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公开(公告)号：US09310535B1
公开(公告)日：2016-04-12
申请号：US13947053
申请日：2013-07-20
CPC分类号： G02B5/1861 , G02B5/1814 , G02B27/4283
摘要： An optical diffraction grating includes a substantially transparent grating substrate which has substantially flat first and second surfaces, and a set of grating lines on the first surface characterized by a grating spacing Λ. The grating substrate has a temperature-dependent refractive index nsub and is immersed in a medium having a temperature-dependent refractive index nmed. The first and second substrate surfaces are non-parallel and form a dihedral angle α. The gratings lines are substantially perpendicular to a plane of incidence defined by surface-normal vectors of the first and second surfaces. Variation of a diffraction angle θd′ with temperature, exhibited by the optical diffraction grating at a design wavelength λ and at a design incidence angle θin in the plane of incidence, is less than that variation exhibited by a reference diffraction grating that has parallel first and second substrate surfaces but is otherwise identical to the optical diffraction grating.
摘要翻译： 光学衍射光栅包括具有基本上平坦的第一和第二表面的基本透明的光栅基板，以及在第一表面上的一组光栅线，其特征在于光栅间隔Λ。 光栅基板具有温度依赖性的折射率nsub并且浸入温度依赖折射率nmed的介质中。 第一和第二基板表面不平行并形成二面角α。 光栅线基本上垂直于由第一表面和第二表面的表面法线向量限定的入射平面。 在设计波长λ和设计入射角下，光学衍射光栅所表现的衍射角和色度的变化d'与入射角相比，在参考衍射光栅表现出的变化范围内 具有平行的第一和第二衬底表面，但是与光学衍射光栅相同。
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2.发明授权公开(公告)号：US08989537B2
公开(公告)日：2015-03-24
申请号：US13429364
申请日：2012-03-24
CPC分类号： G02B6/02057 , B29D11/0074 , G02B5/1809 , G02B6/02076
摘要： An optical grating comprising a grating layer and two surface layers, the layers being arranged with the grating layer between the surface layers. The grating layer comprises a set of multiple, discrete, elongated first grating regions that comprise a first dielectric material and are arranged with intervening elongated second grating regions. The bulk refractive index of the dielectric material of the first grating regions is larger than the bulk refractive index of the second grating regions. The first surface layer comprises a first impedance matching layer, and the second surface layer comprises either (i) a second impedance matching layer or (ii) a reflective layer. Each said impedance matching layer is arranged to reduce reflection of an optical signal transmitted through the corresponding surface of the grating layer, relative to reflection of the optical signal in the absence of said impedance matching layer.
摘要翻译： 包括光栅层和两个表面层的光栅，所述层与所述表面层之间的所述光栅层布置。 光栅层包括一组多个离散的细长的第一光栅区域，其包括第一电介质材料并且布置有中间细长的第二光栅区域。 第一光栅区域的电介质材料的体积折射率大于第二光栅区域的体折射率。 第一表面层包括第一阻抗匹配层，第二表面层包括（i）第二阻抗匹配层或（ii）反射层。 每个所述阻抗匹配层被布置成相对于在没有所述阻抗匹配层的情况下相对于光信号的反射来减少透射通过光栅层的对应表面的光信号的反射。
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公开(公告)号：US08169703B1
公开(公告)日：2012-05-01
申请号：US11851389
申请日：2007-09-06
IPC分类号： G02B5/18
CPC分类号： G02B5/188 , G02B27/4255
摘要： An optical apparatus comprises at least one primary diffraction grating and at least one reference diffraction grating each formed on or within a common grating substrate. The reference diffraction grating is arranged so as to diffract and disperse spatially according to wavelength a reference optical signal incident on the reference diffraction grating at an input incidence angle. The primary diffraction grating is arranged so as to diffract and disperse spatially according to wavelength an input optical signal incident on the primary diffraction grating at the input incidence angle. The reference and primary diffraction gratings exhibit at least one differing grating structural parameter. The reference and primary diffraction gratings are arranged so that a diffracted and spatially dispersed reference optical signal having at least one known wavelength component defines at least one spatial wavelength calibration reference for the diffracted and spatially dispersed input optical signal.
摘要翻译： 光学装置包括至少一个初级衍射光栅和至少一个参考衍射光栅，每个衍射光栅形成在公共光栅衬底上或内部。 参考衍射光栅被布置成在输入入射角处根据入射在参考衍射光栅上的参考光信号的波长在空间上衍射和分散。 主衍射光栅被布置成在输入入射角处根据入射在主衍射光栅上的输入光信号的波长在空间上衍射和分散。 参考和主要衍射光栅表现出至少一个不同的光栅结构参数。 参考和一次衍射光栅被布置成使得具有至少一个已知波长分量的衍射和空间分散的参考光信号为衍射和空间分散的输入光信号定义至少一个空间波长校准基准。
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公开(公告)号：US07224855B2
公开(公告)日：2007-05-29
申请号：US10740194
申请日：2003-12-17
CPC分类号： G02B6/29322 , G02B6/29326 , G02B6/29328 , G02B6/29329 , G02B6/29383 , H04J14/0201
摘要： An optical multiplexing device includes an optical element having at least one set of diffractive elements, and an optical reflector. The reflector routes, between first and second optical ports, that portion of an optical signal transmitted by the diffractive element set. The diffractive element set routes, between first and multiplexing optical ports, a portion of the optical signal that is diffracted by the diffractive element set. More complex optical multiplexing functionality(ies) may be achieved using additional sets of diffractive elements, in a common optical element (and possibly overlaid) or in separate optical elements with multiple reflectors. Separate multiplexing devices may be assembled with coupled ports for forming more complex devices. The respective portions of an optical signal transmitted by and reflected/diffracted from the diffractive element set typically differ spectrally. The portion reflected from the diffractive element set may comprise one or more channels of an optical WDM system.
摘要翻译： 光学多路复用装置包括具有至少一组衍射元件的光学元件和光学反射器。 反射器在第一和第二光学端口之间路由由衍射元件组发送的光学信号的那部分。 在第一和多路复用光学端口之间的衍射元件集路由由衍射元件组衍射的光信号的一部分。 可以在普通光学元件（可能覆盖）中或在具有多个反射器的单独的光学元件中使用附加的衍射元件组来实现更复杂的光学复用功能。 单独的复用设备可以与用于形成更复杂设备的耦合端口组合。 通过衍射元件组发送和反射/衍射的光信号的各个部分通常在光谱上不同。 从衍射元件组反射的部分可以包括光学WDM系统的一个或多个通道。
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公开(公告)号：US07203401B2
公开(公告)日：2007-04-10
申请号：US11383494
申请日：2006-05-16
IPC分类号： G02B6/34
CPC分类号： G02B6/12009 , G02B5/32 , G02B6/12004 , G02B6/12007 , G02B6/12019 , G02B6/124 , G02B6/29326 , G02B6/29328 , G02B6/42 , G02B6/4214 , G02B2006/12164
摘要： A planar optical waveguide is formed having sets of locking diffractive elements and means for routing optical signals. Lasers are positioned to launch signals into the planar waveguide that are successively incident on elements of the locking diffractive element sets, which route fractions of the signals back to the lasers as locking feedback signals. The routing means route between lasers and output port(s) portions of those fractions of signals transmitted by locking diffractive element sets. Locking diffractive element sets may be formed in channel waveguides formed in the planar waveguide, or in slab waveguide region(s) of the planar waveguide. Multiple routing means may comprise routing diffractive element sets formed in a slab waveguide region of the planar waveguide, or may comprise an arrayed waveguide grating formed in the planar waveguide. The apparatus may comprise a multiple-wavelength optical source.
摘要翻译： 平面光波导形成有一组锁定衍射元件和用于路由光信号的装置。 激光器被定位成将信号发射到平面波导中，其连续地入射到锁定衍射元件组的元件上，其将信号的一部分作为锁定反馈信号返回到激光器。 路由是指通过锁定衍射元件组传输的那些信号分数的激光与输出端口之间的路线。 锁定衍射元件组可以形成在平面波导中形成的沟道波导中，或者形成在平面波导的平板波导区域中。 多路由装置可以包括在平面波导的平板波导区域中形成的衍射元件组，或者可以包括阵列波导光栅
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6.发明授权Distributed optical structures with improved diffraction efficiency and/or improved optical coupling 有权具有改进的衍射效率和/或改进的光耦合的分布式光学结构公开(公告)号：US07194164B2
公开(公告)日：2007-03-20
申请号：US10898527
申请日：2004-07-22
CPC分类号： G02B5/203 , G02B5/32 , G02B6/12007 , G02B6/124 , G02B6/29326 , G02B6/29328 , G02B2006/12164 , G03H1/0005 , G03H1/0248
摘要： An optical apparatus comprises a planar optical waveguide having at least one set of diffractive elements and confining in at least one transverse spatial dimension optical signals propagating therein. Each diffractive element set routes, between corresponding input and output optical ports, a corresponding diffracted portion of an input optical signal propagating in the waveguide that is successively incident on the diffractive elements and is diffracted by the diffractive element set. The optical signals propagate in the waveguide in corresponding diffractive-region optical transverse modes in regions where the diffractive elements are present, and in corresponding non-diffractive-region optical transverse modes in regions where the diffractive elements are absent. The diffractive element set is adapted so as to yield an operationally acceptable level of either or both of i) optical coupling between corresponding diffractive-region and non-diffractive-region optical transverse modes, and ii) diffraction efficiency of the diffractive element set.
摘要翻译： 光学装置包括具有至少一组衍射元件的平面光波导，并限定在其中传播的至少一个横向空间维度的光信号。 每个衍射元件组在相应的输入和输出光学端口之间路由在波导中传播的输入光信号的相应的衍射部分，其被连续地入射在衍射元件上并被衍射元件组衍射。 在衍射元件存在的区域中，光信号在波导中以对应的衍射区光学横向模式传播，并且在衍射元件不存在的区域中以相应的非衍射区光学横向模式传播。 衍射元件组适于产生i）相应的衍射区域和非衍射区域光学横向模式之间的光学耦合中的任一个或两者的操作上可接受的水平，以及ii）衍射元件组的衍射效率。
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公开(公告)号：US07009743B2
公开(公告)日：2006-03-07
申请号：US11239540
申请日：2005-09-28
申请人： Thomas W. Mossberg
发明人： Thomas W. Mossberg
IPC分类号： G03H1/00
CPC分类号： G02B5/203 , G02B5/32 , G02B6/12007 , G02B6/124 , G02B6/29322 , G02B6/29326 , G02B6/29328 , G02B6/29395 , G02B2006/12164 , G03H1/0005 , G03H1/0248 , G03H2225/23 , H04J14/02 , H04J14/0201
摘要： Method and apparatus are disclosed for optical packet decoding, waveform generation and wavelength multiplexing/demultiplexing using a programmed holographic structure. A configurable programmed holographic structure is disclosed. A configurable programmed holographic structure may be dynamically re-configured through the application of control mechanisms which alter operative holographic structures.
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公开(公告)号：US06961491B2
公开(公告)日：2005-11-01
申请号：US10989244
申请日：2004-11-15
IPC分类号： G02B6/34
CPC分类号： G02B6/12011 , G02B6/12023
摘要： An optical apparatus comprises an optical element having at least one set of diffractive elements and multiple channel optical waveguides. Diffractive elements of each set are distributed among diffractive element subsets corresponding to each of the multiple channel waveguides. Each diffractive element set routes, between a corresponding pair of optical ports, those corresponding portions of an optical signal propagating within the optical element that are received by multiple channel waveguides and back-diffracted within the receiving channel waveguides by corresponding diffractive element subsets. The channel optical waveguides are arranged so that optical signals propagate through regions of the optical element between the ports and the first ends of the channel waveguides. Relative spatial arrangement of the first ends of the channel waveguides and corresponding relative phase shifts imparted in the channel waveguides define at least in part a relative spatial arrangement of the corresponding pair of optical ports.
摘要翻译： 光学装置包括具有至少一组衍射元件和多通道光波导的光学元件。 每组的衍射元件分布在对应于多个通道波导中的每一个的衍射元件子集中。 每个衍射元件组在对应的一对光学端口之间路由在光学元件内传播的光信号的那些对应部分，其由多个通道波导接收并且通过对应的衍射元件子集在接收信道波导内被后向衍射。 通道光波导被布置成使得光信号通过光学元件的区域在通道波导的端口和第一端之间传播。 通道波导的第一端的相对空间布置以及在通道波导中施加的对应的相对相移至少部分地限定了相应的一对光学端口的相对空间布置。
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公开(公告)号：US07643400B1
公开(公告)日：2010-01-05
申请号：US11277423
申请日：2006-03-24
CPC分类号： G11B7/24038 , G11B7/24044
摘要： An optical data storage medium comprises an optical medium with multiple data marks. Each data mark is arranged for modifying a portion of an optical reading beam incident thereon. At least one of the data marks is a delocalized data mark comprising a set of multiple diffractive elements collectively arranged for modifying a portion of the optical reading beam incident thereon. A method for recording data on an optical data storage medium comprises forming on or in the optical medium multiple data marks encoding the recorded data, including the at least one delocalized data mark. A method for reading an optical data storage medium comprises: successively illuminating with the optical reading beam the multiple data marks; sensing variations among the respective portions of the optical reading beam modified by the multiple data marks; and decoding from the sensed variations data encoded by the multiple data marks.
摘要翻译： 光学数据存储介质包括具有多个数据标记的光学介质。 每个数据标记被布置用于修改入射在其上的光学读取光束的一部分。 数据标记中的至少一个是离域数据标记，其包括一组多个衍射元件，这些多个衍射元件共同设置用于修改入射在其上的光学读取光束的一部分。 一种用于在光学数据存储介质上记录数据的方法包括在光学介质上或光学介质上形成包括至少一个离域数据标记的编码所记录数据的多个数据标记。 一种用于读取光学数据存储介质的方法包括：用光学读取光束连续照射多个数据标记; 感测由所述多个数据标记修改的所述光学读取光束的各个部分之间的变化; 以及从由多个数据标记编码的感测变化数据进行解码。
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10.发明授权Optical waveguide assembled with an optical subunit having a diffractive element set and an optical component 有权用具有衍射元件组和光学部件的光学子单元组装的光波导公开(公告)号：US07333692B1
公开(公告)日：2008-02-19
申请号：US11552501
申请日：2006-10-24
IPC分类号： G02B6/34
CPC分类号： G02B6/124 , G02B6/12007 , G02B6/29323 , G02B6/42 , G02B6/43
摘要： An apparatus comprises an optical transmission element, a diffractive element set formed in or on the transmission element, and an optical component. The diffractive element set is positioned to enable spatial overlap of diffractive elements and an evanescent optical signal propagating in a suitably positioned optical waveguide. The diffractive elements are arranged to establish optical coupling between respective optical signals propagating within the transmission element and the optical waveguide. The optical component is arranged to launch or receive the optical signal propagating within the transmission element. The diffractive element set is arranged so that the optical signal in waveguide is successively incident on the diffractive elements. The optical apparatus can further include the optical waveguide, with the optical waveguide and the transmission element comprising discrete, assembled subunits.
摘要翻译： 一种装置包括光传输元件，形成在传输元件中或其上的衍射元件组和光学部件。 衍射元件组被定位成使得衍射元件的空间重叠和在适当定位的光波导中传播的渐逝光信号。 衍射元件被布置成在传输元件和光波导中传播的相应光信号之间建立光耦合。 光学部件布置成发射或接收在传输元件内传播的光信号。 衍射元件组被布置成使得波导中的光信号相继入射到衍射元件上。 光学设备还可以包括光波导，其中光波导和传输元件包括离散的，组装的子单元。
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