公开(公告)号：US20090060436A1

公开(公告)日：2009-03-05

申请号：US12072655

申请日：2008-02-27

Applicant: Scott Robertson Bickham ,  Dana Craig Boolbinder ,  Ming-Jun Li ,  Snigdharaj Kumar Mishra

Inventor： Scott Robertson Bickham ,  Dana Craig Boolbinder ,  Ming-Jun Li ,  Snigdharaj Kumar Mishra

IPC: G02B6/028

CPC classification number: G02B6/03688 ,  G02B6/02014 ,  G02B6/02242 ,  G02B6/02271 ,  G02B6/02276 ,  G02B6/02333 ,  G02B6/02357 ,  G02B6/03611 ,  G02B6/0365

Abstract: 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.

Abstract translation: 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：US20080279515A1

公开(公告)日：2008-11-13

申请号：US12082858

申请日：2008-04-15

Applicant: Scott Robertson Bickham ,  Dana Craig Bookbinder ,  Ming-Jun Li ,  Snigdharaj Kumar Mishra ,  Daniel Aloysius Nolan ,  Pushkar Tandon

Inventor： Scott Robertson Bickham ,  Dana Craig Bookbinder ,  Ming-Jun Li ,  Snigdharaj Kumar Mishra ,  Daniel Aloysius Nolan ,  Pushkar Tandon

IPC: G02B6/02

CPC classification number: G02B6/02333 ,  C03B37/0124 ,  C03B37/01807 ,  C03B2201/12 ,  C03B2201/50 ,  C03B2203/14 ,  C03B2203/23 ,  G02B6/02357 ,  G02B6/0365

Abstract: Disclosed is an optical fiber having a silica-based core comprising an alkali metal oxide a silica-based core, said core comprising an alkali metal oxide selected from the group consisting of K2O, Na2O, LiO2, Rb2O, Cs2O and mixtures thereof in an average concentration in said core between about 10 and 10000 ppm by weight, and a silica-based cladding surrounding and directly adjacent the core, the cladding including a region having a lower index of refraction than the remainder of such cladding. By appropriately selecting the concentration of alkali metal oxide dopant in the core and the cladding, a low loss optical fiber may be obtained which exhibits a cable cutoff less than 1400 nm chromatic dispersion at 1550 nm between about 13 and 19 ps/nm/km, and a zero dispersion wavelength less than about 1324 nm.

Abstract translation: 公开了一种具有二氧化硅基核的光纤，其包含碱金属氧化物二氧化硅基核，所述芯包含选自K 2 O，Na 2 O， 2 O，LiO 2，Rb 2 O，Cs 2 O及其混合物，其中所述芯中的平均浓度在约 10重量ppm和10000重量ppm，以及围绕并直接邻近该芯的二氧化硅基包层，该包层包括具有比这种包层的其余部分低的折射率的区域。 通过适当选择芯和包层中的碱金属氧化物掺杂剂的浓度，可以获得低损耗光纤，其在1550nm处显示出在约13和19ps / nm / km之间的电缆截止小于1400nm的色散， 和小于约1324nm的零色散波长。

公开(公告)号：US20080056658A1

公开(公告)日：2008-03-06

申请号：US11888958

申请日：2007-08-03

Applicant: Scott Robertson Bickham ,  Dana Craig Bookbinder ,  Ming-Jun Li ,  Daniel Aloysius Nolan ,  Pushkar Tandon ,  Snigdharaj Kumar Mishra

Inventor： Scott Robertson Bickham ,  Dana Craig Bookbinder ,  Ming-Jun Li ,  Daniel Aloysius Nolan ,  Pushkar Tandon ,  Snigdharaj Kumar Mishra

IPC: G02B6/036

CPC classification number: G02B6/0365 ,  G02B6/02009 ,  G02B6/02266 ,  G02B6/14

Abstract: Optical waveguide fiber that is bend resistant and single moded at 1260 nm and at higher wavelengths. The optical fiber includes a core and cladding, the cladding having an annular inner region, an annular ring region, and an annular outer region. The annular ring region has a low relative refractive index.

公开(公告)号：US20080056654A1

公开(公告)日：2008-03-06

申请号：US11888959

申请日：2007-08-03

Applicant: Scott Robertson Bickham ,  Dana Craig Bookbinder ,  Ming-Jun Li ,  Snigdharaj Kumar Mishra ,  Daniel Aloysius Nolan ,  Pushkar Tandon

Inventor： Scott Robertson Bickham ,  Dana Craig Bookbinder ,  Ming-Jun Li ,  Snigdharaj Kumar Mishra ,  Daniel Aloysius Nolan ,  Pushkar Tandon

IPC: G02B6/028

CPC classification number: G02B6/0365 ,  G02B6/02014 ,  G02B6/02266 ,  G02B6/03611 ,  Y10T428/31504

Abstract: 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.

Abstract translation: 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R 1的芯和包层，该包层具有半径为R 2 2的环形内部区域，环形环区域和环形外部区域。 环形区域从R 2 2开始，R 1 / R 2比值大于0.40。

公开(公告)号：US20070196061A1

公开(公告)日：2007-08-23

申请号：US11708214

申请日：2007-02-20

Applicant: Scott Robertson Bickham ,  Snigdharaj Kumar Mishra

Inventor： Scott Robertson Bickham ,  Snigdharaj Kumar Mishra

IPC: G02B6/02

CPC classification number: G02B6/0365 ,  G02B6/02223 ,  G02B6/02242 ,  G02B6/02266 ,  G02B6/0281 ,  G02B6/0283 ,  G02B6/0288 ,  G02B6/03611

Abstract: An optical waveguide fiber having a core surrounded by a cladding. The core may have only a central segment, or a central segment and an annular segment surrounding the central segment. The central segment has a positive relative refractive index profile. The annular segment has a negative relative refractive index profile. The relative refractive index of the optical fiber provides an LP02 cable cutoff less than 850 nm and an LP21 cable cutoff less than 850 nm.

Abstract translation: 具有由包层包围的芯的光波导光纤。 芯部可以仅具有中心部分，或者中心部分和围绕中心部分的环形部分。 中心部分具有正相对折射率分布。 环形片段具有负的相对折射率分布。 光纤的相对折射率提供LP02电缆截止值小于850nm，LP21电缆截止值小于850nm。

公开(公告)号：US07103250B1

公开(公告)日：2006-09-05

申请号：US11294224

申请日：2005-12-02

Applicant: Lu Zhang ,  Daniel Aloysius Nolan ,  Snigdharaj Kumar Mishra ,  Alexej Sysoliatin

Inventor： Lu Zhang ,  Daniel Aloysius Nolan ,  Snigdharaj Kumar Mishra ,  Alexej Sysoliatin

IPC: G02B6/26 ,  G02B6/42 ,  G02B6/02

CPC classification number: G02B6/0281 ,  C03B37/0253 ,  C03B37/02727 ,  C03B37/02763 ,  C03B2203/18 ,  C03B2205/20 ,  C03B2205/40 ,  C03B2205/56 ,  G01N21/648 ,  G01N21/7703 ,  G02B6/02 ,  G02B6/03611 ,  G02B6/03627 ,  G02B6/03644

Abstract: An optical fiber (10) having a first section (10A) with little or no small-angle scattering (SAS) and a second section (10B) with an increased amount of SAS is disclosed. The optical fiber is formed by changing the draw temperature (TD) and/or the draw speed (VD) so as to induce index of refraction perturbations (P) at a core interface (40). The SAS optical fiber is useful in forming an evanescent optical fiber sensor (400), wherein the increased SAS enhances an evanescent wave portion (436) of a guided wave (434), which leads to increased sensitivity when measuring a property of a test medium (500).

Abstract translation: 公开了一种具有很少或不具有小角度散射（SAS）的第一部分（10A）和具有增加的SAS量的第二部分（10B）的光纤（10）。 光纤是通过改变拉伸温度（T SUB）和/或拉伸速度（V SUB）来形成的，以便引起折射率（P）在 核心接口（40）。 SAS光纤可用于形成渐逝光纤传感器（400），其中增加的SAS增强导波（434）的ev逝波部分（436），这导致测量测试介质的性质时灵敏度增加 （500）。