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1. 发明申请

US20180079677A1 OPTICAL FIBERS HAVING A VARYING CLAD INDEX AND METHODS OF FORMING SAME 审中-公开
公开(公告)号：US20180079677A1
公开(公告)日：2018-03-22
申请号：US15702961
申请日：2017-09-13
申请人： Corning Incorporated
发明人： Dana Craig Bookbinder , Paul Andrew Chludzinski , Brian Lee Harper , Ming-Jun Li , Snigdharaj Kumar Mishra , Sonya Marie Raney , Pushkar Tandon
IPC分类号： C03B37/014 , C03B37/018 , G02B6/036 , G02B6/028 , G02B6/02
CPC分类号： G02B6/0286 , C03B37/01413 , C03B37/01446 , C03B37/01466 , C03B37/018 , C03B37/025 , C03B2201/08 , C03B2201/20 , C03B2207/70 , G02B6/02214 , G02B6/0283 , G02B6/03627 , G02B6/03644
摘要： An optical fiber with low attenuation and methods of making same are disclosed. The optical fiber has a core, an inner cladding surround the core, and an outer cladding surrounding the inner cladding. The outer cladding is chlorine-doped such that the relative refractive index varies as a function of radius. The radially varying relative refractive index profile of the outer cladding reduces excess stress in the core and inner cladding, which helps lower fiber attenuation while also reducing macrobend and microbend loss. A process of fabricating the optical fiber includes doping an overclad soot layer of a soot preform with chlorine and then removing a portion of the chlorine dopant from an outermost region of the overclad soot layer. The soot preform with the modified chlorine dopant profile is then sintered to form a glass preform, which can then be used for drawing the optical fiber.

2. 发明申请

US20180011245A1 DISPERSION SHIFTED OPTICAL FIBER 审中-公开
公开(公告)号：US20180011245A1
公开(公告)日：2018-01-11
申请号：US15547265
申请日：2016-01-25
申请人： FUJIKURA LTD.
发明人： Takaaki Suzuki , Shoichiro Matsuo
IPC分类号： G02B6/036 , G02B6/028 , G02B6/02
CPC分类号： G02B6/03672 , G02B6/02014 , G02B6/02276 , G02B6/0281 , G02B6/0283 , G02B6/03644 , G02B6/03661
摘要： A dispersion shifted optical fiber where a radius r0 of a first center segment is 0.5 μm to 2.8 μm, and a relative refractive index difference Δ0 is 0.4% or more and 0.9% or less. A radius r1 of a first segment is 1.8 μm or more and 4.5 μm or less. A radius r2 of a second segment is 4.0 μm or more and 8.0 μm or less, and a relative refractive index difference Δ2 is 0.00% or more and 0.07% or less. A radius r3 of a third segment is 4.5 μm or more and 8.5 μm or less, and a relative refractive index difference Δ3 is 0.285% or more and 0.5% or less. A radius r4 of a fourth segment is 8.0 μm or more and 16.0 μm or less, and a relative refractive index difference Δ4 is 0.005% or more and 0.04% or less.

3. 发明授权

US09791347B2 Method and system for non-contact optical-power measurement 有权
公开(公告)号：US09791347B2
公开(公告)日：2017-10-17
申请号：US15231360
申请日：2016-08-08
申请人： Lockheed Martin Corporation
发明人： Stephen J. Guimond
IPC分类号： G01M11/02 , G01J1/02 , G01J1/42 , G02B6/024 , G02B6/036 , G02B6/028 , G01J1/04
CPC分类号： G01M11/02 , G01J1/0295 , G01J1/0425 , G01J1/0429 , G01J1/4228 , G01J1/4257 , G02B6/024 , G02B6/0283 , G02B6/03622
摘要： The present invention provides methods and systems for measuring optical power that require neither alterations to the optical fiber nor physical contact with the optical fiber, the system including an optical fiber configured to propagate an optical signal, wherein the optical fiber includes a core and at least a first cladding layer, wherein a portion of the optical signal scatters out of the optical fiber along a length of the optical fiber to form scattered fiber light; a detector system configured to receive the scattered fiber light along the length of the optical fiber and to output a detection signal based on the received scattered fiber light; and a processor configured to receive the detection signal and to determine a power value of the optical signal based on the received detection signal.

4. 发明申请

US20170269294A1 OPTICAL FIBER 审中-公开
公开(公告)号：US20170269294A1
公开(公告)日：2017-09-21
申请号：US15505155
申请日：2016-05-13
申请人： FUJIKURA LTD.
发明人： Sho Endo , Takayuki Kitamura
IPC分类号： G02B6/036 , G02B6/02 , G02B6/028
CPC分类号： G02B6/036 , G02B6/02395 , G02B6/0283 , G02B6/0285 , G02B6/03627 , G02B6/0365
摘要： The refractive index of the inner core part 11 in a region in contact with the boundary of the outer core part 12 is higher than the refractive index of the outer core part 12. The refractive index of the outer core part 12 is gradually decreased from the inner circumferential side to the outer circumferential side. The refractive index of the inner cladding part 21 is equal to the refractive index of the outermost circumferential part of the outer core part 12 and not greater than the refractive index of the outer cladding part 22.

5. 发明授权

US09632243B2 Glass large-core optical fibers 有权
公开(公告)号：US09632243B2
公开(公告)日：2017-04-25
申请号：US14644779
申请日：2015-03-11
申请人： IMRA America, Inc.
发明人： Liang Dong , Jun Li , Hugh McKay , Libin Fu , Andrius Marcinkevicius
IPC分类号： G02B6/028 , H01S3/067 , G02B6/02 , H01S3/091 , H01S3/11 , G02B6/14
CPC分类号： G02B6/0288 , G02B6/02009 , G02B6/02333 , G02B6/02357 , G02B6/02361 , G02B6/02366 , G02B6/02371 , G02B6/0283 , G02B6/14 , H01S3/06729 , H01S3/06754 , H01S3/091 , H01S3/11
摘要： Embodiments of optical fiber may include cladding features that include a material (e.g., fluorine-doped silica glass) that may produce a very low relative refractive index difference with respect to cladding material in which the cladding features are disposed. This relative refractive index difference may be characterized by (n1-n2)/n1, where n1 is the index of refraction of the cladding material in which the cladding features are included, and n2 is the index of refraction of the cladding features. In certain embodiments, the relative refractive index difference may be less than about 4.5×10−3. In various embodiments, the configuration of the cladding features including, for example, the size and spacing of the cladding features, can be selected to provide for confinement of the fundamental mode yet leakage for the second mode and higher modes, which may provide mode filtering, single mode propagation, and/or low bend loss.

6. 发明授权

US09588286B2 Optical fiber 有权
标题翻译：光纤
公开(公告)号：US09588286B2
公开(公告)日：2017-03-07
申请号：US14897192
申请日：2014-06-06
申请人： Sumitomo Electric Industries, Ltd.
发明人： Tetsuya Haruna , Masaaki Hirano , Yoshiaki Tamura , Nobuhiro Hikichi
IPC分类号： G02B6/036 , G02B6/028
CPC分类号： G02B6/03644 , G02B6/0283 , G02B6/0286
摘要： The optical fiber includes a core, the first cladding, and second cladding. The core is made of silica based glass containing Cl. The first cladding and the second cladding are made of silica based glass containing fluorine. The refractive index of the first cladding is lower than that of the core. The refractive index of the second cladding is lower than that of the core and higher than that of the first cladding. The second cladding is divided into an outer region having a uniform refractive index and an inner region having a refractive index higher than that of the outer region. The difference ΔP between the maximum refractive index of the inner region and the refractive index of the outer region is 0.02% to 0.10% in terms of relative refractive index with respect to pure silica based glass. The radial thickness R of the inner region is 10 μm to 25 μm.
摘要翻译：光纤包括芯，第一包层和第二包层。芯由含有Cl的二氧化硅基玻璃制成。第一包层和第二包层由含氟的二氧化硅基玻璃制成。第一包层的折射率低于芯的折射率。第二包层的折射率低于芯的折射率，高于第一包层的折射率。第二包层被分成具有均匀折射率的外部区域和折射率高于外部区域的折射率的内部区域。内部区域的最大折射率与外部区域的折射率之间的差ΔP相对于纯二氧化硅系玻璃而言，相对折射率为0.02〜0.10％。内侧区域的径向厚度R为10μm〜25μm。

7. 发明授权

US09429467B2 System for non-contact optical-power measurement 有权
标题翻译：非接触式光功率测量系统
公开(公告)号：US09429467B2
公开(公告)日：2016-08-30
申请号：US14683068
申请日：2015-04-09
申请人： Lockheed Martin Corporation
发明人： Stephen J. Guimond
IPC分类号： G01J1/02 , G01J1/42 , G02B6/024 , G02B6/036 , G02B6/028 , G01J1/04
CPC分类号： G01M11/02 , G01J1/0295 , G01J1/0425 , G01J1/0429 , G01J1/4228 , G01J1/4257 , G02B6/024 , G02B6/0283 , G02B6/03622
摘要： The present invention provides methods and systems for measuring optical power that require neither alterations to the optical fiber nor physical contact with the optical fiber, the system including an optical fiber configured to propagate an optical signal, wherein the optical fiber includes a core and at least a first cladding layer, wherein a portion of the optical signal scatters out of the optical fiber along a length of the optical fiber to form scattered fiber light; a detector system configured to receive the scattered fiber light along the length of the optical fiber and to output a detection signal based on the received scattered fiber light; and a processor configured to receive the detection signal and to determine a power value of the optical signal based on the received detection signal.
摘要翻译：本发明提供了用于测量光功率的方法和系统，其既不需要改变光纤也不需要与光纤进行物理接触，该系统包括被配置为传播光信号的光纤，其中光纤包括核心并且至少第一包层，其中所述光信号的一部分沿着所述光纤的长度从所述光纤中散射以形成散射光纤; 检测器系统，被配置为沿着所述光纤的长度接收散射的光纤，并且基于所接收的散射的光纤光输出检测信号; 以及处理器，被配置为接收所述检测信号并且基于所接收的检测信号来确定所述光信号的功率值。

8. 发明申请

US20160172818A1 OPTICAL AMPLIFIER, OPTICAL AMPLIFYING SYSTEM, WAVELENGTH CONVERTER, AND OPTICAL COMMUNICATION SYSTEM 有权
标题翻译：光放大器，光放大系统，波长转换器和光通信系统
公开(公告)号：US20160172818A1
公开(公告)日：2016-06-16
申请号：US15052315
申请日：2016-02-24
申请人： FURUKAWA ELECTRIC CO., LTD.
发明人： Shigehiro TAKASAKA
IPC分类号： H01S3/108 , H01S3/067 , H01S3/094 , H01S3/10 , G02B6/036 , H01S3/102 , G02B6/27 , H04J14/02 , G02B6/028
CPC分类号： H01S3/1083 , G02B6/02247 , G02B6/0283 , G02B6/0365 , G02B6/2773 , H01S3/06725 , H01S3/06729 , H01S3/06754 , H01S3/094042 , H01S3/1003 , H01S3/1028 , H01S3/2375 , H01S2301/02 , H01S2301/04 , H04B10/294 , H04J14/0221
摘要： An optical amplifier includes: an optical amplifying fiber; and a pump light source that supplies pump light to the optical amplifying fiber, the pump light being used for parametrically amplifying signal light input to the optical amplifying fiber by using a non-linear optical effect of the optical amplifying fiber. The fluctuation of the zero-dispersion wavelength of the optical amplifying fiber in the longitudinal direction is within the limit of 0.5 nm/100 m.
摘要翻译：光放大器包括：光放大光纤; 以及泵浦光源，其向所述光放大光纤提供泵浦光，所述泵浦光用于通过使用所述光放大光纤的非线性光学效应来参数地放大输入到所述光放大光纤的信号光。光放大光纤在长度方向的零色散波长的波动在0.5nm /100μm的范围内。

9. 发明申请

US20160131832A1 OPTICAL FIBER 有权
标题翻译：光纤
公开(公告)号：US20160131832A1
公开(公告)日：2016-05-12
申请号：US14897192
申请日：2014-06-06
申请人： SUMITOMO ELECTRIC INDUSTRIES, LTD.
发明人： Tetsuya HARUNA , Masaaki HIRANO , Yoshiaki TAMURA , Nobuhiro HIKICHI
IPC分类号： G02B6/036 , G02B6/028
CPC分类号： G02B6/03644 , G02B6/0283 , G02B6/0286
摘要： The optical fiber includes a core, the first cladding, and second cladding. The core is made of silica based glass containing Cl. The first cladding and the second cladding are made of silica based glass containing fluorine. The refractive index of the first cladding is lower than that of the core. The refractive index of the second cladding is lower than that of the core and higher than that of the first cladding. The second cladding is divided into an outer region having a uniform refractive index and an inner region having a refractive index higher than that of the outer region. The difference ΔP between the maximum refractive index of the inner region and the refractive index of the outer region is 0.02% to 0.10% in terms of relative refractive index with respect to pure silica based glass. The radial thickness R of the inner region is 10 μm to 25 μm.
摘要翻译：光纤包括芯，第一包层和第二包层。芯由含有Cl的二氧化硅基玻璃制成。第一包层和第二包层由含氟的二氧化硅基玻璃制成。第一包层的折射率低于芯的折射率。第二包层的折射率低于芯的折射率，高于第一包层的折射率。第二包层被分成具有均匀折射率的外部区域和折射率高于外部区域的折射率的内部区域。内部区域的最大折射率与外部区域的折射率之间的差值Dgr; P在相对于纯二氧化硅基玻璃的相对折射率方面为0.02〜0.10％。内侧区域的径向厚度R为10μm〜25μm。

10. 发明授权

US08995051B2 Glass large-core optical fibers 有权
标题翻译：玻璃大芯光纤
公开(公告)号：US08995051B2
公开(公告)日：2015-03-31
申请号：US13440215
申请日：2012-04-05
申请人： Liang Dong , Jun Li , Hugh McKay , Libin Fu , Andrius Marcinkevicius
发明人： Liang Dong , Jun Li , Hugh McKay , Libin Fu , Andrius Marcinkevicius
IPC分类号： H04B10/17 , G02B6/036 , G02B6/02 , G02B6/14 , H01S3/067
CPC分类号： G02B6/0288 , G02B6/02009 , G02B6/02333 , G02B6/02357 , G02B6/02361 , G02B6/02366 , G02B6/02371 , G02B6/0283 , G02B6/14 , H01S3/06729 , H01S3/06754 , H01S3/091 , H01S3/11
摘要： Embodiments of optical fiber may include cladding features that include a material (e.g., fluorine-doped silica glass) that may produce a very low relative refractive index difference with respect to cladding material in which the cladding features are disposed. This relative refractive index difference may be characterized by (n1−n2)/n1, where n1 is the index of refraction of the cladding material in which the cladding features are included, and n2 is the index of refraction of the cladding features. In certain embodiments, the relative refractive index difference may be less than about 4.5×10−3. In various embodiments, the configuration of the cladding features including, for example, the size and spacing of the cladding features, can be selected to provide for confinement of the fundamental mode yet leakage for the second mode and higher modes, which may provide mode filtering, single mode propagation, and/or low bend loss.
摘要翻译：光纤的实施例可以包括包括材料（例如氟掺杂石英玻璃）的包层特征，其可以产生相对于其中设置包层特征的包层材料的非常低的相对折射率差。该相对折射率差可以由（n1-n2）/ n1表征，其中n1是其中包含包层特征的包层材料的折射率，n2是包层特征的折射率。在某些实施方案中，相对折射率差可以小于约4.5×10 -3。在各种实施例中，可以选择包括例如包层特征的尺寸和间隔的包层特征的配置，以提供用于第二模式和更高模式的基模模式的限制，而这可以提供模式滤波，单模传播和/或低弯曲损耗。

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