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

    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

    IPC分类号: G02B6/02

    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

    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

    IPC分类号: G02B6/036 H04B10/17

    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

    IPC分类号: G02B6/02

    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。

    Polarization maintaining and single polarization optical fiber
    8.
    发明授权
    Polarization maintaining and single polarization optical fiber 失效
    极化维护和单极化光纤

    公开(公告)号:US07697809B2

    公开(公告)日:2010-04-13

    申请号:US12220268

    申请日:2008-07-23

    IPC分类号: G02B6/032

    CPC分类号: G02B6/024

    摘要: An optical fiber, comprising: (i) a core having a core center and a radius or a width a, (ii) a cladding surrounding the core, and (iii) at least one stress member situated proximate to the fiber core within the cladding, said stress member comprising silica co-doped with F and at least one dopant selected from the list consisting of: GeO2, P2O5, Y2O3, TiO2 and Al2O3, wherein distance b between the stress member and the core center satisfies the following equation: 1≦b/a

    摘要翻译: 1.一种光纤,包括:(i)具有芯中心和半径或宽度a的芯,(ii)围绕所述芯的包层,以及(iii)至少一个应力构件,位于所述包层内的所述纤维芯附近 所述应力部件包括与F共掺杂的二氧化硅和选自GeO2,P2O5,Y2O3,TiO2和Al2O3中的至少一种掺杂剂,其中应力部件与芯心之间的距离b满足以下等式:1&nlE ; b / a <2。

    Detection System and Optical Fiber for Use in Such System
    9.
    发明申请
    Detection System and Optical Fiber for Use in Such System 有权
    用于这种系统的检测系统和光纤

    公开(公告)号:US20100085558A1

    公开(公告)日:2010-04-08

    申请号:US12365417

    申请日:2009-02-04

    IPC分类号: G01N21/47

    摘要: A detection system comprising: (i) an optical fiber, the optical fiber having (a) a length L≧1 km; (b) beat length between 10 m and 100 m; and (c) beat length uniformity over any distance of at least 100 m within the length L is characterized by standard deviation σ, where |σ|≦10 m; (ii) an OTDR coupled to the fiber and including (a) a radiation source providing pulsed radiation to the fiber, (b) a detection system capable of detecting radiation that is backscattered back through the fiber; and (iii) at least one polarizer situated between the fiber and the detector, such that the backscattered radiation passes through the polarizer before reaching the detector.

    摘要翻译: 一种检测系统,包括:(i)光纤,所述光纤具有(a)长度L≥1km; (b)拍摄距离在10米至100米之间; 和(c)在长度L内的至少100米的任何距离上的击穿长度均匀性的特征在于标准偏差&sgr,其中|&sgr | |&nlE; 10m; (ii)耦合到所述光纤的OTDR,并且包括(a)向所述光纤提供脉冲辐射的辐射源,(b)能够检测通过所述光纤反向散射的辐射的检测系统; 和(iii)位于光纤和检测器之间的至少一个偏振器,使得后向散射的辐射在到达检测器之前穿过偏振器。