公开(公告)号：US20180267235A1

公开(公告)日：2018-09-20

申请号：US15754821

申请日：2016-08-24

申请人： Max-Planck-Gesellschaft zur Foerderung der Wissenschafter e.V.

发明人： Philip RUSSELL ,  Patrick UEBEL ,  Michael Henoch FROSZ

IPC分类号： G02B6/02 ,  G02B6/024

CPC分类号： G02B6/02328 ,  G02B6/02342 ,  G02B6/02357 ,  G02B6/02361 ,  G02B6/02366 ,  G02B6/02371 ,  G02B6/024

摘要： A hollow-core fibre (100) of non-bandgap type comprises a hollow core region (10) axially extending along the hollow-core fibre (100) and having a smallest transverse core dimension (D), wherein the core region (10) is adapted for guiding a transverse fundamental core mode and transverse higher order core modes, and an inner cladding region (20) comprising an arrangement of anti-resonant elements (AREs) (21, 21A, 21B) surrounding the core region (10) along the hollow-core fibre (100), each having a smallest transverse ARE dimension (di) and being adapted for guiding transverse ARE modes, wherein the core region (10) and the AREs (21, 21A, 21B) are configured to provide phase matching of the higher order core modes and the ARE modes and the ARE dimension (di) and the core dimension (D) are selected such that a ratio of the ARE and core dimensions (di/D) is approximated to a quotient of zeros of Bessel functions of first kind (ulm,ARE/ulm,core), multiplied with a fitting factor in a range of 0.9 to 1.5, with m being the m-th zero of the Bessel function of first kind of order l, said zeros of the Bessel functions describing the LPlm ARE modes and LPlm higher order core modes, respectively. Furthermore, an optical device (200) including the hollow-core fibre (100) and a method of manufacturing the hollow-core fibre are described.

公开(公告)号：US08902493B2

公开(公告)日：2014-12-02

申请号：US13943582

申请日：2013-07-16

申请人： IMRA America, Inc.

发明人： Liang Dong ,  Martin E. Fermann ,  Hugh McKay ,  Libin Fu ,  Shigeru Suzuki

IPC分类号： H01S3/17 ,  G02B6/02 ,  H01S3/067 ,  H04B10/25 ,  G02B6/036 ,  H01S3/16 ,  H04B10/2507 ,  C03C13/04 ,  G02B6/12

CPC分类号： H01S3/175 ,  C03C13/046 ,  G02B6/02347 ,  G02B6/02366 ,  G02B6/02371 ,  G02B6/036 ,  G02B2006/12038 ,  G02B2006/1209 ,  H01S3/06716 ,  H01S3/1603 ,  H01S3/1616 ,  H01S3/1618 ,  H01S3/163 ,  H01S3/1691 ,  H01S3/1693 ,  H01S3/176 ,  H01S2301/03 ,  H04B10/2507

摘要： Various embodiments described herein comprise a laser and/or an amplifier system including a doped gain fiber having ytterbium ions in a phosphosilicate glass. Various embodiments described herein increase pump absorption to at least about 1000 dB/m-9000 dB/m. The use of these gain fibers provide for increased peak-powers and/or pulse energies. The various embodiments of the doped gain fiber having ytterbium ions in a phosphosilicate glass exhibit reduced photo-darkening levels compared to photo-darkening levels obtainable with equivalent doping levels of an ytterbium doped silica fiber.

摘要翻译： 本文描述的各种实施例包括激光器和/或放大器系统，其包括在磷硅玻璃中具有镱离子的掺杂增益光纤。 本文描述的各种实施例将泵吸收增加至至少约1000dB / m-9000dB / m。 这些增益光纤的使用提供了增加的峰值功率和/或脉冲能量。 磷光硅酸盐玻璃中具有镱离子的掺杂增益纤维的各种实施方案与通过掺镱掺杂二氧化硅纤维的等效掺杂水平可获得的光 - 暗化水平相比，显示出降低的光暗度水平。

公开(公告)号：US08873916B2

公开(公告)日：2014-10-28

申请号：US14054306

申请日：2013-10-15

申请人： IMRA America, Inc.

发明人： Liang Dong ,  William Wong ,  Martin E. Fermann

IPC分类号： G02B6/24 ,  H01S3/00 ,  H01S3/067 ,  G02B6/024 ,  G02B6/02 ,  H01S3/23 ,  G02B6/26 ,  H01S3/30 ,  G02B6/036 ,  G02B6/32 ,  H01S3/02 ,  H01S3/16

CPC分类号： G02B6/02357 ,  G02B6/00 ,  G02B6/02 ,  G02B6/02009 ,  G02B6/02033 ,  G02B6/02361 ,  G02B6/02366 ,  G02B6/02371 ,  G02B6/024 ,  G02B6/036 ,  G02B6/03633 ,  G02B6/03694 ,  G02B6/24 ,  G02B6/26 ,  G02B6/262 ,  G02B6/32 ,  G02F1/0134 ,  H01S3/0057 ,  H01S3/02 ,  H01S3/06708 ,  H01S3/06729 ,  H01S3/06745 ,  H01S3/06754 ,  H01S3/094007 ,  H01S3/1618 ,  H01S3/2308 ,  H01S3/302 ,  H01S2302/00

摘要： Various embodiments include large cores fibers that can propagate few modes or a single mode while introducing loss to higher order modes. Some of these fibers are holey fibers that comprising cladding features such as air-holes. Additional embodiments described herein include holey rods. The rods and fibers may be used in many optical systems including optical amplification systems, lasers, short pulse generators, Q-switched lasers, etc. and may be used for example for micromachining.

摘要翻译： 各种实施例包括可以传播少数模式或单模的大芯纤维，同时将损耗引入高阶模式。 这些纤维中的一些是包含诸如气孔的包层特征的多孔纤维。 本文所述的另外的实施例包括多孔棒。 棒和纤维可用于许多光学系统，包括光学放大系统，激光器，短脉冲发生器，Q开关激光器等，并且可以用于例如微加工。

公开(公告)号：US08374472B2

公开(公告)日：2013-02-12

申请号：US12072869

申请日：2008-02-28

申请人： John Michael Fini ,  Poul Kristensen

发明人： John Michael Fini ,  Poul Kristensen

IPC分类号： G02B6/36 ,  G02B6/02

CPC分类号： G02B6/03688 ,  G02B6/02342 ,  G02B6/02366 ,  G02B6/02371 ,  G02B6/0238 ,  G02B6/03672

摘要： An optical fiber that is relatively insensitive to bend loss comprises a core region and a cladding region configured to support and guide the propagation of light in a fundamental transverse mode, the cladding region including (i) an outer cladding region having a refractive index less than that of the core region, (ii) an annular cladding pedestal region having a refractive index higher than that of the outer cladding region and comparable to that of the core region, and (iii) an annular cladding inner trench region disposed between the core region and the pedestal region, the inner trench region having a refractive index less than that of the outer cladding region. In one embodiment, the fiber also includes a (iv) an annular cladding outer trench region disposed between the pedestal region and the outer cladding region, the outer trench region having a refractive index less than that of the outer cladding region. In addition, to suppress HOMs the pedestal region is configured to resonantly couple at least one other transverse mode of the core region to at least one transverse mode of the pedestal region. Such fiber is advantageously used as access fiber, but may have other applications, such as sensor fiber.

公开(公告)号：US20110194816A1

公开(公告)日：2011-08-11

申请号：US13035412

申请日：2011-02-25

申请人： Malte Kumkar ,  Rudolf Huber

发明人： Malte Kumkar ,  Rudolf Huber

IPC分类号： G02B6/036 ,  G02B6/26

CPC分类号： G02B6/02366 ,  G02B6/0229 ,  G02B6/02357 ,  G02B6/02371 ,  G02B6/14

摘要： An optical fiber is designed to transmit high-power laser radiation. The optical fiber includes a fiber core, and an inner fiber cladding surrounding the fiber core, where the inner fiber cladding is configured to carry the laser radiation in the fiber core. The optical fiber also includes a first outer fiber cladding surrounding the inner fiber cladding. The first outer fiber cladding has a capillary-free longitudinal section and has a smaller refractive index than the refractive index of the inner fiber cladding. The optical fiber includes an outermost fiber cladding surrounding the first outer fiber cladding. The outermost fiber cladding has scattering centers that surround the capillary-free longitudinal section, where the scattering centers scatter laser radiation emerging from the inner fiber cladding through the first outer fiber cladding along the capillary-free section.

摘要翻译： 光纤被设计用于传输大功率激光辐射。 光纤包括纤维芯和围绕纤维芯的内部纤维包层，其中内部纤维包层被配置为在纤维芯中携带激光辐射。 光纤还包括围绕内部光纤包层的第一外部光纤包层。 第一外部纤维包层具有无毛细管的纵向截面并且具有比内部纤维包层的折射率更小的折射率。 光纤包括围绕第一外部纤维包层的最外面的光纤包层。 最外面的光纤包层具有围绕无毛细管的纵向部分的散射中心，其中散射中心沿着无毛细管部分通过第一外部光纤包层从内部光纤包层射出的激光辐射散射。

公开(公告)号：US20110194812A1

公开(公告)日：2011-08-11

申请号：US12855116

申请日：2010-08-12

申请人： Gilles Melin ,  Simon Lempereur ,  Anne Fleureau ,  Vincent Couderc ,  Philippe Laproux ,  Alexandre Kudlinski

发明人： Gilles Melin ,  Simon Lempereur ,  Anne Fleureau ,  Vincent Couderc ,  Philippe Laproux ,  Alexandre Kudlinski

IPC分类号： G02B6/26

CPC分类号： G02B6/02347 ,  G02B6/02333 ,  G02B6/02371 ,  G02B6/02376 ,  G02F2001/3528

摘要： A microstructured optical fiber for generating broadband white light having a core doped with germanium and silica cladding surrounding the core, the cladding including a plurality of holes arranged in the form of a regular mesh, wherein the diameter F of a hole in the cladding, the pitch L between the respective centers of two neighboring holes in the cladding, and the refractive index difference Dn between the germanium-doped fiber core and the silica of the cladding are such that the fiber can generate white light on the fundamental mode over a wavelength band having a width of at least 1000 nm.

摘要翻译： 一种用于产生宽带白光的微结构光纤，其具有掺杂有锗的芯和围绕芯的二氧化硅包层，所述包层包括以规则网格形式布置的多个孔，其中包层中的孔的直径F， 包层中两个相邻孔的各个中心之间的间距L以及掺铒光纤芯与包层的二氧化硅之间的折射率差Dn使得光纤能够在波长带上的基模上产生白光 具有至少1000nm的宽度。

公开(公告)号：US07953309B2

公开(公告)日：2011-05-31

申请号：US12261815

申请日：2008-10-30

申请人： Atsushi Mori ,  Masao Kato ,  Kouji Enbutsu ,  Shinichi Aozasa ,  Kiyoshi Oikawa ,  Takashi Kurihara ,  Kazuo Fujiura ,  Makoto Shimizu ,  Kouji Shikano

发明人： Atsushi Mori ,  Masao Kato ,  Kouji Enbutsu ,  Shinichi Aozasa ,  Kiyoshi Oikawa ,  Takashi Kurihara ,  Kazuo Fujiura ,  Makoto Shimizu ,  Kouji Shikano

IPC分类号： G02B6/032 ,  H04J14/02 ,  C03B37/022

CPC分类号： C03B37/01211 ,  C03B37/0122 ,  C03B37/01268 ,  C03B37/02781 ,  C03B2201/30 ,  C03B2201/60 ,  C03B2201/86 ,  C03B2203/10 ,  C03B2203/12 ,  C03B2203/14 ,  C03B2203/16 ,  C03B2203/22 ,  C03B2203/42 ,  C03B2205/10 ,  C03C13/048 ,  G02B6/02028 ,  G02B6/02214 ,  G02B6/02252 ,  G02B6/02266 ,  G02B6/02276 ,  G02B6/02333 ,  G02B6/02338 ,  G02B6/02347 ,  G02B6/02361 ,  G02B6/02366 ,  G02B6/02371 ,  G02B6/03627 ,  G02B6/03633 ,  G02B6/03644

摘要： An optical fiber, which has a zero-material dispersion wavelength equal to or greater than 2 μm, and a high nonlinear susceptibility χ3 equal to or greater than 1×10−12 esu, and uses tellurite glass having sufficient thermal stability for processing into a low loss fiber, employs a PCF structure or HF structure having strong confinement into a core region. This enables light to propagate at a low loss. The size and geometry of air holes formed in the core region, and the spacing between adjacent air holes make it possible to control the zero dispersion wavelength within an optical telecommunication window (1.2-1.7 μm), and to achieve large nonlinearity with a nonlinear coefficient γ equal to or greater than 500 W−1 km−1.

摘要翻译： 具有等于​​或大于2μm的零材料色散波长和等于或大于1×10-12埃的高非线性磁化率χ3的光纤，并且使用具有足够热稳定性的碲化物玻璃加工成 低损耗光纤采用具有较强限制的核心区域的PCF结构或HF结构。 这使得光以低损耗传播。 在核心区域形成的空气孔的尺寸和几何形状以及相邻气孔之间的间隔使得可以控制光通信窗口（1.2-1.7μm）内的零色散波长，并且通过非线性系数获得大的非线性 γ等于或大于500W-1km-1。

公开(公告)号：US07865051B2

公开(公告)日：2011-01-04

申请号：US12217215

申请日：2008-07-02

申请人： John Michael Fini

发明人： John Michael Fini

IPC分类号： G02B6/032 ,  G02B6/036

CPC分类号： G02B6/02328 ,  G02B6/02338 ,  G02B6/02371 ,  G02B6/0239 ,  G02B6/105

摘要： In accordance with one aspect of the invention, the core and cladding regions of a hollow-core optical fiber are configured so that a signal mode is coupled to a cladding mode in order to exploit polarization-dependent properties. In general, the fiber comprises a hollow-core region surrounded by a cladding region, which includes a localized hollow-waveguide region. The core and waveguide regions are configured so that the coupling between a signal mode in the core region and a cladding mode in the waveguide region are phase-matched for efficient coupling, and the phase-matching condition is made polarization-dependent to provide improved control of the fiber's polarization dependent properties.

摘要翻译： 根据本发明的一个方面，中空芯光纤的芯和包层区被配置为使得信号模式耦合到包层模式以便利用偏振相关性质。 通常，纤维包括由包层区域围绕的中空区域，其包括局部中空波导区域。 核心和波导区域被配置为使得芯区域中的信号模式和波导区域中的包层模式之间的耦合被相位匹配用于有效耦合，并且相位匹配条件被取决于偏振，以提供改进的控制 的纤维偏振相关性质。

公开(公告)号：US20100322575A1

公开(公告)日：2010-12-23

申请号：US12820950

申请日：2010-06-22

申请人： Liang Dong ,  William Wong ,  Martin E. Fermann

发明人： Liang Dong ,  William Wong ,  Martin E. Fermann

IPC分类号： G02B6/02

CPC分类号： G02B6/02357 ,  G02B6/00 ,  G02B6/02 ,  G02B6/02009 ,  G02B6/02033 ,  G02B6/02361 ,  G02B6/02366 ,  G02B6/02371 ,  G02B6/024 ,  G02B6/036 ,  G02B6/03633 ,  G02B6/03694 ,  G02B6/24 ,  G02B6/26 ,  G02B6/262 ,  G02B6/32 ,  G02F1/0134 ,  H01S3/0057 ,  H01S3/02 ,  H01S3/06708 ,  H01S3/06729 ,  H01S3/06745 ,  H01S3/06754 ,  H01S3/094007 ,  H01S3/1618 ,  H01S3/2308 ,  H01S3/302 ,  H01S2302/00

摘要： Various embodiments include large cores fibers that can propagate few modes or a single mode while introducing loss to higher order modes. Some of these fibers are holey fibers that comprising cladding features such as air-holes. Additional embodiments described herein include holey rods. The rods and fibers may be used in many optical systems including optical amplification systems, lasers, short pulse generators, Q-switched lasers, etc. and may be used for example for micromachining.

摘要翻译： 各种实施例包括可以传播少数模式或单模的大芯纤维，同时将损耗引入高阶模式。 这些纤维中的一些是包含诸如气孔的包层特征的多孔纤维。 本文所述的另外的实施例包括多孔棒。 棒和纤维可用于许多光学系统，包括光学放大系统，激光器，短脉冲发生器，Q开关激光器等，并且可以用于例如微加工。

公开(公告)号：US07734137B2

公开(公告)日：2010-06-08

申请号：US11886844

申请日：2006-03-23

申请人： Charlotte R H Bennett ,  Terence J Shepherd ,  Laurent Michaille ,  David M Taylor

发明人： Charlotte R H Bennett ,  Terence J Shepherd ,  Laurent Michaille ,  David M Taylor

IPC分类号： G02B6/02 ,  G02B6/032 ,  G02B6/036 ,  C03B37/02 ,  C03B37/028 ,  C03B37/025

CPC分类号： C03B37/01222 ,  C03B37/0122 ,  C03B37/02781 ,  C03B2203/12 ,  C03B2203/14 ,  C03B2203/18 ,  C03B2203/34 ,  C03B2203/42 ,  G02B6/02042 ,  G02B6/02333 ,  G02B6/02338 ,  G02B6/02347 ,  G02B6/02371 ,  G02B6/02376 ,  G02B6/024

摘要： A multicore optical fibre includes a microstructured cladding material formed from a plurality of cladding elements arranged in an array and each cladding element comprising at least two different materials each having different refractive indices, and a plurality of core elements formed within interstitial regions between adjacent cladding elements. A fibre so formed may have a large number of cores per unit cross-sectional area as compared with prior art fibres, and thus allows the fibre to have relatively short distances between adjacent cores for a given required inter-core isolation. A fibre so formed has utility in many areas requiring high core density, such as inter-chip optical communication, or optical communication between circuit boards.

摘要翻译： 多芯光纤包括由布置成阵列的多个包层元件形成的微结构化包层材料，并且每个包层元件包括至少两种不同材料，每种不同的材料各自具有不同的折射率，并且多个芯元件形成在相邻包层元件之间的间隙区域内 。 与现有技术的纤维相比，这样形成的纤维可以具有与每个单位横截面积大的芯，并且因此允许纤维在相邻芯之间具有相对短的距离，用于给定的所需的芯间隔离。 如此形成的光纤在许多需要高核心密度的领域中具有实用性，例如芯片间通信或电路板之间的光通信。