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21. 发明申请

US20130047676A1 METHOD FOR PRODUCING OPTICAL FIBER HAVING CONTROLLED PERTURBATIONS 有权
标题翻译：用于生产具有控制性刺激的光纤的方法
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。

22. 发明申请

US20120123702A1 System and Method for Simultaneously Determining Strain and Temperature Characteristics of an Object 有权
标题翻译：同时确定物体的应变和温度特性的系统和方法
公开(公告)号：US20120123702A1
公开(公告)日：2012-05-17
申请号：US12947066
申请日：2010-11-16
申请人： Xin Chen , Ming-Jun Li , Anping Li , Daniel Aloysius Nolan
发明人： Xin Chen , Ming-Jun Li , Anping Li , Daniel Aloysius Nolan
IPC分类号： G06F19/00 , G01K13/00 , G01L1/00
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。

23. 发明授权

US07947945B2 Fiber optic sensing system, method of using such and sensor fiber 有权
标题翻译：光纤传感系统，使用这种传感器光纤的方法
公开(公告)号：US07947945B2
公开(公告)日：2011-05-24
申请号：US12393415
申请日：2009-02-26
申请人： Dana Craig Bookbinder , Xin Chen , Ming-Jun Li , Daniel Aloysius Nolan
发明人： Dana Craig Bookbinder , Xin Chen , Ming-Jun Li , Daniel Aloysius Nolan
IPC分类号： G02B6/00 , G01N21/00
CPC分类号： G02B6/02333 , G01D5/35358 , G01L1/242 , G01M11/083 , G02B6/02366 , G02B6/0365
摘要： An embodiment of a sensor fiber includes: at least two fiber sections with a plurality of holes; and at least one other fiber section situated between said at least two fiber sections, wherein the at least one other fiber sections being without the plurality of holes.
摘要翻译：传感器光纤的一个实施例包括：具有多个孔的至少两个光纤部分; 以及位于所述至少两个纤维部分之间的至少一个其它纤维部分，其中所述至少一个其它纤维部分没有多个孔。

24. 发明申请

US20100195194A1 Large Mode Area Optical Fiber 有权
标题翻译：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。

25. 发明申请

US20100142890A1 +Cylindrical Polarization Beams 有权
标题翻译： +圆柱极化梁
公开(公告)号：US20100142890A1
公开(公告)日：2010-06-10
申请号：US12498591
申请日：2009-07-07
申请人： Robert R. Alfano , Xin Chen , Joohyun Koh , Ming-Jun Li , Daniel Aloysius Nolan , Henry Sztul
发明人： Robert R. Alfano , Xin Chen , Joohyun Koh , Ming-Jun Li , Daniel Aloysius Nolan , Henry Sztul
IPC分类号： G02B6/26
CPC分类号： G02B6/024 , C03B2203/10 , C03B2203/19 , C03B2203/32 , C03B2205/06 , G02B6/14
摘要： Generation of a cylindrically polarized light beam, and in particular, a hybrid-azimuthal-radial polarization beams, called HARP modes, generated from an input linearly polarized Gaussian beam using a spun optical waveguide device is taught. The HARP modes are comprised of hybrid-azimuthal polarization (HAP) and hybrid-radial polarization (HRP) superposition modes. These beams possess a non-zero local angular momentum density that is spatially varying and a zero total angular momentum.
摘要翻译：教导了使用旋转光波导装置从输入线性偏振高斯光束产生的圆柱形偏振光束，特别是称为HARP模式的混合方位角 - 径向偏振光束。 HARP模式由混合方位极化（HAP）和混合径向极化（HRP）叠加模式组成。这些光束具有非零局部角动量密度，其空间变化和零总角动量。

26. 发明授权

US07697809B2 Polarization maintaining and single polarization optical fiber 失效
标题翻译：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
申请人： Dana Craig Bookbinder , Xin Chen , Joohyun Koh , Ming-Jun Li , Daniel Aloysius Nolan
发明人： Dana Craig Bookbinder , Xin Chen , Joohyun Koh , Ming-Jun Li , Daniel Aloysius Nolan
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。

27. 发明申请

US20100085558A1 Detection System and Optical Fiber for Use in Such System 有权
标题翻译：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
申请人： Xin Chen , Joohyun Koh , Ming-Jun Li , Daniel Aloysius Nolan
发明人： Xin Chen , Joohyun Koh , Ming-Jun Li , Daniel Aloysius Nolan
IPC分类号： G01N21/47
CPC分类号： G01L1/242 , C03B2203/19 , C03B2203/30 , C03B2205/06 , G01M11/3181 , G02B6/02
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。

28. 发明申请

US20100040336A1 Multimode Fiber With At Least Dual Cladding 有权
标题翻译：多模光纤至少双层包层
公开(公告)号：US20100040336A1
公开(公告)日：2010-02-18
申请号：US12534410
申请日：2009-08-03
申请人： Xin Chen , Ming-Jun Li , Daniel Aloysius Nolan
发明人： Xin Chen , Ming-Jun Li , Daniel Aloysius Nolan
IPC分类号： G02B6/028
CPC分类号： G02B6/03627 , G02B6/02214 , G02B6/0281 , G02B6/0288 , G02B6/03644 , G02B6/03666 , G02B6/03688
摘要： Multimode optical fiber is disclosed herein having a core surrounded by first and second annular cladding regions. The second annular cladding region has a maximum relative refractive index that is at least 0.05% higher than the minimum relative refractive index of the first annular cladding region.
摘要翻译：本文公开的多模光纤具有被第一和第二环形包层区包围的芯。第二环形包层区域具有比第一环形包层区域的最小相对折射率高至少0.05％的最大相对折射率。

29. 发明授权

US07317855B2 Method of imparting twist to optical fiber 失效
标题翻译：赋予光纤扭转的方法
公开(公告)号：US07317855B2
公开(公告)日：2008-01-08
申请号：US11015509
申请日：2004-12-16
申请人： Xin Chen , Ming-Jun Li , Nicol A. Heron , Jeanne L. Swecker , Naiyue Zhou
发明人： Xin Chen , Ming-Jun Li , Nicol A. Heron , Jeanne L. Swecker , Naiyue Zhou
IPC分类号： G02B6/02
CPC分类号： C03B37/02745 , C03B37/032 , C03B37/12 , C03B2203/19 , C03B2203/36 , C03B2205/06 , G02B6/02285 , G02B6/278
摘要： A method for producing low-PMD fiber, in which a glass fiber is drawn from an optical fiber perform by a tractor which pulls such optical fiber from said perform; subsequent to said tractor pulling the fiber is twisted about its axis to increase the magnitude of twist which is imparted to said fiber. The fiber is then wound onto a fiber storage spool such that at least a portion of the twist imparted to said optical fiber is retained while said fiber is wound on said spool.
摘要翻译：一种生产低PMD纤维的方法，其中玻璃纤维从由所述表面拉动这种光纤的拖拉机执行的光纤中拉出; 在所述拖拉机拉动之后，纤维围绕其轴线扭曲以增加赋予所述纤维的捻度的大小。然后将纤维卷绕到纤维储存卷轴上，使得当所述纤维缠绕在所述卷轴上时，赋予所述光纤的扭曲的至少一部分被保持。

30. 发明授权

US07228039B2 High SBS threshold optical fiber with fluorine dopant 失效
标题翻译：具有氟掺杂剂的高SBS阈值光纤
公开(公告)号：US07228039B2
公开(公告)日：2007-06-05
申请号：US11450785
申请日：2006-06-08
申请人： Scott Robertson Bickham , Xin Chen , Ming-Jun Li , Donnell Thaddeus Walton
发明人： Scott Robertson Bickham , Xin Chen , Ming-Jun Li , Donnell Thaddeus Walton
IPC分类号： G02B6/02
CPC分类号： G02B6/0281 , G02B6/02014 , G02B6/02266 , G02B6/03633 , G02B6/03644
摘要： The optical fiber comprises: (a) a core having a refractive index profile and a centerline; and (b) a cladding layer surrounding and directly adjacent the core; wherein core includes updoping material and is doped with F in at least one region of the core, such that either: (a) the average longitudinal acoustic wave velocity within the core is within 0.05% of the longitudinal acoustic wave velocity within the cladding; or (b) the longitudinal acoustic wave velocity at one region of the core is different from the longitudinal velocity at another region of the core by at least 0.2%.
摘要翻译：光纤包括：（a）具有折射率分布和中心线的芯; 和（b）围绕并直接邻近所述芯的包层; 其中芯包括更新材料并且在芯的至少一个区域中掺杂有F，使得：（a）芯内的平均纵向声波速度在包层内的纵向声波速度的0.05％以内; 或（b）芯的一个区域处的纵向声波速度不同于芯的另一区域处的纵向速度至少0.2％。

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