,500,600,800,1000）可以提供具有减小的M2参数以及第二偏振比的光 对于相对于第一偏振比增加的所选偏振，增加比第一偏振比大至少6dB，并且其中当光纤（120,504,604,804,1004）的长度在第二偏振比 定位装置（110,500,600,800,1000）可以提供至少为第二波长与第一波长的比率的50％的斜率效率。
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公开(公告)号：US07072552B2
公开(公告)日：2006-07-04
申请号：US11004344
申请日：2004-12-02
IPC分类号： G02B6/02
CPC分类号： C03B37/0279 , C03B37/02754 , C03B37/02763 , C03B37/02781 , C03B2201/31 , C03B2201/60 , C03B2201/70 , C03B2201/80 , C03B2201/86 , C03B2203/14 , C03B2203/18 , C03B2203/42 , G02B6/02357 , G02B6/032 , G02B6/0365
摘要： An optical fiber having a length can include a core and at least one cladding disposed about the core, where the one cladding can comprise at least first volumetric regions having a first refractive index n1 and second volumetric regions having a second refractive index n2, different from n1, and the first and second volumetric regions in any cross-section taken through the fiber can be randomly intermingled with one another, where the random intermingling of the first and second volumetric regions changes with changes in the location of the cross-section along the length of the fiber.
摘要翻译： 具有长度的光纤可以包括芯和围绕芯设置的至少一个包层，其中一个包层可以包括具有第一折射率n 1的第一体积区域和具有第一体积区域的第二体积区域， 与n 1不同的第二折射率n 2，以及通过光纤的任何横截面中的第一和第二体积区域可以彼此随机地混合， 其中第一和第二体积区域的随机混合随着沿着纤维长度的横截面位置的变化而改变。
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7.发明授权Optical fiber with suppressed stimulated Brillouin scattering and method for making such a fiber 有权抑制受激布里渊散射的光纤和制造这种光纤的方法公开(公告)号：US07167621B2
公开(公告)日：2007-01-23
申请号：US10981437
申请日：2004-11-03
CPC分类号： G02B6/02 , C03B37/02718 , C03B37/02727 , C03B37/02745 , C03B2203/18 , C03B2203/19 , C03B2205/06 , C03B2205/20 , C03B2205/56 , G02B6/02052
摘要： An optical fiber for the transmission of electromagnetic energy, where the fiber can have increased input power threshold for the onset of Stimulated Brillouin Scattering (SBS). The fiber can comprise a core and a cladding disposed about the core. The core can have a distribution of velocities for an acoustic wave associated with SBS, where the distribution of propagation velocities of the core for the acoustic wave is at least one of a) azimuthally asymmetric or b) non-constant in an azimuthal plane and longitudinally asymmetric. The fiber can be longitudinally asymmetric wherein the core includes a first portion having a propagation velocity for the acoustic wave that is substantially the same throughout interposed between longitudinally spaced portions each having a propagation velocity different than that of said first portion. Methods, such as, for example, methods for fabricating and/or using a fiber having an increased threshold input power for the onset of SBS, are also disclosed.
摘要翻译： 用于传输电磁能的光纤，其中光纤可以具有增加的刺激布里渊散射（SBS）开始的输入功率阈值。 纤维可以包括围绕芯部设置的芯和包层。 核心可以具有与SBS相关联的声波的速度分布，其中用于声波的芯的传播速度的分布是以下中的至少一个：方位角平面中的方位角不对称或b）非常数和纵向 不对称。 纤维可以是纵向不对称的，其中芯包括具有声波的传播速度的第一部分，该第一部分在插入纵向间隔的部分之间基本上相同，每个部分的传播速度不同于所述第一部分的传播速度。 还公开了诸如用于制造和/或使用具有增加的用于SBS开始的阈值输入功率的光纤的方法。
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公开(公告)号：US07634164B2
公开(公告)日：2009-12-15
申请号：US11419907
申请日：2006-05-23
IPC分类号： G02B6/02
CPC分类号： G02B6/024
摘要： A fiber optic article can comprise a core, an inner region disposed about the core and a cladding disposed about the inner region. The index of refraction of the cladding can be less than that of the inner region, and the index of refraction of the inner region can be less than that of the core. The fiber can include a second cladding disposed about the cladding, where the second cladding has an index of refraction that is less than the index of refraction of the cladding. The inner region can have a non circular outer perimeter that includes at least one inwardly oriented section. The article can be elongate along a longitudinal axis and can include at least one longitudinally extending region, such as a stress inducing region, for providing birefringence and the inwardly oriented region can face the longitudinally extending region. The fiber optic article can include active material for providing light responsive to the article receiving pump light, such as, for example, one or more rare earths. The rare earths can include erbium and ytterbium.
摘要翻译： 光纤制品可以包括芯，围绕芯设置的内部区域和围绕内部区域设置的包层。 包层的折射率可以小于内部区域的折射率，并且内部区域的折射率可以小于芯部的折射率。 纤维可以包括围绕包层设置的第二包层，其中第二包层的折射率小于包层的折射率。 内部区域可以具有包括至少一个向内定向的部分的非圆形外周边。 该制品可以沿纵向轴线延伸并且可以包括至少一个纵向延伸区域，例如应力诱导区域，用于提供双折射，并且向内取向区域可面向纵向延伸区域。 光纤制品可以包括用于提供响应于物品接收泵浦光的光的活性材料，例如一个或多个稀土。 稀土可以包括铒和镱。
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公开(公告)号：US07110647B2
公开(公告)日：2006-09-19
申请号：US10910924
申请日：2004-08-03
IPC分类号： G02B6/024
CPC分类号： C03B37/01217 , C03B2201/34 , C03B2203/23 , C03B2203/302 , C03B2203/31 , G02B6/024 , G02B6/03622 , G02B6/03694 , Y02P40/57
摘要： A polarization maintaining optical fiber has a core extending along a longitudinal axis, where the core includes a rare earth and a first index of refraction. A cladding is disposed about the core and has a first thermal coefficient of expansion (TCE) and a second index of refraction that is less than the first index of refraction. The fiber can include a pair of longitudinally extending members, and each of the members can have a TCE that is different than the first TCE of the cladding. The pair can be spaced apart by a distance di. A second cladding can be disposed about the first cladding, and the second cladding can have a third index of refraction that is less than the second index of refraction. The fiber can have a fundamental mode having a mode field diameter (MFD). The core can be a multimode core having a diameter dc that is greater than or equal to 15 microns, the numerical aperture of the core relative to the first cladding can be less than or equal to 0.12, the ratio di/MFD can be greater than 3, and the fiber can provide a beat length of less than 3 mm, where the beat length is measured at a wavelength of 633 nm.
摘要翻译： 偏振保持光纤具有沿纵轴延伸的芯，其中芯包括稀土和第一折射率。 包层设置在芯周围，并且具有小于第一折射率的第一热膨胀系数（TCE）和第二折射率。 纤维可以包括一对纵向延伸的构件，并且每个构件可以具有与包层的第一TCE不同的TCE。 该对可以间隔一段距离d i。 可以围绕第一包层设置第二包层，并且第二包层可以具有小于第二折射率的第三折射率。 光纤可以具有模场直径（MFD）的基模。 芯可以是直径大于或等于15微米的多模芯，芯相对于第一包层的数值孔径可以小于或等于0.12， 比率d可以大于3，并且纤维可以提供小于3mm的拍子长度，其中在633nm的波长处测量拍子长度。
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公开(公告)号：US07062137B2
公开(公告)日：2006-06-13
申请号：US10912666
申请日：2004-08-05
CPC分类号： G02B6/105 , G02B6/02009 , G02B6/02033 , G02B6/024 , G02B6/03638 , G02B6/03661 , G02B6/03688 , G02B6/03694 , H01S3/06729 , H01S3/094007
摘要： A fiber optic article, such as an optical fiber or an optical preform, can include a core comprising a concentration of erbium, a concentration of fluorine and a concentration of ytterbium for sensitizing the erbium by absorbing pump light and transferring energy to the erbium. The erbium can provide light having a second wavelength different than the wavelength of the pump light. The article can also include a concentration of phosphorus. The fiber optic article can include a cladding disposed about the core, where the cladding has an index of refraction that is less than the index of refraction of the core, and a second cladding disposed about the first cladding, where the second cladding includes an index of refraction than is less than the index of refraction of the cladding. The fiber optic article can be elongate along a longitudinal axis and can include a longitudinally extending region for providing birefringence.
摘要翻译： 诸如光纤或光学预型件之类的光纤制品可以包括铒的浓度，氟浓度和镱的浓度，用于通过吸收泵浦光并将能量转移到铒来使铒增感。 铒可以提供具有与泵浦光的波长不同的第二波长的光。 该物品还可以包括磷的浓度。 光纤制品可以包括围绕芯设置的包层，其中包层的折射率小于芯的折射率，以及围绕第一包层设置的第二包层，其中第二包层包括指数 的折射率小于包层的折射率。 光纤制品可以沿着纵向轴线延伸并且可以包括用于提供双折射的纵向延伸区域。
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