公开(公告)号：US09329335B2

公开(公告)日：2016-05-03

申请号：US14725315

申请日：2015-05-29

Applicant: OFS Fitel, LLC

Inventor： Kasyapa Balemarthy ,  Roman Shubochkin ,  Durgesh S Vaidya ,  Man F Yan

IPC: G02B6/028 ,  C03B37/018 ,  C03B37/027

CPC classification number: G02B6/0288 ,  C03B37/018 ,  C03B37/01807 ,  C03B37/027 ,  C03B2201/12 ,  C03B2201/28 ,  C03B2201/31 ,  C03B2203/22 ,  C03B2203/223 ,  C03B2203/26 ,  G02B6/02009 ,  G02B6/0281

Abstract: Described is a design approach to fabricating broadband graded-index multimode fibers where the concentration profile of at least one dopant in the core region includes at least one flat-zone. Designs for use in CWDM applications are also disclosed.

Abstract translation: 描述了制造宽带渐变折射率多模光纤的设计方法，其中核心区域中的至少一种掺杂剂的浓度分布包括至少一个平坦区域。 还公开了在CWDM应用中使用的设计。

公开(公告)号：US09110220B2

公开(公告)日：2015-08-18

申请号：US13943015

申请日：2013-07-16

Applicant: Corning Incorporated

Inventor： Scott Robertson Bickham ,  Robert Arnold Knowlton ,  Kimberly Wilbert Smith

IPC: G02B6/28 ,  G02B6/028 ,  C03B37/014 ,  C03C13/04 ,  C03B37/027

CPC classification number: G02B6/0288 ,  C03B37/01446 ,  C03B37/01453 ,  C03B37/027 ,  C03B2201/10 ,  C03B2201/12 ,  C03B2201/28 ,  C03B2201/31 ,  C03B2201/32 ,  C03B2203/22 ,  C03B2203/23 ,  C03B2203/26 ,  C03C13/04 ,  G02B6/03627 ,  G02B6/03633 ,  Y02P40/57

Abstract: A multimode optical fiber, and a method of making the fiber, are provided according to the following steps and elements: forming a core preform with a graded refractive index that includes silica and an up-dopant; drawing the core preform into a core cane; forming an inner annular segment preform that includes silica soot and an up-dopant surrounding the core cane; and forming a depressed-index annular segment preform that includes silica soot surrounding the inner annular segment preform. The method also includes the steps: forming an outer annular segment preform that includes silica soot and an up-dopant surrounding the depressed-index annular segment preform; doping the inner, depressed-index and outer annular segment preforms simultaneously or nearly simultaneously with a down-dopant; and consolidating the segment preforms simultaneously or nearly simultaneously into inner, depressed-index and outer annular segments.

Abstract translation: 根据以下步骤和元件提供多模光纤和制造光纤的方法：形成具有包括二氧化硅和上掺杂剂的分级折射率的纤芯预制棒; 将核心预制件拉成一个核心的手杖; 形成包括二氧化硅烟灰和围绕所述芯棒的上掺杂物的内环形段预制件; 以及形成包含围绕所述内环形段预制件的二氧化硅烟灰的凹陷折射率环形段预制件。 该方法还包括以下步骤：形成包括二氧化硅烟灰的外环形段预制件和围绕凹陷折射率环形段预制件的上掺杂物; 与下掺杂剂同时或几乎同时掺杂内部，凹陷指数和外部环形段预成型件; 并将片段预制件同时或几乎同时地固定到内部，凹陷折射率和外部环形片段中。

公开(公告)号：US09025925B2

公开(公告)日：2015-05-05

申请号：US13806160

申请日：2011-07-08

Applicant: Benoôt Cadier ,  Arnaud Laurent ,  Thierry Robin ,  Sylvain Girard ,  Claude Marcandella

Inventor： Benoôt Cadier ,  Arnaud Laurent ,  Thierry Robin ,  Sylvain Girard ,  Claude Marcandella

IPC: G02B6/036 ,  C03B37/018 ,  G02B6/02 ,  G02B6/024 ,  H01S3/067 ,  H01S3/094 ,  H01S3/16

CPC classification number: C03B37/01838 ,  C03B2201/12 ,  C03B2201/28 ,  C03B2201/34 ,  G02B6/02295 ,  G02B6/024 ,  G02B6/036 ,  G02B6/03611 ,  H01S3/0672 ,  H01S3/06729 ,  H01S3/094007 ,  H01S3/09403 ,  H01S3/1608 ,  H01S3/1618

Abstract: A radiation-resistant optical fiber includes at least one core and at least one first cladding surrounding the core. The core includes a phosphosilicate matrix, the core being rare-earth doped, the rare earth being chosen from erbium, ytterbium, neodymium, thulium or erbium-ytterbium of thulium-holmium codoped and the core is cerium codoped. Also described is a method for radiation-hardening an optical fiber including the core having a phosphosilicate matrix, the core being rare-earth doped, the rare earth being chosen from erbium, ytterbium, neodymium and thulium, or erbium-ytterbium or thulium-holmium codoped, and including a step of cerium codoping the core of the fiber.

Abstract translation: 耐辐射光纤包括至少一个芯和围绕芯的至少一个第一包层。 核心包括磷硅酸盐基质，核心是稀土掺杂的，稀土选自碲钬共掺的铒，镱，钕，ium或铒镱，核心是铈共掺杂的。 还描述了一种用于辐射硬化包括具有磷硅酸盐基体的芯的光纤的方法，所述芯是稀土掺杂的，稀土选自铒，镱，钕和ium，或铒镱或碲钬 并且包括将纤维的核心的铈共掺杂的步骤。

公开(公告)号：US20150023642A1

公开(公告)日：2015-01-22

申请号：US13943015

申请日：2013-07-16

Applicant: Corning Incorporated

Inventor： Scott Robertson Bickham ,  Robert Arnold Knowlton ,  Kimberly Wilbert Smith

IPC: G02B6/028 ,  C03B37/027 ,  C03B37/014

CPC classification number: G02B6/0288 ,  C03B37/01446 ,  C03B37/01453 ,  C03B37/027 ,  C03B2201/10 ,  C03B2201/12 ,  C03B2201/28 ,  C03B2201/31 ,  C03B2201/32 ,  C03B2203/22 ,  C03B2203/23 ,  C03B2203/26 ,  C03C13/04 ,  G02B6/03627 ,  G02B6/03633 ,  Y02P40/57

Abstract: A multimode optical fiber, and a method of making the fiber, are provided according to the following steps and elements: forming a core preform with a graded refractive index that includes silica and an up-dopant; drawing the core preform into a core cane; forming an inner annular segment preform that includes silica soot and an up-dopant surrounding the core cane; and forming a depressed-index annular segment preform that includes silica soot surrounding the inner annular segment preform. The method also includes the steps: forming an outer annular segment preform that includes silica soot and an up-dopant surrounding the depressed-index annular segment preform; doping the inner, depressed-index and outer annular segment preforms simultaneously or nearly simultaneously with a down-dopant; and consolidating the segment preforms simultaneously or nearly simultaneously into inner, depressed-index and outer annular segments.

Abstract translation: 根据以下步骤和元件提供多模光纤和制造光纤的方法：形成具有包括二氧化硅和上掺杂剂的分级折射率的纤芯预制棒; 将核心预制件拉成一个核心的手杖; 形成包括二氧化硅烟灰和围绕所述芯棒的上掺杂物的内环形段预制件; 以及形成包含围绕所述内环形段预制件的二氧化硅烟灰的凹陷折射率环形段预制件。 该方法还包括以下步骤：形成包括二氧化硅烟灰的外环形段预制件和围绕凹陷折射率环形段预制件的上掺杂物; 与下掺杂剂同时或几乎同时掺杂内部，凹陷指数和外部环形段预成型件; 并将片段预制件同时或几乎同时地固定到内部，凹陷折射率和外部环形片段中。

公开(公告)号：US20140341520A1

公开(公告)日：2014-11-20

申请号：US14448156

申请日：2014-07-31

Applicant: Pieter Matthijse ,  Mattheus Jacobus Nicolaas Van Stralen ,  Mark Peter Marie Jetten ,  Gert-Jan Krabshuis

Inventor： Pieter Matthijse ,  Mattheus Jacobus Nicolaas Van Stralen ,  Mark Peter Marie Jetten ,  Gert-Jan Krabshuis

IPC: G02B6/02 ,  G02B6/036 ,  G02B6/028

CPC classification number: G02B6/02047 ,  C03B37/01807 ,  C03B2201/10 ,  C03B2201/12 ,  C03B2201/24 ,  C03B2201/28 ,  C03B2201/30 ,  C03B2201/31 ,  C03B2201/32 ,  C03B2201/40 ,  C03B2201/42 ,  C03B2203/26 ,  G02B6/0281 ,  G02B6/0288 ,  G02B6/036

Abstract: The invention relates to a multimode optical fibre having a refractive index profile, comprising a light-guiding core surrounded by one or more cladding layers. The present invention furthermore relates to an optical communication system comprising a transmitter, a receiver and a multimode optical fibre.

Abstract translation: 本发明涉及一种具有折射率分布的多模光纤，包括由一个或多个包覆层包围的导光芯。 本发明还涉及一种包括发射机，接收机和多模光纤的光通信系统。

公开(公告)号：US08675275B2

公开(公告)日：2014-03-18

申请号：US12944422

申请日：2010-11-11

Applicant: David Boivin ,  Alain Pastouret ,  Ekaterina Burov ,  Cedric Gonnet

Inventor： David Boivin ,  Alain Pastouret ,  Ekaterina Burov ,  Cedric Gonnet

IPC: H04B10/17 ,  G02B6/02

CPC classification number: C03C3/06 ,  C03B37/01838 ,  C03B2201/12 ,  C03B2201/28 ,  C03B2201/31 ,  C03B2201/34 ,  C03B2201/36 ,  C03C4/0071 ,  C03C4/10 ,  C03C4/12 ,  C03C13/046 ,  C03C14/004 ,  C03C14/006 ,  C03C2201/31 ,  C03C2201/32 ,  C03C2201/3476 ,  C03C2201/3482 ,  C03C2201/3488 ,  C03C2201/36 ,  C03C2203/40 ,  H01S3/06729

Abstract: The present invention embraces an amplifying optical fiber having a central core adapted to convey and amplify an optical signal and a cladding that surrounds the central core to confine the optical signal conveyed in the central core. The central core is formed of a core matrix in which nanoparticles are present. The nanoparticles themselves include a nanoparticle matrix and rare-earth-dopant elements. The core matrix may also include one or more additional dopants (i.e., in addition to nanoparticles). The amplifying optical fiber possesses a small numerical aperture and is suitable for use in high-pump-power applications without a degraded gain shape.

Abstract translation: 本发明包括具有中心芯的放大光纤，该中心芯适于传送和放大光信号和围绕中心芯的包层，以限制在中心芯中传送的光信号。 中心芯由其中存在纳米颗粒的核心基质形成。 纳米颗粒本身包括纳米颗粒基质和稀土掺杂元素。 核心基质还可以包括一种或多种另外的掺杂剂（即，除了纳米颗粒之外）。 放大光纤具有小的数值孔径，并且适用于没有劣化增益形状的高泵浦功率应用。

公开(公告)号：US08649650B2

公开(公告)日：2014-02-11

申请号：US13260415

申请日：2010-03-29

Applicant: Ranjan Sen ,  Anirban Dhar ,  Mukul Chandra Paul ,  Himadri Sekhar Maiti

Inventor： Ranjan Sen ,  Anirban Dhar ,  Mukul Chandra Paul ,  Himadri Sekhar Maiti

IPC: G02B6/00 ,  C03B37/075 ,  C03C13/00

CPC classification number: C03B37/01838 ,  C03B2201/28 ,  C03B2201/31 ,  C03B2201/34 ,  C03B2201/54 ,  C03C3/095 ,  C03C4/0071 ,  C03C13/046 ,  Y02P40/57

Abstract: The present invention provides a method of making rare earth (RE) doped optical fiber using BaO as co-dopant instead of Al or P commonly used for incorporation of the RE in silica glass by MCVD and solution doping technique. The method comprises deposition of particulate layer of GeO2 doped SiO2 with or without small P2O5 for formation of the core and solution doping by soaking the porous soot layer into an aqueous solution of RE and Ba containing salt. This is followed by dehydration and sintering of the soaked deposit, collapsing at a high temperature to produce the preform and drawing of fibers of appropriate dimension. The use of Ba-oxide enables to eliminate unwanted core-clad interface defect which is common in case of Al doped fibers. The fibers also show good RE uniformity, relatively low optical loss in the 0.6-1.6 μm wavelength region and good optical properties suitable for their application in amplifiers, fiber lasers and sensor devices.

Abstract translation: 本发明提供一种使用BaO作为共掺杂剂代替通常用于通过MCVD和溶液掺杂技术将石英玻璃中的RE掺入的Al或P的掺杂稀土（RE）掺杂光纤的方法。 该方法包括沉积具有或不具有小的P 2 O 5的GeO 2掺杂的SiO 2的颗粒层以形成芯并通过将多孔烟灰层浸入含RE和Ba的盐的水溶液中来进行溶液掺杂。 随后将浸渍的沉积物脱水和烧结，在高温下塌陷以制备预制件并拉出适当尺寸的纤维。 使用Ba氧化物能够消除在Al掺杂光纤的情况下常见的不需要的芯包层界面缺陷。 光纤还具有良好的均匀性，0.6-1.6μm波长区域的光损耗相对较低，适用于放大器，光纤激光器和传感器设备的良好的光学性能。

公开(公告)号：US20130336343A1

公开(公告)日：2013-12-19

申请号：US13973051

申请日：2013-08-22

Applicant: Furukawa Electric Co., Ltd.

Inventor： Ryo MIYABE ,  Keiichi Aiso

IPC: H01S3/067 ,  G02B6/036

CPC classification number: H01S3/06716 ,  C03B37/01211 ,  C03B37/01433 ,  C03B2201/12 ,  C03B2201/28 ,  C03B2201/36 ,  C03B2201/50 ,  C03B2201/54 ,  C03B2203/223 ,  C03B2203/23 ,  G02B6/03633 ,  H01S3/06733 ,  H01S3/0675 ,  H01S3/06754 ,  H01S3/094007 ,  H01S3/1618 ,  H01S3/1693 ,  H01S3/176

Abstract: An optical fiber has: a core made of silica glass in which a rare earth element and aluminum have been added; an inner cladding layer that is formed around the core, is made of silica glass in which at least any one of an alkali metal and an alkali earth metal has been added, and has a refractive index lower than a refractive index of the core; and an outer cladding layer that is formed around the inner cladding layer and has a refractive index lower than the refractive index of the inner cladding layer.

Abstract translation: 光纤具有：添加了稀土元素和铝的石英玻璃制成的芯; 在芯部周围形成的内包层由石英玻璃制成，其中添加了碱金属和碱土金属中的至少一种，并且折射率低于芯的折射率; 以及外包层，其形成在所述内包层周围并且具有低于所述内包层的折射率的折射率。

公开(公告)号：US08606065B2

公开(公告)日：2013-12-10

申请号：US13121361

申请日：2009-08-21

Applicant: Haruo Ooizumi ,  Masatoshi Tanaka ,  Masayoshi Hachiwaka ,  Takaharu Kinoshita ,  Mamoru Hashimoto

Inventor： Haruo Ooizumi ,  Masatoshi Tanaka ,  Masayoshi Hachiwaka ,  Takaharu Kinoshita ,  Mamoru Hashimoto

IPC: G02B6/036

CPC classification number: G02B6/03683 ,  C03B37/01446 ,  C03B2201/08 ,  C03B2201/21 ,  C03B2201/23 ,  C03B2201/28 ,  C03B2201/31 ,  C03B2203/23 ,  G02B6/03694 ,  G02B6/14

Abstract: An optical fiber (10) includes: a core (11); a first cladding (12) surrounding the core (11) and having a lower refractive index than the core (11); and a second cladding (13) surrounding the first cladding (12) and having a lower refractive index than the first cladding (12). The first cladding (12) is doped with light attenuating dopant so that a concentration of the light attenuating dopant in the first cladding (12) increases from an inner surface of the first cladding (12) toward an outer surface of the first cladding (12).

Abstract translation: 光纤（10）包括：芯（11）; 围绕所述芯部（11）并且具有比所述芯部（11）更低折射率的第一包层（12）; 以及围绕所述第一包层（12）并且具有比所述第一包层（12）更低折射率的第二包层（13）。 第一包层（12）掺杂有光衰减掺杂剂，使得第一包层（12）中的光衰减掺杂剂的浓度从第一包层（12）的内表面朝向第一包层（12）的外表面增加 ）。

公开(公告)号：US08542968B2

公开(公告)日：2013-09-24

申请号：US13493264

申请日：2012-06-11

Applicant: Liang Dong ,  Xiang Peng

Inventor： Liang Dong ,  Xiang Peng

IPC: G02B6/028

CPC classification number: G02B6/03616 ,  C03B37/01217 ,  C03B37/0122 ,  C03B37/01838 ,  C03B2201/10 ,  C03B2201/28 ,  C03B2201/34 ,  C03B2203/14 ,  C03B2203/23 ,  C03B2203/30 ,  C03B2203/42 ,  C03C3/06 ,  C03C3/097 ,  C03C4/0071 ,  C03C13/046 ,  C03C2201/10 ,  C03C2201/28 ,  C03C2201/34 ,  C03C2201/3488 ,  G02B6/024 ,  G02B6/032 ,  G02B6/03622 ,  G02B6/03633 ,  G02B6/03638 ,  H01S3/06712 ,  H01S3/06716 ,  H01S3/06741 ,  H01S3/06754 ,  H01S3/094007 ,  H01S3/1618

Abstract: Various embodiments described herein include rare earth doped glass compositions that may be used in optical fiber and rods having large core sizes. Such optical fibers and rods may be employed in fiber lasers and amplifiers. The index of refraction of the glass may be substantially uniform and may be close to that of silica in some embodiments. Possible advantages to such features include reduction of formation of additional waveguides within the core, which becomes increasingly a problem with larger core sizes.