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    Large Mode Area Optical Fiber
    42.
    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

    Applicant: Xin Chen ,  Joohyun Koh ,  Ming-Jun Li ,  Anping Liu

    Inventor： Xin Chen ,  Joohyun Koh ,  Ming-Jun Li ,  Anping Liu

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

    CPC classification number: G02B6/14 ,  G02B6/024 ,  G02B6/03644 ,  G02B6/03661 ,  G02B6/03688 ,  H01S3/06708 ,  H01S3/06712 ,  H01S3/06729 ,  H01S3/08045 ,  H01S3/094007

    Abstract: 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.

    Abstract translation: 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。

    Polarization maintaining and single polarization optical fiber
    45.
    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

    Applicant: Dana Craig Bookbinder ,  Xin Chen ,  Joohyun Koh ,  Ming-Jun Li ,  Daniel Aloysius Nolan

    Inventor： Dana Craig Bookbinder ,  Xin Chen ,  Joohyun Koh ,  Ming-Jun Li ,  Daniel Aloysius Nolan

    IPC: G02B6/032

    CPC classification number: G02B6/024

    Abstract: 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

    Abstract translation: 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
    46.
    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

    Applicant: Xin Chen ,  Joohyun Koh ,  Ming-Jun Li ,  Daniel Aloysius Nolan

    Inventor： Xin Chen ,  Joohyun Koh ,  Ming-Jun Li ,  Daniel Aloysius Nolan

    IPC: G01N21/47

    CPC classification number: G01L1/242 ,  C03B2203/19 ,  C03B2203/30 ,  C03B2205/06 ,  G01M11/3181 ,  G02B6/02

    Abstract: 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.

    Abstract translation: 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。

    Melanocortin Receptor-Specific Peptides for Treatment of Obesity / 669
    49.
    发明申请
    Melanocortin Receptor-Specific Peptides for Treatment of Obesity / 669 审中-公开
    黑皮质素受体特异性肽用于治疗肥胖/ 669

    公开(公告)号：US20090305960A1

    公开(公告)日：2009-12-10

    申请号：US12480420

    申请日：2009-06-08

    Applicant: Xin Chen ,  Shubh D. Sharma ,  Yi-Qun Shi ,  Wei Yang

    Inventor： Xin Chen ,  Shubh D. Sharma ,  Yi-Qun Shi ,  Wei Yang

    IPC: A61K38/12 ,  C07K7/64 ,  A61P3/00

    CPC classification number: C07K7/54 ,  A61K38/00 ,  C07K7/06

    Abstract: Melanocortin receptor-specific cyclic peptides of the formula where R1, R2, R3, R4, x and y are as defined in the specification, compositions and formulations including the peptides of the foregoing formula, and methods of preventing, ameliorating or treating melanocortin receptor-mediated diseases, indications, conditions and syndromes, including obesity, diabetes, modulation of feeding behavior and related metabolic syndrome.

    Abstract translation: 其中R1，R2，R3，R4，x和y如说明书中所定义的组合物和制剂，包括上述式的肽的黑皮质素受体特异性环肽，以及预防，改善或治疗黑皮质素受体 - 介导的疾病，适应症，病症和综合症，包括肥胖症，糖尿病，调节摄食行为和相关的代谢综合征。

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