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    Optical fiber and a method of making
    1.
    发明授权
    Optical fiber and a method of making 有权
    光纤及其制作方法

    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

    IPC分类号： G02B6/00 ,  G02B6/02

    CPC分类号： G02B6/443 ,  G02B6/02 ,  G02B6/028

    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。

    Low bend loss coated optical fiber
    3.
    发明申请
    Low bend loss coated optical fiber 有权
    低折射损耗涂层光纤

    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％。

    Large Mode Area Optical Fiber
    4.
    发明申请
    Large Mode Area Optical Fiber 有权
    大模光区域光纤

    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

    IPC分类号： H01S3/09 ,  G02B6/14 ,  G02B6/036 ,  H01S3/067 ,  B05D5/06

    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。

    Large mode area optical fiber
    5.
    发明授权
    Large mode area optical fiber 有权
    大模光区域光纤

    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

    IPC分类号： G02B6/036 ,  H04B10/17

    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。

    Low bend loss coated optical fiber
    6.
    发明授权
    Low bend loss coated optical fiber 有权
    低折射损耗涂层光纤

    公开(公告)号：US07539381B2

    公开(公告)日：2009-05-26

    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，所述包层具有折射率nc，第一涂层直接接触所述纤维的包层，所述涂层的厚度小于10微米，所述涂层具有折射率δ％= 100×（ ni2-nc2）/ 2ni2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nc，直接接触所述纤维包层的第一涂层，所述纤维包含小于100微米的玻璃直径，所述涂层的厚度为 至少8微米，所述涂层具有小于-1％的折射率Δ％= 100×（ni2-nc2）/ 2ni2。

    Double-clad optical fibers and devices with double-clad optical fibers
    7.
    发明授权
    Double-clad optical fibers and devices with double-clad optical fibers 有权
    双包层光纤和双包层光纤器件

    公开(公告)号：US07899294B2

    公开(公告)日：2011-03-01

    申请号：US12536679

    申请日：2009-08-06

    申请人： Xin Chen ,  Joohyun Koh ,  Ming-Jun Li

    发明人： Xin Chen ,  Joohyun Koh ,  Ming-Jun Li

    IPC分类号： G02B6/02

    CPC分类号： G02B6/02261 ,  G02B6/02342 ,  G02B6/02357 ,  G02B6/03633

    摘要： A double-clad optical fiber includes a core, an inner cladding and an outer cladding of silica-based glass. The core may have a radius of less than about 5 μm, a first index of refraction n1 and does not contain any active rare-earth dopants. The inner cladding may surround the core and includes a radial thickness of at least about 25 μm, a numerical aperture of at least about 0.25, and a second index of refraction n2 such that n2

    摘要翻译： 双包层光纤包括芯，内包层和二氧化硅基玻璃的外包层。 芯可以具有小于约5μm的半径，第一折射率n1并且不包含任何活性稀土掺杂剂。 内包层可围绕芯部并且包括至少约25μm的径向厚度，至少约0.25的数值孔径和第二折射率n2，使得n2

    Double-Clad Optical Fibers and Devices with Double-Clad Optical Fibers
    8.
    发明申请
    Double-Clad Optical Fibers and Devices with Double-Clad Optical Fibers 有权
    双包层光纤和双包层光纤设备

    公开(公告)号：US20100021118A1

    公开(公告)日：2010-01-28

    申请号：US12536679

    申请日：2009-08-06

    申请人： Xin Chen ,  Joohyun Koh ,  Ming-Jun Li

    发明人： Xin Chen ,  Joohyun Koh ,  Ming-Jun Li

    IPC分类号： G02B6/036 ,  G02B6/028

    CPC分类号： G02B6/02261 ,  G02B6/02342 ,  G02B6/02357 ,  G02B6/03633

    摘要： A double-clad optical fiber includes a core, an inner cladding and an outer cladding of silica-based glass. The core may have a radius of less than about 5 μm, a first index of refraction n1 and does not contain any active rare-earth dopants. The inner cladding may surround the core and includes a radial thickness of at least about 25 μm, a numerical aperture of at least about 0.25, and a second index of refraction n2 such that n2

    摘要翻译： 双包层光纤包括芯，内包层和二氧化硅基玻璃的外包层。 芯可以具有小于约5μm的半径，第一折射率n1并且不包含任何活性稀土掺杂剂。 内包层可以围绕芯部并且包括至少约25μm的径向厚度，至少约0.25的数值孔径和第二折射率n2，使得n2