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31. 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。

32. 发明申请

US20060133751A1 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：US20060133751A1
公开(公告)日：2006-06-22
申请号：US11015509
申请日：2004-12-16
申请人： Xin Chen , Ming-Jun Li , Nicol Heron , Jeanne Swecker , Naiyue Zhou
发明人： Xin Chen , Ming-Jun Li , Nicol Heron , Jeanne 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。

33. 发明授权

US06876804B2 Method of making a spun optical fiber with low polarization mode dispersion 有权
标题翻译：制造具有低偏振模色散的纺丝光纤的方法
公开(公告)号：US06876804B2
公开(公告)日：2005-04-05
申请号：US10392652
申请日：2003-03-20
申请人： Xin Chen , Ming-Jun Li , Jesse C. Meyer , Oscar Palmer
发明人： Xin Chen , Ming-Jun Li , Jesse C. Meyer , Oscar Palmer
IPC分类号： C03B37/027 , C03B37/03 , C03B37/02 , C03B37/022 , C03B37/075
CPC分类号： G02B6/02285 , C03B37/02745 , C03B37/032 , C03B2203/19 , C03B2203/20 , C03B2203/36 , C03B2205/06
摘要： An optical fiber, and a method of making such optical fiber, wherein the optical fiber exhibits a beatlength greater than about 5 meters, and the fiber is spun to provide a polarization mode dispersion in the spun state of said fiber which is less than 0.05 ps/km1/2. The fiber is spun by employing a spin having a spin repeat distance of at least 10 meters. The spin preferably alternates between clockwise and counterclockwise directions.
摘要翻译：一种光纤，以及制造这种光纤的方法，其中光纤表现出大于约5米的拍子长度，并且纺丝纤维以在所述光纤的纺丝状态下提供小于0.05ps的偏振模色散 / km <1/2>。通过采用具有至少10米的自旋重复距离的纺丝来纺丝纤维。旋转优选地在顺时针和逆时针方向之间交替。

34. 发明授权

US08744782B2 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：US08744782B2
公开(公告)日：2014-06-03
申请号：US12947066
申请日：2010-11-16
申请人： Xin Chen , Ming-Jun Li , Anping Liu , Daniel Aloysius Nolan
发明人： Xin Chen , Ming-Jun Li , Anping Liu , Daniel Aloysius Nolan
IPC分类号： G01L11/02 , G01L11/00 , G01K11/00 , G01K11/20
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。

35. 发明授权

US08000576B2 Double-clad optical fibers and devices with double-clad optical fibers 有权
公开(公告)号：US08000576B2
公开(公告)日：2011-08-16
申请号：US12487753
申请日：2009-06-19
申请人： Xin Chen , Joohyun Koh , Ming-Jun Li
发明人： Xin Chen , Joohyun Koh , Ming-Jun Li
IPC分类号： G02B6/02
CPC分类号： G02B6/02276 , G02B6/02028 , G02B6/02214 , G02B6/02342 , G02B6/02347 , G02B6/02357 , G02B6/02366 , G02B6/03633
摘要： A double-clad optical fiber includes a core, an inner cladding and an outer cladding of silica-based glass. The core may have a radius of less than about 5 μm, a first index of refraction n1 and does not contain any active rare-earth dopants. The inner cladding may surround the core and includes a radial thickness of at least about 25 μm, a numerical aperture of at least about 0.25, and a second index of refraction n2 such that n2

36. 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。

37. 发明申请

US20100021114A1 Double-Clad Optical Fibers And Devices With Double-Clad Optical Fibers 有权
标题翻译：双包层光纤和双包层光纤的设备
公开(公告)号：US20100021114A1
公开(公告)日：2010-01-28
申请号：US12487753
申请日：2009-06-19
申请人： Xin Chen , Joohyun Koh , Ming-Jun Li
发明人： Xin Chen , Joohyun Koh , Ming-Jun Li
IPC分类号： G02B6/06 , G02B6/036
CPC分类号： G02B6/02276 , G02B6/02028 , G02B6/02214 , G02B6/02342 , G02B6/02347 , G02B6/02357 , G02B6/02366 , G02B6/03633
摘要： A double-clad optical fiber includes a core, an inner cladding and an outer cladding of silica-based glass. The core may have a radius of less than about 5 μm, a first index of refraction n1 and does not contain any active rare-earth dopants. The inner cladding may surround the core and includes a radial thickness of at least about 25 μm, a numerical aperture of at least about 0.25, and a second index of refraction n2 such that n2
摘要翻译：双包层光纤包括芯，内包层和二氧化硅基玻璃的外包层。芯可以具有小于约5μm的半径，第一折射率n1并且不包含任何活性稀土掺杂剂。内包层可以围绕芯部并且包括至少约25μm的径向厚度，至少约0.25的数值孔径和第二折射率n2，使得n2

38. 发明申请

US20080304800A1 Optical fiber with large effective area 失效
标题翻译：光纤有效面积大
公开(公告)号：US20080304800A1
公开(公告)日：2008-12-11
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
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。

39. 发明申请

US20080279517A1 Large effective area fiber 有权
标题翻译：大面积纤维有效面积
公开(公告)号：US20080279517A1
公开(公告)日：2008-11-13
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： G02B6/028
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R 1的玻璃芯，其中R 1>大于5μm; 围绕并与芯接触的玻璃包层，所述包层包括：（i）从半径R 1> 1半径R 2> 2延伸的第一环形区域，第一包括径向宽度的第二环形区域，（ii）从半径R < SUB> 2 到半径R 3 3，并且包括径向宽度，W 3 3 = R 3→N < 2，和（iii）围绕第二环形区域并从半径R 3 3延伸到最外侧玻璃半径R 4的第三环形区域; 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，Δ1MAX1，并且其中Δ1MAX1大于约0.1％且小于约0.3％ ; 第一环形区域具有小于约0.025％的折射率差ΔΔ2（r）; 其中所述第二环形区域包括相对于所述第三环形区域的最小相对折射率，Δ3 NIN; 其中Delta 1MAX 增量2MAX 三角洲3MIN和三角洲2MIN 三角洲3IN > <0; 并且其中所述芯和所述包层提供具有小于1500nm的电缆截止的光纤，并且在1550nm处的有效面积大于95μm2，并且在20℃下的弯曲损耗为<= 0.5dB / mm直径心轴。

40. 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。

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