公开(公告)号：US20120294576A1

公开(公告)日：2012-11-22

申请号：US13448646

申请日：2012-04-17

申请人： Ming-Jun Li

发明人： Ming-Jun Li

IPC分类号： G02B6/028 ,  G02B6/02

CPC分类号： G02B6/0288 ,  G02B6/02019 ,  G02B6/03627 ,  G02B6/0365

摘要： Large effective area optical fibers are disclosed. In one embodiment, an optical fiber includes a glass core and a glass cladding surrounding and in direct contact with the glass core. The glass core may include a radius Rc from about 12 μm to about 50 μm; a graded refractive index profile with an alpha value greater than or equal to about 1.0 and less than about 10 at a wavelength of 1550 nm; and a maximum relative refractive index ΔcMAX% from about 0.2% to about 0.75% relative to the glass cladding. An effective area of the core may be greater than or equal to about 150 μm2 such that the core supports the propagation and transmission of an optical signal with X modes at a wavelength of 1550 nm, wherein X is an integer greater than 1 and less than or equal to 110. The glass cladding may include a maximum relative refractive index Δc1MAX% such that ΔcMAX%>Δc1MAX%. The optical fiber has an RMS pulse broadening of less than or equal to about 0.15 ns/km at a wavelength of 1550 nm.

摘要翻译： 公开了大面积有效面积的光纤。 在一个实施例中，光纤包括围绕玻璃芯和与玻璃芯直接接触的玻璃外壳。 玻璃芯可包括约12μm至约50μm的半径Rc; 在1550nm的波长处具有大于或等于约1.0且小于约10的α值的渐变折射率分布; 并且相对于玻璃包层的最大相对折射率＆Dgr; cMAX％为约0.2％至约0.75％。 芯的有效面积可以大于或等于约150μm2，使得芯支持在1550nm的波长下具有X模的光信号的传播和传输，其中X是大于1且小于 或等于110.玻璃包层可以包括最大相对折射率＆Dgr; c1MAX％，使得＆Dgr; cMAX％>＆Dgr; c1MAX％。 该光纤在1550nm的波长下具有小于或等于约0.15ns / km的RMS脉冲加宽。

公开(公告)号：US20120125053A1

公开(公告)日：2012-05-24

申请号：US12951175

申请日：2010-11-22

申请人： Dana Craig Bookbinder ,  Ming-Jun Li ,  Peter Joseph Ronco ,  Pushkar Tandon

发明人： Dana Craig Bookbinder ,  Ming-Jun Li ,  Peter Joseph Ronco ,  Pushkar Tandon

IPC分类号： C03B37/012

CPC分类号： C03B37/0253 ,  C03B37/027 ,  C03B2201/12 ,  C03B2201/31 ,  C03B2203/23 ,  C03B2203/26

摘要： A method of manufacturing an optical fiber includes providing a preform in a furnace, and drawing a plurality of optical fibers from the preform at a plurality of different draw tensions. A bandwidth characteristic of each of the optical fiber is drawn at the different draw tensions is measured. A draw tension setpoint is selected based on the measured bandwidth characteristic of each optical fiber and the draw tension is adjusted to the selected draw tension setpoint. The method further includes drawing from the preform a tuned optical fiber at the selected draw tension setpoint which provides peak bandwidth.

摘要翻译： 制造光纤的方法包括在炉中提供预制件，并且以多种不同的拉伸张力从预成型件拉制多根光纤。 每个光纤的带宽特性被绘制在不同的拉伸张力下。 基于每个光纤的测量带宽特性选择拉伸张力设定点，并将拉伸张力调整到所选拉伸张力设定点。 该方法还包括从所述预成型件中抽出所选择的拉伸张力设定点的调谐光纤，其提供峰值带宽。

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。

公开(公告)号：US20120106909A1

公开(公告)日：2012-05-03

申请号：US12915388

申请日：2010-10-29

申请人： Scott Robertson Bickham ,  Dana Craig Bookbinder ,  Ming-Jun Li ,  Snigdharaj Kumar Mishra ,  Pushkar Tandon

发明人： Scott Robertson Bickham ,  Dana Craig Bookbinder ,  Ming-Jun Li ,  Snigdharaj Kumar Mishra ,  Pushkar Tandon

IPC分类号： G02B6/028

CPC分类号： G02B6/03683 ,  G02B6/02019

摘要： An optical fiber includes a central glass core region comprising maximum refractive index delta percent Δ1, a first inner annular region surrounding said core comprising refractive index delta percent Δ2, a depressed annular region surrounding said inner annular region and comprising Δ3 and a third annular region surrounding the depressed annular region comprising refractive index delta percent Δ4; wherein Δ1MAX>Δ4>Δ2>Δ3. The difference between Δ4 and Δ2 is greater than 0.01% and profile volume, |V3| is at least 10%-μm2. The fibers exhibit an effective area at 1550 nm which is greater than 110 μm2.

摘要翻译： 光纤包括包含最大折射率Δ百分比Dgr的中心玻璃芯区域; 1，围绕所述芯的第一内环形区域，包括折射率Δ百分比Dgr; 2，环绕所述内环形区域的凹陷环形区域，并且包括Dgr 3 围绕所述凹陷的环形区域的第三环形区域包括折射率Δ百分比Dgr; 4; 其中＆Dgr; 1MAX>＆Dgr; 4>＆Dgr; 2＆Dgr; 3。 ＆Dgr; 4和＆Dgr; 2之间的差异大于0.01％，配置文件卷| V3 | 至少为10％-μm2。 纤维在1550nm处表现出大于110μm2的有效面积。

公开(公告)号：US20110121202A1

公开(公告)日：2011-05-26

申请号：US12623973

申请日：2009-11-23

申请人： Ming-Jun Li ,  Shenping Li

发明人： Ming-Jun Li ,  Shenping Li

IPC分类号： G01J1/58

CPC分类号： G01J3/10 ,  G01J3/4406 ,  H01S3/0057 ,  H01S3/0675 ,  H01S3/06754 ,  H01S3/06791 ,  H01S3/2383

摘要： A nonlinear fluorescence imaging system and method for generating fluorescence imaging includes a pulsed laser source for generating laser pulses at a first wavelength and an optical pulse stretcher including one or more optical pulse stretcher fibers having a first dispersion parameter at the first wavelength. The system also includes a probe for interfacing with a sample to deliver the laser pulses and extract fluorescence signals excited in the sample. One or more optical delivery fibers are included for delivering the laser pulses and collecting nonlinear fluorescence signals. The optical delivery fiber has a second dispersion parameter at the first wavelength which is opposite a polarity of the first dispersion parameter. A detector detects images based on the collected fluorescence signals.

摘要翻译： 用于产生荧光成像的非线性荧光成像系统和方法包括用于产生第一波长的激光脉冲的脉冲激光源和包括具有第一波长的第一色散参数的一个或多个光脉冲展宽光纤的光脉冲展宽器。 该系统还包括用于与样品接口以传送激光脉冲并提取在样品中激发的荧光信号的探针。 包括一个或多个光学传递光纤用于传送激光脉冲和收集非线性荧光信号。 光传送光纤具有与第一色散参数的极性相反的第一波长的第二色散参数。 检测器基于收集的荧光信号检测图像。

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。

公开(公告)号：US20100303428A1

公开(公告)日：2010-12-02

申请号：US12770250

申请日：2010-04-29

申请人： Scott Robertson Bickham ,  Dana Craig Bookbinder ,  Ming-Jun Li ,  Pushkar Tandon

发明人： Scott Robertson Bickham ,  Dana Craig Bookbinder ,  Ming-Jun Li ,  Pushkar Tandon

IPC分类号： G02B6/028

CPC分类号： G02B6/0288 ,  G02B6/03627

摘要： Bend resistant multimode optical fibers are disclosed herein. Multimode optical fibers disclosed herein comprise a core region and a cladding region surrounding and directly adjacent to the core region, the cladding region comprising a depressed-index annular region, wherein the inner boundary of said depressed index region is an extension of the graded index core, the depressed region having a moat volume greater than 105%-um2.

摘要翻译： 本文公开了抗弯曲多模光纤。 本文公开的多模光纤包括围绕并直接邻近芯区域的芯区域和包层区域，所述包层区域包括凹陷折射率环形区域，其中所述凹陷折射率区域的内边界是渐变折射率核心的延伸 ，凹陷区域具有大于105％的槽口体积--2。

公开(公告)号：US07773848B2

公开(公告)日：2010-08-10

申请号：US12182313

申请日：2008-07-30

申请人： Dana Craig Bookbinder ,  Ming-Jun Li

发明人： Dana Craig Bookbinder ,  Ming-Jun Li

IPC分类号： G02B6/036

CPC分类号： G02B6/0365 ,  G02B6/02009 ,  G02B6/02266 ,  G02B6/03611

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 0.45.

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的能力。 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比大于0.45。

公开(公告)号：US07773846B2

公开(公告)日：2010-08-10

申请号：US12072655

申请日：2008-02-27

申请人： Scott Robertson Bickham ,  Dana Craig Bookbinder ,  Ming-Jun Li ,  Snigdharaj Kumar Mishra

发明人： Scott Robertson Bickham ,  Dana Craig Bookbinder ,  Ming-Jun Li ,  Snigdharaj Kumar Mishra

IPC分类号： G02B6/032

CPC分类号： G02B6/03688 ,  G02B6/02014 ,  G02B6/02242 ,  G02B6/02271 ,  G02B6/02276 ,  G02B6/02333 ,  G02B6/02357 ,  G02B6/03611 ,  G02B6/0365

摘要： Microstructured optical fiber for transmitting optical signals comprised of light, the optical fiber including a core region and a cladding region surrounding the core region, the cladding region including at least one annular region having an index of refraction lower than that of the remainder of the cladding. The optical fiber provides an absolute SBS threshold in dBm greater than about 9.3+10log[(1−e−(0.19)(50)/4.343)/(1−e−(α)(L)/4.343)], wherein L is the length in km and α is the attenuation in dB/km at 1550 nm, and a fiber cutoff wavelength of less than 1400 nm.

摘要翻译： 微结构光纤，用于透射由光构成的光信号，所述光纤包括芯区域和围绕所述芯区域的包层区域，所述包层区域包括至少一个折射率低于所述包层的其余部分的折射率的环形区域 。 光纤提供的绝对SBS阈值以dBm大于约9.3 + 10log [（1-e-（0.19）（50）/4.343）/（1-e-（α）（L）/4.343）]，其中L 是以km为单位的长度，α是在1550nm处以dB / km计的衰减，并且光纤截止波长小于1400nm。

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.