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41. 发明授权

US07590324B1 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器件
公开(公告)号：US07590324B1
公开(公告)日：2009-09-15
申请号：US12179086
申请日：2008-07-24
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： G02B6/02261 , G02B6/02342 , G02B6/02357 , 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

42. 发明授权

US07539381B2 Low bend loss coated optical fiber 有权
标题翻译：低折射损耗涂层光纤
公开(公告)号：US07539381B2
公开(公告)日：2009-05-26
申请号：US11801896
申请日：2007-05-11
申请人： Xin Chen , Joohyun Koh , Ming-Jun Li , Anping Liu , Jianguo Wang
发明人： Xin Chen , Joohyun Koh , Ming-Jun Li , Anping Liu , Jianguo Wang
IPC分类号： G02B6/02
CPC分类号： C03C25/106 , G02B6/02395 , G02B6/03683
摘要： An optical fiber includes a core and a cladding, said cladding having a refractive index nc a first coating directly contacting the cladding of said fiber, said coating having a thickness of less than 10 microns, said coating having a refractive index delta %=100×(ni2−nc2)/2ni2 less than −1 percent. In another aspect, an optical fiber includes a core and a cladding, said cladding having a refractive index nc, a first coating directly contacting the cladding of said fiber, said fiber comprising a glass diameter less than 100 microns, said coating having a thickness of at least 8 microns, said coating having a refractive index delta %=100×(ni2−nc2)/2ni2 less than −1 percent.
摘要翻译：光纤包括芯和包层，所述包层具有折射率nc，第一涂层直接接触所述纤维的包层，所述涂层的厚度小于10微米，所述涂层具有折射率δ％= 100×（ ni2-nc2）/ 2ni2小于-1％。在另一方面，光纤包括芯和包层，所述包层具有折射率nc，直接接触所述纤维包层的第一涂层，所述纤维包含小于100微米的玻璃直径，所述涂层的厚度为至少8微米，所述涂层具有小于-1％的折射率Δ％= 100×（ni2-nc2）/ 2ni2。

43. 发明申请

US20070177846A1 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：US20070177846A1
公开(公告)日：2007-08-02
申请号：US11483229
申请日：2006-07-07
申请人： Xin Chen , Ji Wang , Joohyun Koh , Ming-Jun Li , Daniel Nolan , Donnell Walton , Luis Zenteno
发明人： Xin Chen , Ji Wang , Joohyun Koh , Ming-Jun Li , Daniel Nolan , Donnell Walton , Luis Zenteno
IPC分类号： G02B6/032 , G02B6/02 , G02B6/036 , 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

44. 发明申请

US20070165978A1 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：US20070165978A1
公开(公告)日：2007-07-19
申请号：US11331905
申请日：2006-01-13
申请人： Xin Chen , Alan Evans , Joohyun Koh , Ming-Jun Li , Daniel Nolan
发明人： Xin Chen , Alan Evans , Joohyun Koh , Ming-Jun Li , Daniel Nolan
IPC分类号： G02B6/00
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。

45. 发明申请

US20130071114A1 FEW MODE OPTICAL FIBERS FOR MODE DIVISION MULTIPLEXING 有权
标题翻译：用于模式分割多路复用的模式光纤
公开(公告)号：US20130071114A1
公开(公告)日：2013-03-21
申请号：US13420037
申请日：2012-03-14
申请人： Scott Robertson Bickham , Ming-Jun Li , Daniel Aloysius Nolan , Ji Wang
发明人： Scott Robertson Bickham , Ming-Jun Li , Daniel Aloysius Nolan , Ji Wang
IPC分类号： G02B6/028 , H04J14/04
CPC分类号： G02B6/0288 , G02B6/02019 , G02B6/02023 , G02B6/03627 , G02B6/0365 , H04J14/04
摘要： A few mode optical fiber suitable for use in a mode division multiplexing (MDM) optical transmission system is disclosed. The optical fiber has a graded-index core with a radius R1 in the range from 8 μm to 14 μm, an alpha value greater than or equal to about 2.3 and less than about 2.7 at a wavelength of 1550 nm, and a maximum relative refractive index Δ1MAX from about 0.3% to about 0.6% relative to the cladding. The optical fiber also has an effective area greater than about 90 μm2 and less than about 160 μm2. The core and cladding support only the LP01 and LP11 modes at wavelengths greater than 1500 nm. The cladding has a maximum relative refractive index Δ4MAX such that Δ1MAX>Δ4MAX, and the differential group delay between the LP01 and LP11 modes is less than about 0.5 ns/km at a wavelength of 1550 nm.
摘要翻译：公开了适用于模分多路复用（MDM）光传输系统的几种模式光纤。光纤具有半径R1在8μm至14μm范围内的梯度折射率芯，在1550nm波长处大于或等于约2.3且小于约2.7的α值，以及最大相对折射率指数＆Dgr; 1MAX，相对于包层为约0.3％至约0.6％。该光纤还具有大于约90μm2且小于约160μm2的有效面积。芯和包层只支持波长大于1500 nm的LP01和LP11模式。包层具有最大相对折射率＆Dgr; 4MAX，使得＆Dgr; 1MAX>＆Dgr; 4MAX，并且LP01和LP11模式之间的差分群延迟在1550nm的波长处小于约0.5ns / km。

46. 发明申请

US20100195966A1 Large Effective Area Fiber With GE-Free Core 有权
公开(公告)号：US20100195966A1
公开(公告)日：2010-08-05
申请号：US12696189
申请日：2010-01-29
申请人： Scott Robertson Bickham , Dana Craig Bookbinder , Ming-Jun Li , Snigdharaj Kumar Mishra , Daniel Aloysius Nolan , Pushkar Tandon
发明人： Scott Robertson Bickham , Dana Craig Bookbinder , Ming-Jun Li , Snigdharaj Kumar Mishra , Daniel Aloysius Nolan , Pushkar Tandon
IPC分类号： G02B6/036
CPC分类号： C03C13/046 , G02B6/02019 , G02B6/02395 , G02B6/0281 , G02B6/0283 , G02B6/03627 , G02B6/0365
摘要： According to some embodiments an optical waveguide fiber comprises: (i) a Ge free core having an effective area of 90 μm2 to 160 μm2, at a 1550 nm wavelength, and α value 12≦α≦25, said core comprising: (a) a central core region extending radially outwardly from a centerline to a radius 0 μm≦r0≦2 μm, and having a relative refractive index percent profile Δ0(r) in % measured relative to pure silica, wherein −0.1%≦Δ0(r)≦0.1%, wherein the central core region has a maximum relative refractive index percent, Δ0MAX, (b) a first annular core region surrounding and directly adjacent to the central core region and extending to an outer radius r1, wherein 4.8 μm≦r1≦10 μm, and having a relative refractive index percent profile, Δ1(r) in % measured relative to pure silica, and a minimum relative refractive index, Δ2MIN, and the relative refractive index measured at a radius r=2.5 μm being: −0.15≦Δ1(r=2.5 μm)≦0, and Δ0MAX≧Δ1(r=2.5 μm); (c) a fluorine doped second annular region surrounding and directly adjacent to the first annular core region and extending to a radius 13 μm≦r2≦30 μm and having a negative relative refractive index percent profile, Δ2(r) in %, measured relative to pure silica, with a minimum relative refractive index percent Δ2MIN being: Δ2MIN≦Δ1(r=2.5 μm), and −0.7%≦Δ2MIN≦−0.28%; (ii) a cladding surrounding the core and having a relative refractive index percent Δc(r) in % measured relative to pure silica, and Δc(r)=Δ2MIN±0.3%; wherein the relative refractive index profile of the optical fiber is selected to provide attenuation of no more than 0.175 dB/km at the wavelength of 1550 nm.

47. 发明授权

US07620282B2 Low bend loss single mode optical fiber 有权
标题翻译：低弯损耗单模光纤
公开(公告)号：US07620282B2
公开(公告)日：2009-11-17
申请号：US11888959
申请日：2007-08-03
申请人： Scott Robertson Bickham , Dana Craig Bookbinder , Ming-Jun Li , Snigdharaj Kumar Mishra , Daniel Aloysius Nolan , Pushkar Tandon
发明人： Scott Robertson Bickham , Dana Craig Bookbinder , Ming-Jun Li , Snigdharaj Kumar Mishra , Daniel Aloysius Nolan , Pushkar Tandon
IPC分类号： G02B6/02
CPC分类号： G02B6/0365 , G02B6/02014 , G02B6/02266 , G02B6/03611 , Y10T428/31504
摘要： Optical waveguide fiber that is bend resistant and single mode at 1260 nm and at higher wavelengths. The optical fiber includes a core of radius R1 and cladding, the cladding having an annular inner region of radius R2, an annular ring region, and an annular outer region. The annular ring region starts at R2, and the ratio R1/R2 is greater than 0.40.
摘要翻译：光纤光纤在1260 nm和更高波长下具有抗弯曲和单模光纤。光纤包括半径为R1和包层的芯，该包层具有半径为R2的环形内部区域，环形环区域和环形外部区域。环状区域从R2开始，R1 / R2的比值大于0.40。

48. 发明申请

US20080181567A1 High numerical aperture fiber 失效
标题翻译：高数值孔径光纤
公开(公告)号：US20080181567A1
公开(公告)日：2008-07-31
申请号：US11701287
申请日：2007-01-31
申请人： Dana Craig Bookbinder , Ming-Jun Li , Michael Thomas Murtagh , Daniel Aloysius Nolan , Pushkar Tandon , Ji Wang
发明人： Dana Craig Bookbinder , Ming-Jun Li , Michael Thomas Murtagh , Daniel Aloysius Nolan , Pushkar Tandon , Ji Wang
IPC分类号： G02B6/02 , G02B6/036
CPC分类号： G02B6/02366 , G02B6/024 , G02B6/03633
摘要： An optical fiber comprising: a silica based core having a first index of refraction n1; and at least one silica based cladding surrounding the core, the at least one silica based cladding comprising index lowering non-periodic voids containing a gas, wherein at least 80% of said voids have a maximum cross-sectional dimension of less than 2000 nm, and the NA of the fiber layer situated immediately adjacent to and inside said at least one silica based cladding is at least 0.2.
摘要翻译：一种光纤，包括：具有第一折射率n 1的二氧化硅基核; 以及包围所述芯的至少一个二氧化硅基包层，所述至少一个二氧化硅基包层包含含有气体的折射率降低的非周期性空隙，其中至少80％的所述空隙具有小于2000nm的最大横截面尺寸，并且位于所述至少一个基于二氧化硅的包层内和所述至少一个二氧化硅基包层内的所述纤维层的NA为至少0.2。

49. 发明申请

US20080131066A1 Microstructured transmission optical fiber 失效
标题翻译：微结构传输光纤
公开(公告)号：US20080131066A1
公开(公告)日：2008-06-05
申请号：US11800161
申请日：2007-05-04
申请人： Scott Robertson Bickham , Dana Craig Bookbinder , Ming-Jun Li , Daniel Aloysius Nolan , Pushkar Tandon
发明人： Scott Robertson Bickham , Dana Craig Bookbinder , Ming-Jun Li , Daniel Aloysius Nolan , Pushkar Tandon
IPC分类号： G02B6/032
CPC分类号： G02B6/02342 , C03B37/01446 , C03B37/01453 , C03B2203/14 , C03B2203/42 , G02B6/02333 , G02B6/02357 , G02B6/0365
摘要： Microstructured optical fiber for single-moded transmission of optical signals, the optical fiber including a core region and a cladding region, the cladding region including an annular hole-containing region that contains non-periodically disposed holes. The optical fiber provides single mode transmission and low bend loss.
摘要翻译：用于单信号传输光信号的微结构光纤，所述光纤包括芯区域和包层区域，所述包层区域包括含有非周期性布置的孔的环形含孔区域。光纤提供单模传输和低弯曲损耗。

50. 发明授权

US08693834B2 Few mode optical fibers for mode division multiplexing 有权
标题翻译：用于模式分割复用的少量模式光纤
公开(公告)号：US08693834B2
公开(公告)日：2014-04-08
申请号：US13420037
申请日：2012-03-14
申请人： Scott Robertson Bickham , Ming-Jun Li , Daniel Aloysius Nolan , Ji Wang
发明人： Scott Robertson Bickham , Ming-Jun Li , Daniel Aloysius Nolan , Ji Wang
IPC分类号： H04B10/00
CPC分类号： G02B6/0288 , G02B6/02019 , G02B6/02023 , G02B6/03627 , G02B6/0365 , H04J14/04
摘要： A few mode optical fiber suitable for use in a mode division multiplexing (MDM) optical transmission system is disclosed. The optical fiber has a graded-index core with a radius R1 in the range from 8 μm to 14 μm, an alpha value greater than or equal to about 2.3 and less than about 2.7 at a wavelength of 1550 nm, and a maximum relative refractive index Δ1MAX from about 0.3% to about 0.6% relative to the cladding. The optical fiber also has an effective area greater than about 90 μm2 and less than about 160 μm2. The core and cladding support only the LP01 and LP11 modes at wavelengths greater than 1500 nm. The cladding has a maximum relative refractive index Δ4MAX such that Δ1MAX>Δ4MAX, and the differential group delay between the LP01 and LP11 modes is less than about 0.5 ns/km at a wavelength of 1550 nm.
摘要翻译：公开了适用于模分多路复用（MDM）光传输系统的几种模式光纤。光纤具有半径R1在8μm至14μm范围内的梯度折射率芯，在1550nm波长处大于或等于约2.3且小于约2.7的α值，以及最大相对折射率指数＆Dgr; 1MAX，相对于包层为约0.3％至约0.6％。该光纤还具有大于约90μm2且小于约160μm2的有效面积。芯和包层只支持波长大于1500 nm的LP01和LP11模式。包层具有最大相对折射率＆Dgr; 4MAX，使得＆Dgr; 1MAX>＆Dgr; 4MAX，并且LP01和LP11模式之间的差分群延迟在1550nm的波长处小于约0.5ns / km。

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