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公开(公告)号:US09939665B2
公开(公告)日:2018-04-10
申请号:US15337242
申请日:2016-10-28
发明人: Kayvon Barad , Chris Wood , Alessio Cipullo
CPC分类号: G02F1/0134 , G02B6/02076 , G02B6/0208 , G02B6/02095 , G02B6/022 , G02B6/02204 , G02B6/29383 , G02B6/29395 , G02B6/4214 , G02B6/4215 , G02B6/4287 , G02F1/0147 , G02F1/125 , G02F2201/58 , H04B10/2504 , H04J14/02
摘要: A communication apparatus includes an optical fiber along which radiation can be transmitted; an optical fiber grating formed within the optical fiber, the optical fiber grating having a structure, and configured to reflect radiation at a particular wavelength; and an instrument coupled to the grating and configured to controllably modify the structure of the grating, thereby changing the wavelength at which the grating reflects radiation. A communication system including the communication apparatus is also described, along with a method of communicating a signal.
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公开(公告)号:US20170209959A1
公开(公告)日:2017-07-27
申请号:US15483056
申请日:2017-04-10
发明人: Andreas Popp
IPC分类号: B23K26/06 , H01S3/067 , G02B27/09 , H01S3/1055 , G02B6/42 , G02B6/02 , B23K26/064 , H01S3/105
CPC分类号: B23K26/0626 , B23K26/064 , B23K26/08 , G02B6/02095 , G02B6/022 , G02B6/4296 , G02B27/0994 , H01S3/0675 , H01S3/06754 , H01S3/1053 , H01S3/1055
摘要: Optical arrangements for processing a workpiece include a fiber laser arrangement for emitting laser radiation, a fiber arrangement directly coupled to the fiber laser arrangement and configured to guide the laser radiation in a direction to the workpiece to be processed, the fiber arrangement including a transport fiber having a fiber core and at least one fiber cladding surrounding the fiber core, and at least one coupling device for coupling a portion of the laser radiation guided in the fiber arrangement into at least one fiber cladding of the transport fiber. The coupling device has a spectral bandwidth of at least the same magnitude as a spectral bandwidth of the laser radiation. The fiber laser arrangement is configured to change a beam profile of the guided laser radiation to shift the spectral bandwidth of the laser radiation relative to the spectral bandwidth of the coupling device.
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公开(公告)号:US09568670B2
公开(公告)日:2017-02-14
申请号:US14185443
申请日:2014-02-20
申请人: OFS Fitel, LLC
发明人: Kenneth S Feder , Paul S Westbrook
IPC分类号: G02B6/02
CPC分类号: G02B6/02095 , G02B6/02042 , G02B6/021 , G02B6/02123 , G02B2006/0209
摘要: The disclosed embodiments provide systems and methods for mitigating lensing and scattering as an optical fiber is being inscribed with a grating. The disclosed systems and methods mitigate the lensing phenomenon by surrounding an optical fiber with an index-matching material that is held in a vessel with an integrated interferometer (e.g., phase mask, etc.). The index-matching material has a refractive index that is sufficient to reduce intensity variations of the actinic radiation within the optical fiber. Some embodiments of the system include different vessels for holding the index-matching material, with the vessel having an interferometer integrated into the vessel. These vessels permit the optical fiber to be surrounded by the index-matching material while the gratings are written to the optical fiber.
摘要翻译: 所公开的实施例提供了当光纤正刻有光栅时减轻透镜和散射的系统和方法。 所公开的系统和方法通过用保持在具有集成干涉仪(例如相位掩模等)的容器中的折射率匹配材料围绕光纤来减轻透镜现象。 折射率匹配材料具有足以减少光纤内的光化辐射的强度变化的折射率。 系统的一些实施例包括用于保持折射率匹配材料的不同容器,容器具有集成到容器中的干涉仪。 这些容器允许光纤被折射率匹配材料包围,同时光栅被写入到光纤中。
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公开(公告)号:US08768112B2
公开(公告)日:2014-07-01
申请号:US12910522
申请日:2010-10-22
申请人: Matthew Robert Martin , Anthony James George , Jeffrey James Andritz , James Daniel Antalek , James Thomas Clark
发明人: Matthew Robert Martin , Anthony James George , Jeffrey James Andritz , James Daniel Antalek , James Thomas Clark
IPC分类号: G02B6/00
CPC分类号: G01N33/0031 , G01N21/774 , G01N33/004 , G01N33/005 , G01N2021/7709 , G01N2021/7776 , G01N2021/7783 , G02B6/02095 , G02B6/02104
摘要: A system includes an electrical generator comprising a stator, a rotor, and a gas coolant path through an interior of the electrical generator and at least one fiber optic purity sensor configured to sense a gas purity of a flow of a gas coolant through the gas coolant path.
摘要翻译: 一种系统包括发电机,其包括通过发电机内部的定子,转子和气体冷却剂通道,以及至少一个光纤纯度传感器,其构造成感测通过气体冷却剂的气体冷却剂流的气体纯度 路径。
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公开(公告)号:US20120134623A1
公开(公告)日:2012-05-31
申请号:US13257198
申请日:2010-03-10
IPC分类号: G02B6/26
CPC分类号: G02B6/2813 , G02B6/02095 , G02B6/12007 , G02B6/12026 , G02B6/12028 , G02B6/1228 , G02B6/14 , G02B2006/12135 , G02B2006/12159
摘要: In a ridge waveguide serial interferometer mode conversion is induced by a first mode conversion section, a phase difference between modes is introduced by propagation over a length of waveguide and optical interference is produced following further mode conversion induced in a second mode conversion section. The first mode conversion section has a first radius of curvature, which is equal to a second radius of curvature of the second mode conversion section. The ridge waveguide interferometer advantageously provides an equal phase dependency as a function of temperature.
摘要翻译: 在由第一模式转换部分引起的脊波导串行干涉仪模式转换中,通过在一定长度的波导上的传播引入模式之间的相位差,并且在第二模式转换部分中引起的另外的模式转换之后产生光学干涉。 第一模式转换部分具有第一曲率半径,其等于第二模式转换部分的第二曲率半径。 脊波导干涉仪有利地提供作为温度的函数的相等相位依赖性。
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6.
公开(公告)号:US08175435B2
公开(公告)日:2012-05-08
申请号:US12147806
申请日:2008-06-27
CPC分类号: G02B6/02214 , G02B6/02023 , G02B6/02095 , G02B6/03644 , G02B6/03688 , G02B6/29317 , G02B6/29374
摘要: Disclosed are optical fiber devices incorporating optical fibers with total dispersion greater than material dispersion, and with preferred dispersion values less than +50 ps/nm-km. The desired dispersion values are obtained when light resides substantially in a single higher order mode (HOM) of the fiber, typically the LP02 mode. The optical fibers also preferably have substantial separation between the effective indices of the HOM and any other mode.
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公开(公告)号:US20110135245A1
公开(公告)日:2011-06-09
申请号:US12633782
申请日:2009-12-08
申请人: Dongning Wang , Ying Wang , Minwei Yang
发明人: Dongning Wang , Ying Wang , Minwei Yang
CPC分类号: G01K11/3206 , G02B6/02095 , G02B6/021 , G02B6/02147 , G02B6/02342
摘要: An optical fiber with long period fiber gratings includes an optical fiber axis, a core region extending along the fiber axis, the core region having a core refractive index, a cladding region surrounding the core region, the cladding having a cladding refractive index, and a plurality of microholes perpendicular to the fiber axis with a portion of the core region removed, the plurality of microholes are spaced apart by a grating period.
摘要翻译: 具有长周期光纤光栅的光纤包括光纤轴,沿着光纤轴延伸的芯区域,具有芯折射率的芯区域,围绕芯区域的包层区域,包层具有包层折射率,以及 多个微孔与纤维轴垂直,芯区的一部分被去除,多个微孔间隔光栅周期。
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8.
公开(公告)号:US07925128B2
公开(公告)日:2011-04-12
申请号:US12525339
申请日:2008-02-05
CPC分类号: H01S3/06733 , G02B6/02019 , G02B6/02023 , G02B6/02095 , G02B6/02366 , G02B6/03633 , G02B6/14 , G02B6/4296 , H01S3/0672 , H01S3/06741 , H01S3/06754 , H01S3/0804 , H01S3/094003 , H01S3/094038 , H01S3/094096 , H01S2301/03 , H01S2301/20
摘要: The present disclosure provides an approach to more efficiently amplify signals by matching either the gain materials or the pump profile with the signal profile for a higher-order mode (HOM) signal. By doing so, more efficient energy extraction is achieved.
摘要翻译: 本公开提供了一种通过将增益材料或泵配置文件与高阶模式(HOM)信号的信号分布匹配来更有效地放大信号的方法。 通过这样做,实现更有效的能量提取。
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公开(公告)号:US07792401B2
公开(公告)日:2010-09-07
申请号:US12410743
申请日:2009-03-25
申请人: Hyun-seo Kang , Sei-hyoung Lee , Kwon-seob Lim , Jong-jin Lee , Jai-sang Koh
发明人: Hyun-seo Kang , Sei-hyoung Lee , Kwon-seob Lim , Jong-jin Lee , Jai-sang Koh
CPC分类号: G02B6/4246 , G02B6/02095 , G02B6/29317 , G02B6/29323 , G02B6/4214
摘要: An optical waveguide device and an optical communication module are provided. In the optical waveguide device which includes a core and a cladding layer formed around the core and has one end formed to be inclined so as to refract input and output signals, the core includes therein a diffraction portion for diffracting an optical signal incident through the cladding layer to propagate straight through the core. Thus, it is possible to prevent deterioration of an optical signal coupling ratio in implementing a technique of transmitting optical signals in opposite directions.
摘要翻译: 提供光波导器件和光通信模块。 在包括芯和围绕芯部形成的包覆层的光波导器件中,其一端形成为倾斜以折射输入和输出信号,其中包括衍射部分,用于衍射通过包层入射的光信号 层直接传播通过核心。 因此,在实现相反方向上发送光信号的技术中,可以防止光信号耦合比的恶化。
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公开(公告)号:US20100129029A1
公开(公告)日:2010-05-27
申请号:US12313580
申请日:2008-11-21
申请人: Paul S. Westbrook
发明人: Paul S. Westbrook
IPC分类号: G02B6/26
CPC分类号: G02B6/02095 , G02B6/02066 , G02B6/14
摘要: Described are optical devices and related methods wherein a multiple mode input in a Higher Order Mode (an HOM) optical fiber is converted by a complex mode transformer to produce a fundamental mode output in an optical medium with an E-field that is substantially different than that exiting the HOM optical fiber. The medium is preferably a Large Mode Area (LMA) optical fiber, or free space. The mode transformer may be a series of refractive index perturbations created either by photo-induced gratings or by gratings formed by physical deformations of the optical fiber.
摘要翻译: 描述的是光学器件和相关方法,其中高阶模式(HOM)光纤中的多模式输入由复模变换器转换,以在光学介质中产生基本模式输出,其中E场大体上不同于 退出HOM光纤。 该介质优选地是大模式区域(LMA)光纤或自由空间。 模式变压器可以是通过光诱导光栅或由光纤的物理变形形成的光栅产生的一系列折射率扰动。
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