公开(公告)号：US08829471B1

公开(公告)日：2014-09-09

申请号：US13487577

申请日：2012-06-04

申请人： Kristian D. Merkel ,  Colton Richard Stiffler ,  Alex Woidtke ,  Aaron Traxinger ,  Randy W. Equall ,  Zeb Barber ,  Calvin Harrington ,  Krishna Mohan Rupavatharam ,  Charles W. Thiel ,  Rufus Cone

发明人： Kristian D. Merkel ,  Colton Richard Stiffler ,  Alex Woidtke ,  Aaron Traxinger ,  Randy W. Equall ,  Zeb Barber ,  Calvin Harrington ,  Krishna Mohan Rupavatharam ,  Charles W. Thiel ,  Rufus Cone

IPC分类号： C09K11/77 ,  G02B5/00 ,  G01N21/64

CPC分类号： G03H1/0005 ,  G03H2001/0268 ,  G03H2222/10

摘要： Techniques for spatial spectral holography include a doped crystal comprising Thulium doped into a host crystal of Yttrium Lutetium Aluminum Garnet wherein a concentration of Thulium atoms is less than 3 atomic percent. Techniques further include an apparatus with a source for optical electromagnetic radiation and a cryocooler configured to maintain an operating temperature in a range from about 3 Kelvin to about 6 Kelvin. The cryocooler includes a first optical window. The apparatus also includes a doped crystal comprising Thulium doped into a host crystal of Yttrium Lutetium Aluminum Garnet disposed inside the cryocooler in a position to be illuminated by incident optical electromagnetic radiation derived from the source. The apparatus also includes a detector configured to detect optical electromagnetic radiation emitted from the doped crystal. Techniques include a method for using at least one of the above doped crystals.

摘要翻译： 用于空间光谱全息术的技术包括掺杂钇掺杂到钇镥铝石榴石的主晶体中的掺杂晶体，其中钍原子的浓度小于3原子百分比。 技术还包括具有用于光学电磁辐射的源的装置和被配置为将工作温度维持在约3开尔文至约6开尔文范围内的低温冷却器。 低温冷却器包括第一光学窗口。 该装置还包括掺杂晶体，其包含掺入钇镥铝石榴石的主晶体中的ium，所述钇铝钇铝石榴石置于低温冷却器的内部，并由源自源的入射光电磁辐射照射。 该装置还包括检测器，其被配置为检测从掺杂晶体发射的光电磁辐射。 技术包括使用至少一种上述掺杂晶体的方法。

公开(公告)号：US20120140236A1

公开(公告)日：2012-06-07

申请号：US13160207

申请日：2011-06-14

申请人： William R. Babbitt ,  Zeb Barber ,  Calvin Harrington ,  Kristian D. Merkel ,  Krishna Mohan Rupavatharam ,  Charles W. Thiel

发明人： William R. Babbitt ,  Zeb Barber ,  Calvin Harrington ,  Kristian D. Merkel ,  Krishna Mohan Rupavatharam ,  Charles W. Thiel

IPC分类号： G01J3/45

CPC分类号： G01S3/46 ,  G01S3/043

摘要： An apparatus includes a single or dual output port, dual-drive Mach-Zehnder Interferometer configured to generate a first optical signal in one path, and to generate a second optical signal in a different path. The apparatus also includes an optical spectrum analyzer configured to receive output from at least one port of the dual-drive Mach-Zehnder Interferometer. A method includes causing radio frequency signals from two different antennae to modulate an optical carrier at a corresponding drive of a dual-drive Mach-Zehnder Interferometer, and causing output from at least one port of the Mach-Zehnder Interferometer to be directed to an optical spectrum analyzer. The method further comprises determining arrival angle at each of a plurality of frequencies in the radio frequency signals based on output from the optical spectrum analyzer.

摘要翻译： 一种装置包括单输出端口或双输出端口，双驱动马赫 - 曾德干涉仪，其被配置为在一个路径中产生第一光信号，并在不同路径中产生第二光信号。 该装置还包括配置成从双驱动马赫 - 曾德干涉仪的至少一个端口接收输出的光谱分析仪。 一种方法包括使来自两个不同天线的射频信号在双驱动马赫 - 曾德干涉仪的相应驱动下调制光学载体，并且使来自马赫 - 曾德干涉仪的至少一个端口的输出被引导到光学 频谱分析仪 该方法还包括基于来自光谱分析仪的输出来确定射频信号中的多个频率中的每个频率处的到达角度。

公开(公告)号：US09020360B2

公开(公告)日：2015-04-28

申请号：US13169482

申请日：2011-06-27

申请人： Colton Richard Stiffler ,  Scott Henry Bekker ,  Kristian D. Merkel ,  Randy R. Reibel ,  William R. Babbitt ,  Krishna Mohan Rupavatharam

发明人： Colton Richard Stiffler ,  Scott Henry Bekker ,  Kristian D. Merkel ,  Randy R. Reibel ,  William R. Babbitt ,  Krishna Mohan Rupavatharam

IPC分类号： H04B10/04 ,  H04B10/12 ,  H04B10/00 ,  H04B10/516

CPC分类号： H04B10/25759 ,  H04B10/5165

摘要： A method and apparatus includes an optical source for a single order single-sideband suppressed-carrier optical signal with a bandwidth that scales from over 1 gigaHertz to greater than 20 gigaHertz. In an example embodiment, an apparatus includes a stable laser source configured to output an optical carrier signal at a carrier frequency. The apparatus includes a radio frequency electrical source configured to output an electrical radio frequency signal with a radio frequency bandwidth less than one octave. The apparatus also includes an optical modulator configured to output an optical signal with the optical carrier signal modulated by the radio frequency signal in a plurality of orders of optical frequency sidebands. The apparatus further includes an optical filter configured to pass one single order optical frequency sideband of the optical signal.

摘要翻译： 一种方法和装置包括用于单阶带宽抑制载波光信号的光源，带宽从1千兆赫兹到大于20千兆赫兹。 在示例性实施例中，一种装置包括被配置为以载波频率输出光载波信号的稳定激光源。 该装置包括射频电源，被配置为输出小于一个八度的射频带宽的电射频信号。 该装置还包括光调制器，被配置为以多个光频边带的数量级输出具有由射频信号调制的光载波信号的光信号。 该装置还包括配置成通过光信号的一个单次光频带边带的滤光器。

公开(公告)号：US20120002972A1

公开(公告)日：2012-01-05

申请号：US13169482

申请日：2011-06-27

申请人： Colton Richard Stiffler ,  Scott Henry Bekker ,  Kristian D. Merkel ,  Randy R. Reibel ,  William R. Babbitt ,  Krishna Mohan Rupavatharam

发明人： Colton Richard Stiffler ,  Scott Henry Bekker ,  Kristian D. Merkel ,  Randy R. Reibel ,  William R. Babbitt ,  Krishna Mohan Rupavatharam

IPC分类号： H04B10/04

CPC分类号： H04B10/25759 ,  H04B10/5165

摘要： A method and apparatus includes an optical source for a single order single-sideband suppressed-carrier optical signal with a bandwidth that scales from over 1 gigaHertz to greater than 20 gigaHertz. In an example embodiment, an apparatus includes a stable laser source configured to output an optical carrier signal at a carrier frequency. The apparatus includes a radio frequency electrical source configured to output an electrical radio frequency signal with a radio frequency bandwidth less than one octave. The apparatus also includes an optical modulator configured to output an optical signal with the optical carrier signal modulated by the radio frequency signal in a plurality of orders of optical frequency sidebands. The apparatus further includes an optical filter configured to pass one single order optical frequency sideband of the optical signal.

摘要翻译： 一种方法和装置包括用于单阶带宽抑制载波光信号的光源，带宽从1千兆赫兹到大于20千兆赫兹。 在示例性实施例中，一种装置包括被配置为以载波频率输出光载波信号的稳定激光源。 该装置包括射频电源，被配置为输出小于一个八度的射频带宽的电射频信号。 该装置还包括光调制器，被配置为以多个光频边带的数量级输出具有由射频信号调制的光载波信号的光信号。 该装置还包括配置成通过光信号的一个单次光频带边带的滤光器。

公开(公告)号：US07379652B2

公开(公告)日：2008-05-27

申请号：US11404549

申请日：2006-04-14

申请人： Zachary Cole ,  Randy R. Reibel ,  Krishna Mohan Rupavatharam ,  William R. Babbitt ,  Kristian D. Merkel ,  Tiejun Chang

发明人： Zachary Cole ,  Randy R. Reibel ,  Krishna Mohan Rupavatharam ,  William R. Babbitt ,  Kristian D. Merkel ,  Tiejun Chang

IPC分类号： G02B6/00

CPC分类号： G01J3/4338

摘要： Techniques for detecting optical spectral properties of a target are described. The technique includes providing an optical carrier which has an optical frequency bandwidth which is narrow compared to the width of the narrowest spectral feature of the target to be determined. This optical carrier is then electro-optically modulated with an RF frequency chirp, creating an optical chirp probe beam with a frequency chirped optical spectrum having upper and lower frequency chirped sidebands that have amplitudes sufficient to be detected at a detector. The sidebands are frequency bands arranged symmetrically around the optical carrier frequency. The attributes of a sideband include a start frequency, bandwidth and chirp rate. A probe beam is generated with the sidebands and directed onto a target having a physical property with optical frequency dependence. An optical response signal resulting from an interaction between the probe beam and the target is detected. The optical frequency dependence of the physical property of the target is determined based on the optical response signal and the attributes of the sidebands.

摘要翻译： 描述了用于检测目标的光谱性质的技术。 该技术包括提供光载波，其具有与要确定的目标的最窄频谱特征的宽度相比窄的光频带宽。 该光载波然后用RF频率啁啾电光调制，产生具有频率啁啾光谱的光啁啾探测光束，该频谱具有上和下频率啁啾边带，其具有足以在检测器处检测到的幅度。 边带是围绕光载波频率对称布置的频带。 边带的属性包括起始频率，带宽和啁啾率。 探测光束与边带一起生成并被引导到具有光学频率依赖性的物理特性的目标上。 检测由探测光束和目标物之间的相互作用产生的光学响应信号。 基于光响应信号和边带属性确定目标物理性质的光频依赖性。