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1. 发明申请

WO2013023045A1 FIBER ASSEMBLY FOR ALL-FIBER DELIVERY OF HIGH ENERGY FEMTOSECOND PULSES 审中-公开
标题翻译：用于全光纤传输高能量有限元脉冲的光纤组件
公开(公告)号：WO2013023045A1
公开(公告)日：2013-02-14
申请号：PCT/US2012/050126
申请日：2012-08-09
申请人： OFS FITEL, LLC , JESPERSON, Kim , GRUNER-NIELSEN, Lars
发明人： JESPERSON, Kim , GRUNER-NIELSEN, Lars
IPC分类号： G02B6/26
CPC分类号： H01S3/2308 , G02B6/4296 , H01S3/0057 , H01S3/06725 , H01S3/06741 , H01S3/0804 , H01S3/1611 , H01S3/1618
摘要： Embodiments of the present invention are generally related to a fiber assembly, for example, in a chirped pulse amplification system, for all-fiber delivery of high energy femtosecond pulses. More specifically, embodiments of the present invention relate to a system and method for improving dispersion management when using hollow core photonic bandgap fibers for pulse compression. In one embodiment of the present invention, a fiber assembly comprises: an optical laser oscillator; a first fiber section for stretching the pulses from the laser oscillator, the first fiber section comprising a high order mode fiber; and a second fiber section for compressing the stretched pulses, connected to the first fiber section via a splice, the second fiber section comprising a hollow core photonic bandgap fiber; wherein the fiber assembly outputs a pulse compression at less than 200 fs.
摘要翻译：本发明的实施例通常涉及光纤组件，例如在啁啾脉冲放大系统中，用于全光纤输送高能飞秒脉冲。更具体地，本发明的实施例涉及一种用于在使用空心光子带隙光纤进行脉冲压缩时改进色散管理的系统和方法。在本发明的一个实施例中，光纤组件包括：光学激光振荡器; 用于从激光振荡器拉伸脉冲的第一光纤部分，第一光纤部分包括高阶模光纤; 以及第二纤维部分，用于压缩经由接头连接到第一纤维部分的拉伸脉冲，第二纤维部分包括中空光子带隙光纤; 其中所述光纤组件以小于200fs输出脉冲压缩。

2. 发明申请

WO2012161809A1 GRADED-INDEX FEW-MODE FIBER DESIGNS FOR SPATIAL MULTIPLEXING 审中-公开
标题翻译：用于空间多路复用的分级索引模式光纤设计
公开(公告)号：WO2012161809A1
公开(公告)日：2012-11-29
申请号：PCT/US2012/026662
申请日：2012-02-24
申请人： OFS FITEL, LLC , GRUNER-NIELSEN, Lars , LINGLE, Robert, L. , MCCURDY, Alan , PECKHAM, David, W. , SUN, Yi
发明人： GRUNER-NIELSEN, Lars , LINGLE, Robert, L. , MCCURDY, Alan , PECKHAM, David, W. , SUN, Yi
IPC分类号： G02B6/02
CPC分类号： G02B6/02042 , G02B6/02 , G02B6/02019 , G02B6/0281 , G02B6/0288 , G02B6/03611 , G02B6/03627 , G02B6/03633 , G02B6/0365 , G02B6/03666 , G02B6/03683 , G02B6/262
摘要： A few-mode optical fiber comprises a core surrounded by a cladding, having a graded index profile that is structured to support propagation of a plurality of desired signal-carrying modes, while suppressing undesired modes. The core and cladding are configured such that the undesired modes have respective effective indices that are close to. or less than, the cladding index such that the undesired modes are leaky modes. The index spacing between the desired mode having the lowest effective index and the leaky mode with the highest effective index is sufficiently large so as to substantially prevent coupling therebetween.
摘要翻译：多模光纤包括由包层围绕的芯，具有渐变的折射率分布，其被构造为支持多个期望的信号承载模式的传播，同时抑制不期望的模式。芯和覆层被配置为使得不期望的模式具有接近的相应的有效索引。或小于包层指数，使得不需要的模式是泄漏模式。具有最低有效指数的期望模式与具有最高有效指数的泄漏模式之间的指数间隔足够大，以便基本上防止它们之间的耦合。

3. 发明申请

WO2012161810A1 STEP-INDEX FEW-MODE FIBER DEIGNS FOR SPATIAL MULTIPLEXING 审中-公开
标题翻译：用于空间多路复用的步骤指示模式光纤检测
公开(公告)号：WO2012161810A1
公开(公告)日：2012-11-29
申请号：PCT/US2012/026663
申请日：2012-02-24
申请人： OFS FITEL, LLC , GRUNER-NIELSEN, Lars , LINGLE, Robert, L. , MCCURDY, Alan , PECKHAM, David, W. , TOKLE, Torger
发明人： GRUNER-NIELSEN, Lars , LINGLE, Robert, L. , MCCURDY, Alan , PECKHAM, David, W. , TOKLE, Torger
IPC分类号： G02B6/02
CPC分类号： G02B6/02042 , G02B6/02 , G02B6/02019 , G02B6/0281 , G02B6/0288 , G02B6/03611 , G02B6/03627 , G02B6/03633 , G02B6/0365 , G02B6/03666 , G02B6/03683 , G02B6/262
摘要： A few-mode optical fiber comprises a core surrounded by a cladding, having a step index profile that is structured to support propagation of a plurality of desired signal-carrying modes, while suppressing undesired modes. The core and cladding are configured such that the undesired modes have respective effective indices that are close to. or less than, the cladding index such that the undesired modes are leaky modes. The index spacing between the desired mode having the lowest effective index and the leaky mode with the highest effective index is sufficiently large so as to substantially prevent coupling therebetween.
摘要翻译：多模光纤包括由包层围绕的芯，其具有构造成支持多种所需信号承载模式的传播的阶跃折射率分布，同时抑制不期望的模式。芯和覆层被配置为使得不期望的模式具有接近的相应的有效索引。或小于包层指数，使得不需要的模式是泄漏模式。具有最低有效指数的期望模式与具有最高有效指数的泄漏模式之间的指数间隔足够大，以便基本上防止它们之间的耦合。

4. 发明申请

WO2013101429A1 OPTICAL MODE CONVERSION BY NONLINEAR EFFECTS 审中-公开
标题翻译：非线性效应的光学模式转换
公开(公告)号：WO2013101429A1
公开(公告)日：2013-07-04
申请号：PCT/US2012/068259
申请日：2012-12-06
申请人： OFS FITEL, LLC , CORNELL UNIVERSITY , GRUNER-NIELSEN, Lars , JAKOBSEN, Dan, P. , PEDERSEN, Martin, E.V. , XU, Chunhui , CHENG, Ji
发明人： GRUNER-NIELSEN, Lars , JAKOBSEN, Dan, P. , PEDERSEN, Martin, E.V. , XU, Chunhui , CHENG, Ji
IPC分类号： G02F2/00
CPC分类号： G02B6/14 , G02F1/3536 , G02F1/365 , G02F2201/02 , G02F2201/05
摘要： Embodiments of the present invention generally relate to optical mode conversion by nonlinear effects. More specifically, embodiments of the present invention relate to nonlinear mode conversion utilizing intermodal four-wave mixing to convert light between modes having different wavelengths for complex applications. In one embodiment of the present invention, a fiber comprises an input end for receiving light in a first mode at a first wavelength, and an output end for outputting light in a desired second mode at a desired second wavelength, wherein the first wavelength and the second wavelength are not the same. In many embodiments, the fiber comprises a higher-order mode fiber.
摘要翻译：本发明的实施例一般涉及通过非线性效应的光学模式转换。更具体地，本发明的实施例涉及利用联合四波混频以在复杂应用中具有不同波长的模式之间转换光的非线性模式转换。在本发明的一个实施例中，光纤包括用于以第一波长接收第一模式的光的输入端和用于以期望的第二波长以期望的第二模式输出光的输出端，其中第一波长和第二波长不一样。在许多实施例中，光纤包括高阶模式光纤。

5. 发明申请

WO2013006868A2 NON-LINEAR FIBER RESISTANT TO PERTURBATIONS 审中-公开
标题翻译：非线性纤维抵抗刺激
公开(公告)号：WO2013006868A2
公开(公告)日：2013-01-10
申请号：PCT/US2012/045993
申请日：2012-07-09
申请人： OFS FITEL, LLC , FINI, John, M. , GRUNER-NIELSEN, Lars , JAKOBSEN, Dan, P.
发明人： FINI, John, M. , GRUNER-NIELSEN, Lars , JAKOBSEN, Dan, P.
IPC分类号： G02B6/028
CPC分类号： G02F1/365 , G02B6/02028 , G02B6/02214 , G02B6/028 , G02B6/03638 , G02B6/0365
摘要： Embodiments of the present invention relate to a fiber design that achieves high nonlinearity, an effective index providing phase matching for an illustrative wavelength conversion process, and a low sensitivity to perturbations in fiber scaling. In one embodiment, a fiber comprises an inner core having an inner core radius and an inner core index, an outer core having an outer core radius and an outer core index, the outer core index being lower than the inner core index, an inner cladding, having an inner cladding radius and an inner cladding index, the inner cladding index being less than the outer core index, and an effective index of the fiber, the effective index being greater than the inner cladding index and less than the outer core index, wherein the fiber has a low perturbation sensitivity factor of dispersion to scaling less than about 20 ps/ nm / km along the length of the fiber.
摘要翻译：本发明的实施例涉及实现高非线性的光纤设计，提供用于说明性波长转换处理的相位匹配的有效索引，以及对光纤缩放中的扰动的低灵敏度。在一个实施例中，纤维包括具有内芯半径和内芯索引的内芯，外芯具有外芯半径和外芯索引，外芯索引低于内芯索引，内包层具有内包层半径和内包层指数，所述内包层指数小于所述外包芯指数，以及所述纤维的有效折射率，所述有效折射率大于所述内包层指数并小于所述外包芯指数，其中所述光纤具有较低的扰动灵敏度因子，其沿着所述光纤长度的缩放小于约20ps / nm / km。

6. 发明申请

WO2013003863A3 METHOD OF REDUCING THE MODAL GROUP DELAY IN A MULTIMODE TRANSMISSION SYSTEM 审中-公开
公开(公告)号：WO2013003863A3
公开(公告)日：2013-01-03
申请号：PCT/US2012/045323
申请日：2012-07-02
申请人： OFS FITEL, LLC , GRUNER-NIELSEN, Lars , JANSEN, Sander , KRISTENSEN, Poul , VAN DEN BORNE, Dirk
发明人： GRUNER-NIELSEN, Lars , JANSEN, Sander , KRISTENSEN, Poul , VAN DEN BORNE, Dirk
IPC分类号： G01R31/08
摘要： Systems and methods for reducing modal group delay when transmitting a plurality of optical signals over a transmission line that supports a plurality of modes are disclosed. The modes are converted at a plurality of positions along the transmission line so the signals in the end have minimal group delay. The method comprises the steps of receiving N number of optical signals into a multimode fiber having at least N modes, transmitting each of N signals into a mode of the at least N modes of the multimode fiber, and converting each of the N modes into another of the N modes at N positions along the transmission line, such that the net modal group delay generated between the N signals along the transmission line is minimized.

7. 发明申请

WO2013052968A1 FIBER DESIGNS FOR WAVELENGTH TUNABLE ULTRA-SHORT PULSE LASERS 审中-公开
标题翻译：光纤设计用于波长超短脉冲激光器
公开(公告)号：WO2013052968A1
公开(公告)日：2013-04-11
申请号：PCT/US2012/059386
申请日：2012-10-09
申请人： OFS FITEL, LLC , CORNELL UNIVERSITY , GRUNER-NIELSEN, Lars , JAKOBSEN, Dan, P. , PEDERSEN, Martin, E.v. , XU, Chris , CHENG, Ji
发明人： GRUNER-NIELSEN, Lars , JAKOBSEN, Dan, P. , PEDERSEN, Martin, E.v. , XU, Chris , CHENG, Ji
IPC分类号： G02B6/26
CPC分类号： H01S3/067 , G02B6/03688 , G02B6/14 , H01S3/0057 , H01S3/06716 , H01S3/0675 , H01S3/0804 , H01S2301/085
摘要： Embodiments of the present invention generally relate to fiber designs for wavelength tunable ultra-short pulse lasers. More specifically, embodiments of the present invention relate to systems incorporating fiber designs for higher order mode fibers capable of soliton self frequency shifting where a system comprises a first fiber for shifting the wavelength from a pump wavelength to a transfer wavelength and a second fiber for shifting the pulse from the transfer wavelength to an output wavelength. In one embodiment of the present invention, a wavelength tunable short pulse fiber laser system comprises: a pulse generator for providing a pulse having an input wavelength; a mode-converter; a first designed fiber for shifting the pulse from the input wavelength to a transfer wavelength; and a second designed fiber for shifting the pulse from the transfer wavelength to an output wavelength.
摘要翻译：本发明的实施例一般涉及用于波长可调超短脉冲激光器的光纤设计。更具体地，本发明的实施例涉及将光纤设计结合到具有能够进行孤子自移频的高阶模式光纤的系统，其中系统包括用于将波长从泵浦波长移位到传输波长的第一光纤和用于移位的第二光纤从转移波长到输出波长的脉冲。在本发明的一个实施例中，波长可调短脉冲光纤激光系统包括：脉冲发生器，用于提供具有输入波长的脉冲; 模式转换器用于将脉冲从输入波长移位到转移波长的第一设计光纤; 以及用于将脉冲从转移波长移位到输出波长的第二设计光纤。

8. 发明申请

WO2013052961A1 SYSTEMS AND TECHNIQUES FOR FABRICATING OPTICAL FIBER GRATINGS 审中-公开
标题翻译：制造光纤光栅的系统和技术
公开(公告)号：WO2013052961A1
公开(公告)日：2013-04-11
申请号：PCT/US2012/059271
申请日：2012-10-09
申请人： OFS FITEL, LLC , GRUNER-NIELSEN, Lars , OLSEN, Jorgen, Ostgaard
发明人： OFS FITEL, LLC , GRUNER-NIELSEN, Lars , OLSEN, Jorgen, Ostgaard
IPC分类号： G02B6/14
CPC分类号： C03B37/15 , C03B2203/06 , G02B6/02095 , G02B6/02147 , G02B6/14
摘要： A resistive heating element is used to fabricate a long-period grating mode converter. The resistive heating element creates a localized heating zone for creating an asymmetric perturbation at a periodic series of axial locations along the length of a segment of optical fiber that supports the propagation of both a symmetric mode and an asymmetric mode. In a further technique, a grating is written with an index contrast value that is higher than a selected optimum value. The heating element is then used to anneal the fiber segment so as to reduce the contrast value of the grating to the selected optimum value.
摘要翻译：电阻加热元件用于制造长周期光栅模式转换器。电阻加热元件产生局部加热区，用于沿着支持对称模式和非对称模式的传播的光纤段的长度的周期性的一系列轴向位置产生不对称扰动。在另一技术中，光栅被写入具有高于所选择的最佳值的折射率对比度值。然后加热元件用于退火纤维段，以便将光栅的对比度值减小到所选择的最佳值。

9. 发明申请

WO2013002831A1 FIBER STRETCHER MODULE FOR USE IN THE 1550 NM WAVELENGTH RANGE 审中-公开
标题翻译：光纤拉长模块用于1550MW波长范围
公开(公告)号：WO2013002831A1
公开(公告)日：2013-01-03
申请号：PCT/US2011/067634
申请日：2011-12-28
申请人： OFS FITEL, LLC , GRUNER-NIELSEN, Lars
发明人： GRUNER-NIELSEN, Lars
IPC分类号： G02B6/02
CPC分类号： G02B6/29377 , G02B6/03644 , H01S3/0057 , H01S3/06725 , H01S3/06766 , H04B10/25133
摘要： Embodiments of the present invention are generally related to embodiments of the present invention relate to a fiber stretchers module for use in the 1550 nm wavelength range. In one embodiment of the present invention, a fiber stretcher module for use in the 1550 nm wavelength range comprises a first fiber comprising a relative dispersion curve value of greater than about 0.0002 nm -2 and a dispersion value of less than about -60 ps/ (nm∙km) at about 1550 nm, and a second fiber comprising a relative dispersion curve value of about zero and a relative dispersion slope value of about 0.003 nm -1 at about 1550 nm, wherein the fiber stretcher module comprises a collective relative dispersion slope of about 0.0413 nm4 and a relative dispersion curve of about 0.00286 nm -2 at 1550 nm.
摘要翻译：本发明的实施例通常涉及用于1550nm波长范围的纤维拉伸模块的本发明的实施例。在本发明的一个实施例中，用于1550nm波长范围的纤维拉伸模块包括第一纤维，其包含大于约0.0002nm-2的相对色散曲线值和小于约-60ps / （nm·km），以及在约1550nm处包含大约零的相对色散曲线值和约0.003nm-1的相对色散斜率值的第二光纤，其中所述纤维拉伸模块包括集体相对色散斜率为约0.0413nm4，相对色散曲线为约0.00286nm-2，在1550nm。

10. 发明申请

WO2012031304A1 DISPERSION COMPENSATING SYSTEM AND DISPERSION COMPENSATING FIBER WITH IMPROVED FIGURE OF MERIT 审中-公开
标题翻译：分散补偿系统和分散补充纤维与改进的MERIT图
公开(公告)号：WO2012031304A1
公开(公告)日：2012-03-08
申请号：PCT/US2011/050574
申请日：2011-09-06
申请人： OFS FITEL, LLC , GRUNER-NIELSEN, Lars , JAKOBSEN, Dan, P. , JESPERSEN, Kim, G.
发明人： GRUNER-NIELSEN, Lars , JAKOBSEN, Dan, P. , JESPERSEN, Kim, G.
IPC分类号： G02B6/02
CPC分类号： H04B10/2507 , G02B6/02019 , G02B6/02261 , G02B6/03644
摘要： A dispersion-compensating system and a dispersion-compensating fiber have an improved figure of merit and effective area. The dispersion-compensating system comprises a bulk dispersion-compensating module for providing optical-domain bulk dispersion compensation for an optical signal transmission. Additionally, the system may further comprise residual dispersion compensation, which can be performed in the electrical domain following coherent detection of both amplitude and phase of an optical signal. The dispersion-compensating fiber comprises an up-doped core region; a down-doped trench; an up-doped ring; and an outer cladding, and is configured to have a high figure of merit (FOM).
摘要翻译：色散补偿系统和色散补偿光纤具有改善的品质因数和有效面积。色散补偿系统包括用于为光信号传输提供光域体色散补偿的体色散补偿模块。另外，该系统还可以包括残余色散补偿，其可以在光信号的幅度和相位的相干检测之后在电域中执行。色散补偿光纤包括上掺杂核心区域; 下掺杂沟槽; 上掺杂环; 和外包层，并且被配置为具有高的品质因数（FOM）。

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