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21. 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。

22. 发明申请

US20090219516A1 Fiber Optic Sensing System, Method of Using Such and Sensor Fiber 有权
标题翻译：光纤传感系统，使用传感器光纤的方法
公开(公告)号：US20090219516A1
公开(公告)日：2009-09-03
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： G01N21/00 , G02B6/00
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。

23. 发明授权

US07555187B2 Large effective area fiber 有权
标题翻译：大面积纤维有效面积
公开(公告)号：US07555187B2
公开(公告)日：2009-06-30
申请号：US12151171
申请日：2008-05-05
申请人： Scott Robertson Bickham , Dana Craig Bookbinder , Xin Chen , Ming-Jun Li , Snigdharaj Kumar Mishra , Daniel Aloysius Nolan
发明人： Scott Robertson Bickham , Dana Craig Bookbinder , Xin Chen , Ming-Jun Li , Snigdharaj Kumar Mishra , Daniel Aloysius Nolan
IPC分类号： G02B6/036
CPC分类号： G02B6/0365 , G02B6/02019
摘要： An optical fiber according to an embodiment of the present invention comprises: a glass core extending from a centerline to a radius R1 wherein R1 is greater than about 5 μm; a glass cladding surrounding and in contact with the core, the cladding comprising: (i) a first annular region extending from the radius R1 to a radius R2, the first annular region comprising a radial width, W2=R2−R1, (ii) a second annular region extending from the radius R2 to a radius R3, and comprising a radial width, W3=R3−R2, and (iii) a third annular region surrounding the second annular region and extending from the radius R3 to an outermost glass radius R4; wherein the core comprises a maximum relative refractive index, Δ1MAX, relative to the third annular region, and wherein Δ1MAX is greater than about 0.1% and less than about 0.3%; the first annular region has a refractive index delta Δ2(r) is less than about 0.025%; wherein the second annular region comprises a minimum relative refractive index, Δ3MIN, relative to the third annular region;wherein Δ1MAX>Δ2MAX>Δ3MIN, and Δ2MIN>Δ3MIN
摘要翻译：根据本发明实施例的光纤包括：从中心线延伸到半径R1的玻璃芯，其中R1大于约5μm; 所述包层包括：（i）从所述半径R1延伸到半径R2的第一环形区域，所述第一环形区域包括径向宽度，W2 = R2-R1，（ii）从半径R2延伸到半径R3并且包括径向宽度W3 = R3-R2的第二环形区域，以及（iii）围绕第二环形区域并且从半径R3延伸到最外侧玻璃半径的第三环形区域 R4; 其中所述芯包括相对于所述第三环形区域的最大相对折射率Delta1MAX，并且其中Δ1MAX大于约0.1％且小于约0.3％; 第一环形区域的折射率差Δ2（r）小于约0.025％; 其中所述第二环形区域相对于所述第三环形区域包括最小相对折射率Delta3MIN; 其中Delta1MAX> Delta2MAX> Delta3MIN和Delta2MIN> Delta3MIN <0; 并且其中芯和包层提供具有小于1500nm的电缆截止的光纤，并且在1550nm处的有效面积大于95mum2，并且在20mm直径的心轴上的弯曲损耗为<= 0.5dB /匝。

24. 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。

25. 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

26. 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。

27. 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。

28. 发明授权

US07603015B2 Optical fiber with large effective area 失效
标题翻译：光纤有效面积大
公开(公告)号：US07603015B2
公开(公告)日：2009-10-13
申请号：US12070845
申请日：2008-02-21
申请人： Scott Robertson Bickham , Dana Craig Bookbinder , Xin Chen , Ming-Jun Li , Snigdharaj Kumar Mishra , Daniel Aloysius Nolan , Pushkar Tandon
发明人： Scott Robertson Bickham , Dana Craig Bookbinder , Xin Chen , Ming-Jun Li , Snigdharaj Kumar Mishra , Daniel Aloysius Nolan , Pushkar Tandon
IPC分类号： G02B6/02 , G02B6/36
CPC分类号： G02B6/02014 , G02B6/02019 , G02B6/02357 , G02B6/02366 , G02B6/0365 , G02B6/03661 , G02B6/03688
摘要： An optical fiber comprising: a glass core extending from a centerline to a radius R1; a glass cladding surrounding and in contact with the core, the cladding comprising: a first annular region extending from R1 to a radius R2, the first annular region comprising a radial width, W2=R2−R1, a second annular region extending from R2 to a radius R3, the second annular region comprising a radial width, W3=R3−R2, and a third annular region extending from R3 to an outermost glass radius R4; wherein (i) the core comprises a maximum relative refractive index, Δ1MAX, relative to the third annular region; (ii) wherein the first annular region comprises a radial width W2; and (iii) the second annular region comprises a minimum relative refractive index, Δ3MIN, relative to the third annular region wherein Δ1MAX>Δ2MAX>Δ3MIN, and Δ2MIN>Δ3MIN; and the core and the cladding provide a fiber with cable cutoff less than 1500 nm, dispersion at 1550 nm less than 12 ps/nm/km, effective area at 1550 nm greater than 60 μm2, and preferably greater than 70 μm2. The second annular cladding region may contain a plurality of randomly dispersed holes.
摘要翻译：一种光纤，包括：从中心线延伸到半径R1的玻璃芯; 围绕并与芯接触的玻璃包层，所述包层包括：从R1延伸到半径R2的第一环形区域，所述第一环形区域包括径向宽度W2 = R2-R1，从R2延伸到第二环形区域半径R3，第二环形区域包括径向宽度，W3 = R3-R2，以及从R3延伸到最外侧玻璃半径R4的第三环状区域; 其中（i）所述芯包括相对于所述第三环形区域的最大相对折射率Delta1MAX; （ii）其中所述第一环形区域包括径向宽度W2; 和（iii）第二环形区域包括相对于第三环形区域的最小相对折射率Delta3MIN，其中Delta1MAX> Delta2MAX> Delta3MIN和Delta2MIN> Delta3MIN; 并且芯和包层提供具有小于1500nm的电缆截止的光纤，在1550nm处的色散小于12ps / nm / km，在1550nm处的有效面积大于60mum2，优选大于70mum2。第二环形包层区域可以包含多个随机分布的孔。

29. 发明申请

US20090080843A1 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：US20090080843A1
公开(公告)日：2009-03-26
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： G02B6/02
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构件包括与F共掺的二氧化硅和选自GeO2，P2O5，Y2O3，TiO2和Al2O3中的至少一种掺杂剂，其中应力构件和核心中心之间的距离b满足以下等式：1 <= b / a <2。

30. 发明授权

US08768131B2 Multimode fiber with at least dual cladding 有权
标题翻译：具有至少双包层的多模光纤
公开(公告)号：US08768131B2
公开(公告)日：2014-07-01
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 , G02B6/036
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。

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