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11. 发明授权

US07177512B2 Solid type polarization maintaining fiber and apparatus 失效
标题翻译：固体型保偏纤维及其设备
公开(公告)号：US07177512B2
公开(公告)日：2007-02-13
申请号：US11239788
申请日：2005-09-29
申请人： George Edward Berkey , Xin Chen , Joohyun Koh , Ming-Jun Li , Daniel Aloysius Nolan
发明人： George Edward Berkey , Xin Chen , Joohyun Koh , Ming-Jun Li , Daniel Aloysius Nolan
IPC分类号： G02B6/024
CPC分类号： G02B6/03627 , G02B6/024 , G02B6/0281 , G02B6/03694
摘要： Disclosed is an optical fiber (20) having a centermost laterally-elongated core (30) having a short dimension (a), a long dimension (b) and a first refractive index (n1), a moat (40) surrounding the central laterally-elongated core, the moat (40) having a second refractive index (n2), an outer dimension (c) and an outer dimension (d), and a cladding (50) surrounding the moat (40), the cladding (50) having a third refractive index (n3), wherein n1>n3>n2, a ratio of b/a is between 1.5 and 5.0, and a ratio of d/a is between 2.0 and 7.0. The fiber exhibits polarization maintaining properties in a PMB situated below (i.e., at shorter wavelength than SPB), such that beat length normalized to 1550 nm wavelength is preferably less than 10 mm. The fiber (20) may be coupled to optical components in apparatus where single polarization or polarization maintaining properties are desired.
摘要翻译：公开了一种光纤（20），其具有具有短尺寸（a），长尺寸（b）和第一折射率（n <1> 1）的中心横向细长芯部（30），围绕中央横向细长的芯的护城河（40），护城河（40）具有第二折射率（n 2/2），外部尺寸（c）和外部尺寸（d），以及围绕护城河（40）的包层（50），包层（50）具有第三折射率（n 3/3），其中n 1 n 3 < / SUB >> n 2，b / a的比例在1.5和5.0之间，d / a的比率在2.0和7.0之间。纤维在位于低于（即在比SPB更短的波长）的PMB中表现出极化保持性能，使得标准化为1550nm波长的拍子长度优选小于10mm。光纤（20）可以耦合到需要单极化或偏振保持特性的装置中的光学部件。

12. 发明授权

US07382957B2 Rare earth doped double clad optical fiber with plurality of air holes and stress rods 有权
标题翻译：具有多个气孔和应力棒的稀土掺杂双包层光纤
公开(公告)号：US07382957B2
公开(公告)日：2008-06-03
申请号：US11483229
申请日：2006-07-07
申请人： Xin Chen , Ji Wang , Joohyun Koh , Ming-Jun Li , Daniel Aloysius Nolan , Donnell Thaddeus Walton , Luis Alberto Zenteno
发明人： Xin Chen , Ji Wang , Joohyun Koh , Ming-Jun Li , Daniel Aloysius Nolan , Donnell Thaddeus Walton , Luis Alberto Zenteno
IPC分类号： G02B6/02 , G02B6/00
CPC分类号： G02B6/024 , C03B37/01217 , C03B37/01413 , C03B2201/12 , C03B2201/31 , C03B2201/36 , C03B2201/50 , C03B2203/12 , C03B2203/14 , C03B2203/22 , C03B2203/31 , C03B2205/10 , C03B2207/90 , G02B6/105 , H01S3/06712 , H01S3/06729 , H01S3/094007
摘要： An optical fiber including: (i) a silica based, rare earth doped core having a first index of refraction n1; and (ii) at least one silica based cladding surrounding the core and having a second index of refraction n2, such that n1>n2, said cladding having a plurality of stress rods and a plurality of air holes extending longitudinally through the length of said optical fiber; wherein said optical fiber supports a single polarization mode or poses-polarization maintaining properties within the operating wavelength range.
摘要翻译：一种光纤，包括：（i）具有第一折射率n 1的二氧化硅基稀土掺杂的芯; 和（ii）至少一个二氧化硅基包层，其围绕所述芯并且具有第二折射率n 2 2，使得n 1/2 2

13. 发明授权

US07203407B2 Rare earth doped single polarization double clad optical fiber and a method for making such fiber 有权
标题翻译：稀土掺杂单极化双包层光纤及其制造方法
公开(公告)号：US07203407B2
公开(公告)日：2007-04-10
申请号：US11058309
申请日：2005-02-14
申请人： George Edward Berkey , Xin Chen , Joohyun Koh , Ming-Jun Li , Daniel Aloysius Nolan , Donnell Thaddeus Walton , Ji Wang , Luis Alberto Zenteno
发明人： George Edward Berkey , Xin Chen , Joohyun Koh , Ming-Jun Li , Daniel Aloysius Nolan , Donnell Thaddeus Walton , Ji Wang , Luis Alberto Zenteno
IPC分类号： G02B6/032 , G02B6/036
CPC分类号： G02B6/03666 , C03B37/01234 , C03B37/01245 , C03B37/01413 , C03B37/01446 , C03B2201/12 , C03B2201/14 , C03B2201/28 , C03B2201/31 , C03B2201/36 , C03B2203/12 , C03B2203/23 , C03B2207/90 , G02B6/023 , G02B6/024 , G02B6/03611 , G02B6/03661 , H01S3/06716 , H01S3/0672 , H01S3/06729 , H01S3/1618 , H01S3/1695
摘要： An optical fiber, comprising: (i) a rare earth doped silica based elongated core with a first refractive index (n1) with an aspect ratio of 1:5 to 1; (ii) a silica based moat abutting and at least substantially surrounding the core, the moat having a refractive index n2, wherein n2 n3; and n3>n2; (iv) a silica based outer cladding surrounding said inner cladding, the outer cladding having a fourth refractive index (n4), such that n4
摘要翻译：一种光纤，包括：（i）具有长宽比为1:5至1的第一折射率（n <1> 1）的稀土掺杂二氧化硅基细长芯; （ii）邻接并且至少基本上围绕所述芯的基于二氧化硅的护城河，所述护城河具有折射率n 2 N 2，其中n 2 ; （iii）围绕所述护城河的基于二氧化硅的内包层，所述内包层具有第三折射率（n 3/3），其中n 1 <3> n 3 < SUB>; 和n 3 3 n 2; （iv）围绕所述内包层的基于二氧化硅的外包层，所述外包层具有第四折射率（n≥4），使得n 4 光纤在工作波长带表现出单极化。

14. 发明申请

US20100086271A1 Ultra Low PMD Fibers and Method of Making 失效
标题翻译：超低PMD纤维和制造方法
公开(公告)号：US20100086271A1
公开(公告)日：2010-04-08
申请号：US12565153
申请日：2009-09-23
申请人： Xin Chen , Timothy Leonard Hunt , Joohyun Koh , Ming-Jun Li , Daniel Aloysius Nolan
发明人： Xin Chen , Timothy Leonard Hunt , Joohyun Koh , Ming-Jun Li , Daniel Aloysius Nolan
IPC分类号： G02B6/02 , B29D11/00
CPC分类号： B29D11/00682 , C03B37/01225 , C03B37/01228 , C03B37/02745 , C03B2203/14 , C03B2203/36 , G02B6/02285
摘要： A method for making low PMD fiber comprising the steps of: (i) making an initial fiber preform; (ii) modifying said initial fiber preform to introduce higher birefringence than that of the initial fiber preform into modified preform; and (iii) drawing an optical fiber from the modified preform and bi-directionally spinning the drawn fiber during draw.
摘要翻译：一种制备低PMD纤维的方法，包括以下步骤：（i）制备初始纤维预制棒; （ii）修改所述初始纤维预制件以将比起初始纤维预制件的双折射率更高的双折射率改造成改进的预制件; 和（iii）从改性预成型件拉制光纤并在拉伸过程中双向纺丝拉伸纤维。

15. 发明授权

US07412142B2 Optical fiber with plurality of air holes and stress rods 有权
标题翻译：具有多个气孔和应力棒的光纤
公开(公告)号：US07412142B2
公开(公告)日：2008-08-12
申请号：US11437897
申请日：2006-05-19
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： G02B6/00 , G02B6/02 , G02B6/028 , G02B6/32 , G02B6/36
CPC分类号： C03B37/014 , C03B37/01217 , C03B2201/10 , C03B2201/28 , C03B2201/31 , C03B2203/14 , C03B2203/302 , C03B2203/31 , G02B6/02333 , G02B6/02366 , G02B6/024
摘要： An optical fiber comprising: (i) a silica based passive core having a first index of refraction n1; (ii) a silica based cladding surrounding the core and having a second index of refraction n2, such that n1>n2, said cladding having at least one stress rod and at least one air hole extending longitudinally through the length of said optical fiber; and (iii) wherein said optical fiber supports a single polarization mode or poses polarization maintaining properties within the operating wavelength range.
摘要翻译：一种光纤，包括：（i）具有第一折射率n 1的二氧化硅基无源芯; （ii）围绕所述芯并且具有第二折射率n 2 2的二氧化硅基包层，使得所述第二折射率n 2 2 < 包层具有至少一个应力杆和沿所述光纤的长度纵向延伸的至少一个气孔; 和（iii）其中所述光纤支持单一偏振模式或在工作波长范围内产生偏振维持特性。

16. 发明授权

US08111957B2 +cylindrical polarization beams 有权
标题翻译： +圆柱偏振光束
公开(公告)号：US08111957B2
公开(公告)日：2012-02-07
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 , G01N21/00
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。

17. 发明授权

US07424194B2 Single polarization fiber and method of evaluating fiber cutoff wavelengths using optical time domain reflectometry 失效
标题翻译：单极化光纤和使用光时域反射测量法评估光纤截止波长的方法
公开(公告)号：US07424194B2
公开(公告)日：2008-09-09
申请号：US11331905
申请日：2006-01-13
申请人： Xin Chen , Alan Frank Evans , Joohyun Koh , Ming-Jun Li , Daniel Aloysius Nolan
发明人： Xin Chen , Alan Frank Evans , Joohyun Koh , Ming-Jun Li , Daniel Aloysius Nolan
IPC分类号： G02B6/02
CPC分类号： C03B37/07 , C03B37/0124 , C03B2203/14 , G01M11/3181 , Y02P40/57
摘要： A method for measuring fundamental mode cutoff wavelength of single polarization fiber comprising: (i) launching pulsed light of at least one wavelength λi into one end of the single polarization fiber; (ii) measuring backscattered light intensity corresponding to said wavelength to obtain the backscattered light intensity as a function of fiber position, wherein the backscattered light propagates through the same end of the fiber; and (iii) determining at least one cutoff wavelength and the corresponding position within said fiber for the cutoff wavelength, based on a specified threshold light intensity level.
摘要翻译：一种用于测量单极化光纤的基模截止波长的方法，包括：（i）将至少一个波长λλ的脉冲光发射到单极化光纤的一端; （ii）测量对应于所述波长的反向散射光强度以获得作为光纤位置的函数的背向散射光强度，其中所述反向散射光通过所述光纤的同一端传播; 以及（iii）基于指定的阈值光强度水平确定所述光纤中的至少一个截止波长和所述光纤中的对应位置作为所述截止波长。

18. 发明授权

US07200309B2 Single polarization and polarization maintaining optical fibers and system utilizing same 失效
标题翻译：单极化和偏振保持光纤及其系统
公开(公告)号：US07200309B2
公开(公告)日：2007-04-03
申请号：US11288870
申请日：2005-11-28
申请人： George Edward Berkey , Xin Chen , Ming-Jun Li , Daniel Aloysius Nolan , William Allen Wood , Joohyun Koh
发明人： George Edward Berkey , Xin Chen , Ming-Jun Li , Daniel Aloysius Nolan , William Allen Wood , Joohyun Koh
IPC分类号： G02B6/02 , G02B6/36
CPC分类号： G02B6/03627 , C03B37/01217 , C03B37/01234 , C03B37/02781 , C03B2203/30 , C03B2203/302 , C03B2205/10 , G02B6/024 , G02B6/0281
摘要： An optical fiber, comprising: a central core having a maximum dimension (A) greater than a minimum dimension (B) and a substantially elliptical shape, the fiber having at least one air hole positioned each opposite side of the central core wherein the optical fiber exhibits (i) single polarization propagation within a single polarization band and (ii) polarization maintaining property, such that the fiber beat length normalized at 1550 nm is less than 10 mm; and the polarization maintaining band is situated within wavelengths which are (a) adjacent to and below the single polarization band; and (b) above the higher order mode cutoff wavelength.
摘要翻译：一种光纤，包括

19. 发明授权

US08233760B2 Ultra low PMD fibers and method of making 失效
标题翻译：超低PMD纤维及其制造方法
公开(公告)号：US08233760B2
公开(公告)日：2012-07-31
申请号：US12565153
申请日：2009-09-23
申请人： Xin Chen , Timothy Leonard Hunt , Joohyun Koh , Ming-Jun Li , Daniel Aloysius Nolan
发明人： Xin Chen , Timothy Leonard Hunt , Joohyun Koh , Ming-Jun Li , Daniel Aloysius Nolan
IPC分类号： G02B6/032 , C03B37/023
CPC分类号： B29D11/00682 , C03B37/01225 , C03B37/01228 , C03B37/02745 , C03B2203/14 , C03B2203/36 , G02B6/02285
摘要： A method for making low PMD fiber comprising the steps of: (i) making an initial fiber preform; (ii) modifying said initial fiber preform to introduce higher birefringence than that of the initial fiber preform into modified preform; and (iii) drawing an optical fiber from the modified preform and bi-directionally spinning the drawn fiber during draw.
摘要翻译：一种制备低PMD纤维的方法，包括以下步骤：（i）制备初始纤维预制棒; （ii）修改所述初始纤维预制件以将比起初始纤维预制件的双折射率更高的双折射率改造成改进的预制件; 和（iii）从改性预成型件拉制光纤并在拉伸过程中双向纺丝拉伸纤维。

20. 发明授权

US07999930B2 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：US07999930B2
公开(公告)日：2011-08-16
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： G01N21/00
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。

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