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1. 发明申请

US20170363810A1 MULTIMODE BEAM COMBINER 审中-公开
公开(公告)号：US20170363810A1
公开(公告)日：2017-12-21
申请号：US15474073
申请日：2017-03-30
申请人： OFS Fitel, LLC
发明人： William R. Holland , Cassandra Thalman
IPC分类号： G02B6/26 , G02B6/02 , G02B6/028 , G02B6/38
CPC分类号： G02B6/26 , G02B6/02004 , G02B6/0288 , G02B6/04 , G02B6/2808 , G02B6/3825
摘要： An up-taper is applied by a mode adapter to increase a signal mode area prior to tapering and combining.

2. 发明申请

US20170297947A1 METHODS OF MAKING AN OPTICAL FIBER, AND OPTICAL FIBER 有权
公开(公告)号：US20170297947A1
公开(公告)日：2017-10-19
申请号：US15337591
申请日：2016-10-28
申请人： Corning Incorporated
发明人： Kenneth Duane Billings , Dana Craig Bookbinder , Paul Andrew Chludzinski , Robert Clark Moore , Pushkar Tandon
IPC分类号： C03B37/025 , G02B6/02 , C03C25/10 , G02B6/036
CPC分类号： C03B37/02718 , C03B37/0253 , C03B37/02727 , C03B37/029 , C03B37/032 , C03B2201/02 , C03B2201/12 , C03B2201/20 , C03B2201/31 , C03B2201/50 , C03B2203/224 , C03B2203/24 , C03B2203/26 , C03B2205/42 , C03B2205/44 , C03B2205/55 , C03B2205/56 , C03B2205/60 , C03C25/106 , G02B6/02004 , G02B6/02009 , G02B6/0281 , G02B6/03622 , G02B6/03627 , G02B6/03633 , G02B6/03694
摘要： According to some embodiments a method of processing an optical fiber comprises the steps of: (i) drawing the fiber at a drawing rate of at least 30 m/sec; and (ii) cooling the drawn fiber in a gas at an average cooling rate less than 5000° C./s, such that said cooling reduces the temperature of the fiber from an entering temperature in the range between 1500° C. and 1700° C. to another temperature in the range between 1200° C. and 1400° C., the gas being at a temperature between 800° C. and 1500° C.; and the thermal conductivity κ of the gas being not greater than 1.5×10−4 cal/cm-s-K for at least one temperature within a range of 800° C. to 1500° C. at one atm (atmosphere) pressure absolute.

3. 发明申请

US20170192169A1 OPTICAL FIBER 有权
公开(公告)号：US20170192169A1
公开(公告)日：2017-07-06
申请号：US15467264
申请日：2017-03-23
申请人： Fujikura Ltd.
发明人： Takayuki Kitamura , Sho Endo , Tatsuya Kishi , Ryo Maruyama
IPC分类号： G02B6/036 , G02B6/02
CPC分类号： G02B6/03627 , C03B2201/02 , C03B2201/12 , C03B2201/20 , C03B2203/22 , C03B2203/23 , G02B6/02004 , G02B6/0365
摘要： An optical fiber including a core and a cladding including an inner cladding layer and an outer cladding layer is provided. The refractive index of the core Δ1, the refractive index of the inner cladding layer Δ2, and the refractive index of the outer cladding layer Δ3 have a relationship denoted by the following expressions: Δ1max>Δ2min and Δ1max>Δ3, and 0.01%

4. 发明申请

US20160209583A1 MULTI-CORE OPTICAL FIBER, OPTICAL CABLE, AND OPTICAL CONNECTOR 有权
标题翻译：多芯光纤，光缆和光连接器
公开(公告)号：US20160209583A1
公开(公告)日：2016-07-21
申请号：US15080878
申请日：2016-03-25
申请人： SUMITOMO ELECTRIC INDUSTRIES, LTD.
发明人： Tetsuya HAYASHI , Osamu SHIMAKAWA
IPC分类号： G02B6/02 , G02B6/38
CPC分类号： G02B6/02042 , G02B6/02004 , G02B6/02214 , G02B6/02285 , G02B6/02395 , G02B6/024 , G02B6/0365 , G02B6/3885
摘要： An MCF of the present embodiment has eight or more cores. A diameter of a common cladding is not more than 126 μm. Optical characteristics of each core are as follows: a TL at a predetermined wavelength of 1310 nm is not more than 0.4 dB/km; an MFD at the predetermined wavelength is from 8.0 μm to 10.1 μm; a BL in a BR of not less than 5 mm or in the BR of not less than 3 mm and, less than 5 mm is not more than 0.25 dB/turn at the predetermined wavelength; λ0 is from 1300 nm to 1324 nm; λcc is not more than 1260 nm; an XT or XTs at the predetermined wavelength is not more than 0.001/km.
摘要翻译：本实施例的MCF具有8个以上的核。公共包层的直径不大于126μm。每个芯的光学特性如下：1310nm的预定波长的TL不大于0.4dB / km; 预定波长的MFD为8.0μm至10.1μm; 在预定波长下，不小于5mm或BR不小于3mm，BR小于5mm的BL不大于0.25dB /匝; λ0为1300nm〜1324nm; λcc不大于1260nm; 预定波长的XT或XT不大于0.001 / km。

5. 发明申请

US20100103978A1 PURE SILICA CORE MULTIMODE FIBER SENSOES FOR DTS APPICATIONS 有权
标题翻译：纯硅胶多芯片光纤信号用于DTS应用
公开(公告)号：US20100103978A1
公开(公告)日：2010-04-29
申请号：US12451866
申请日：2008-07-18
申请人： Chung Lee , Kwang Suh , Mahesh Ajgaonkar , Kent Kalar
发明人： Chung Lee , Kwang Suh , Mahesh Ajgaonkar , Kent Kalar
IPC分类号： G01K3/00
CPC分类号： G01K11/32 , G02B6/02004
摘要： A new step-index multimode pure silica core fiber for DTS (Distributed Temperature Sensing) system particularly useful for downhole environments is disclosed and described. The new sensor system provides optimum tradeoffs between coupling power, spatial resolution, and temperature resolution.
摘要翻译：公开和描述了一种用于DTS（分布式温度感测）系统的新的步进折射率多模纯硅芯光纤，特别适用于井下环境。新的传感器系统提供耦合功率，空间分辨率和温度分辨率之间的最佳折衷。

6. 发明授权

US07574087B2 Optical fiber 有权
标题翻译：光纤
公开(公告)号：US07574087B2
公开(公告)日：2009-08-11
申请号：US11790833
申请日：2007-04-27
申请人： Dai Inoue , Hiroshi Oyamada , Yuichi Morishita
发明人： Dai Inoue , Hiroshi Oyamada , Yuichi Morishita
IPC分类号： G02B6/02
CPC分类号： G02B6/03611 , G02B6/02004 , G02B6/02019 , G02B6/0281
摘要： An optical fiber includes a clad portion and a core portion surrounded by the clad portion. Here, the clad portion is formed by substantially pure quartz, and the core portion has a higher refractive index than the clad portion. The optical fiber is characterized in that a relative refractive index difference of a center of the core portion falls within a range from 0.15% to 0.30%, and a maximum relative refractive index difference of the core portion falls within a range from 0.4% to 0.6%. Here, it is preferable that an average relative refractive index difference of the core portion falls within a range from 0.30% to 0.40%. Here, a mode field diameter of the optical fiber falls within a range from 8.6 μm to 9.5 μm at 1310 nm, and a cable cutoff wavelength of the optical fiber is equal to or lower than 1260 nm. Note that, after the optical fiber is subjected to hydrogen aging, a loss of the optical fiber is preferably equal to or lower than 0.4 dB/km at 1383 nm.
摘要翻译：光纤包括包层部分和由包层部分围绕的芯部分。这里，包层部分由基本上纯的石英形成，并且芯部具有比包层部更高的折射率。光纤的特征在于芯部的中心的相对折射率差在0.15％〜0.30％的范围内，芯部的最大相对折射率差落入0.4〜0.6的范围内％。这里，芯部的平均相对折射率差优选在0.30〜0.40％的范围内。这里，光纤的模场直径在1310nm处在8.6μm〜9.5μm的范围内，光纤的电缆截止波长为1260nm以下。注意，在光纤经受氢老化之后，在1383nm处光纤的损耗优选等于或低于0.4dB / km。

7. 发明授权

US07526168B2 Optical fiber, transmission system, and wavelength division multiplexing system 有权
标题翻译：光纤，传输系统和波分复用系统
公开(公告)号：US07526168B2
公开(公告)日：2009-04-28
申请号：US11744117
申请日：2007-05-03
申请人： Shoichiro Matsuo , Shoji Tanigawa , Keisuke Uchiyama , Kuniharu Himeno
发明人： Shoichiro Matsuo , Shoji Tanigawa , Keisuke Uchiyama , Kuniharu Himeno
IPC分类号： G02B6/02
CPC分类号： H04J14/02 , G02B6/02004 , G02B6/02009 , G02B6/02266 , G02B6/0281 , G02B6/0286 , G02B6/03605 , G02B6/03644 , G02B6/03666 , G02B6/03688 , H04B10/2537 , H04J14/0226 , H04J14/0232 , H04J14/0247 , H04J14/0252 , H04J14/0282
摘要： An optical fiber has a first mode field diameter in a dominant mode of an acoustic mode generated in the optical fiber different from a second mode field diameter in a light intensity distribution of the optical fiber. Furthermore, a transmission system is configured to perform an analog signal transmission, a baseband transmission, or an optical SCM transmission by use of the optical fiber.
摘要翻译：在光纤的光强度分布中，光纤具有在与第二模场直径不同的光纤中产生的声学模式的主模式中的第一模场直径。此外，传输系统被配置为通过使用光纤来执行模拟信号传输，基带传输或光SCM传输。

8. 发明申请

US20080285926A1 Optical Fiber Having Desired Waveguide Parameters and Method for Producing the Same 审中-公开
标题翻译：具有所需波导参数的光纤及其制造方法
公开(公告)号：US20080285926A1
公开(公告)日：2008-11-20
申请号：US11596164
申请日：2006-03-07
申请人： Manas Ranjan Sahu
发明人： Manas Ranjan Sahu
IPC分类号： G02B6/02 , G01N23/00
CPC分类号： C03B37/014 , G02B6/02004 , G02B6/02214
摘要： A method for producing an optical fiber having desired cutoff wavelength, mode field diameter [MFD] and zero dispersion wavelength [ZDW] waveguide parameters even when actual refractive index [RI] profile has various configurations is provided. The method comprises overcladding/clad jacketing over the core rod based on predetermined core diameter of the core rod; refractive index [RI] profile of core of the core rod; and refractive index [RI] profile of clad of the core rod to achieve said waveguide parameters within the predetermined limits.
摘要翻译：提供了即使实际折射率[RI]轮廓具有各种构造的具有期望的截止波长，模场直径[MFD]和零色散波长[ZDW]波导参数的光纤的制造方法。该方法包括基于芯棒的预定芯直径的芯棒上的包覆/覆层护套; 芯棒芯的折射率[RI]轮廓; 和芯棒的包层的折射率[RI]轮廓，以在预定限度内实现所述波导参数。

9. 发明授权

US07440665B2 Optical fiber 失效
标题翻译：光纤
公开(公告)号：US07440665B2
公开(公告)日：2008-10-21
申请号：US11317016
申请日：2005-12-27
申请人： Takemi Hasegawa
发明人： Takemi Hasegawa
IPC分类号： G02B6/036
CPC分类号： G02B6/03644 , G02B6/02004 , G02B6/03611
摘要： An optical fiber not only can suppress SBS but also can be produced easily. The optical fiber 1 comprises an optical core region 10 including the center axis and an optical cladding region 14 surrounding the optical core region 10. The optical core region 10 is composed of a first region 11, a second region 12, and a third region 13 in this order from the inside. The third region 13, which is a part of the optical core region 10, is a ring-shaped acoustic core region. The propagation mode of an acoustic wave can be localized in the third region 13.
摘要翻译：光纤不仅可以抑制SBS，而且可以容易地制造。光纤1包括包括中心轴的光纤区域10和围绕光纤区域10的光学包层区域14。光学核心区域10从第一区域11，第二区域12和第三区域13的内部依次构成。作为光纤芯区域10的一部分的第三区域13是环状声芯区域。声波的传播模式可以被定位在第三区域13中。

10. 发明申请

US20080101755A1 SINGLE-MODE OPTICAL FIBER 有权
标题翻译：单模光纤
公开(公告)号：US20080101755A1
公开(公告)日：2008-05-01
申请号：US11951005
申请日：2007-12-05
申请人： Shoichiro MATSUO , Kuniharu Himeno
发明人： Shoichiro MATSUO , Kuniharu Himeno
IPC分类号： G02B6/02 , G02B6/036
CPC分类号： G02B6/03611 , G02B6/02 , G02B6/02004 , G02B6/0281 , G02B6/03627 , G02B6/03633 , G02B6/03644 , G02B6/0365 , G02B6/03666
摘要： A single-mode optical fiber has a prescribed mode field diameter (MFD1 (μm)) at a first wavelength λ1, in which a bending loss when measured at a second wavelength λ2 (μm) and wound with a bending radius r (mm) is Lb (dB) for one bending, a connector/splice loss with an optical fiber that has a prescribed mode field diameter MFD2 (μm) at the first wavelength λ1 is Ls (dB) for one connection/splice point at the second wavelength λ2 (μm), and an mode field diameter dependence of a total loss coefficient calculated by a formula (1) has a local minimal value in a range of MFD1±0.5 μm, with the formula (1) being as follows: L=ws·Ls+wb·Lb, (1) ws+wb=1, (2) ws>0, wb>0, (3) where ws and wb in the formula (1) represent dimensionless weighting factors and are set within a range that satisfies the formulas (2) and (3).
摘要翻译：单模光纤在第一波长λ1> 1处具有规定的模场直径（MFD <1>（mum）），其中在第二波长λ1处测量时的弯曲损耗波长λ2（mum）并以弯曲半径r（mm）卷绕，对于一次弯曲为L b（dB），光纤的连接器/接头损耗为对于一个连接/接合点，具有第一波长λ1的规定模场直径MFD 2（mum）为L s（S / S）在第二波长λ2（mum）下，由公式（1）计算的总损耗系数的模场直径依赖性在MFD <1>的范围内具有局部最小值， /SUB>+0.5 mum，公式（1）如下：<？in-line-formula description =“In-line Formulas”end =“lead”？> L = w （1）<？在线公式描述=“在线公式”结束 =“tail”？> <？in-line-formula description =“In-line Formulas”end =“lead” ？>>>>>，<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< ？in-line-formula description =“In-line Formulas”end =“lead”？> w > 0，w > 0，（3）<？在公式（1）中，在公式（1）中，其中w 和w 表示无量纲加权因子（in-line-formula description =“In-line Formulas”end =“tail” 并且设定在满足式（2）和（3）的范围内。

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