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1. 发明申请

US20100195676A1 System and method for coupling multiple beams to an active fiber 有权
标题翻译：用于将多个光束耦合到有源光纤的系统和方法
公开(公告)号：US20100195676A1
公开(公告)日：2010-08-05
申请号：US12320622
申请日：2009-01-30
申请人： Sami A. Shakir , Burke E. Nelson , William R. Culver , Michael M. Fitelson , Jerry W. Hedrick , George M. Bates
发明人： Sami A. Shakir , Burke E. Nelson , William R. Culver , Michael M. Fitelson , Jerry W. Hedrick , George M. Bates
IPC分类号： H01S3/30 , G02B6/32
CPC分类号： H01S3/094003 , G02B6/26 , G02B6/32 , G02B6/4214 , G02B6/4296 , H01S3/094019 , H01S3/094053 , H01S3/094057 , H01S3/09408 , H01S3/09415
摘要： A system and a method for coupling multiple pump light beams to an active fiber. The system including an inverted conical disk, concave lens or glass wedge, an active fiber placed in a center of the inverted conical disk (or concave lens) or at a bottom facet of the glass wedge and a plurality of pump light sources. The system further includes a plurality of lenses for focusing pump light beams from pump light sources towards a side of the inverted conical disk, concave lens or glass wedge, wherein the inverted conical disk, concave lens or glass wedge, couples the pump light beams into the active fiber.A method for coupling multiple pump light beams to an active fiber. The method includes providing an inverted conical disk, concave lens or glass wedge. The method further includes providing an active fiber in approximately the center of the inverted conical disk (or concave lens) or at a bottom facet of the glass wedge. The method further includes pump light sources for emitting pump light beams and focusing lenses for focusing pump light beams toward the axis of the active fiber. Pump light beams are emitted towards the side of the inverted conical disk, concave lens, or glass wedge and coupled to the active fiber.
摘要翻译：用于将多个泵浦光束耦合到有源光纤的系统和方法。该系统包括倒锥形盘，凹透镜或玻璃楔，放置在倒锥形盘（或凹透镜）的中心或玻璃楔的底面的有源光纤和多个泵浦光源。该系统还包括多个透镜，用于将来自泵浦光源的泵浦光束朝向倒锥形盘，凹透镜或玻璃楔的一侧聚焦，其中倒置的圆锥盘，凹透镜或玻璃楔将泵浦光束耦合到活性纤维。一种将多个泵浦光束耦合到有源光纤的方法。该方法包括提供倒圆锥盘，凹透镜或玻璃楔。该方法还包括在倒锥形盘（或凹透镜）的大致中心处或玻璃楔的底面提供有源纤维。该方法还包括用于发射泵浦光束的泵浦光源和用于将泵浦光束聚焦到有源光纤的轴线的聚焦透镜。泵浦光束朝向倒锥形盘，凹透镜或玻璃楔的一侧发射并耦合到有源光纤。

2. 发明授权

US07983313B2 System and method for coupling multiple beams to an active fiber 有权
标题翻译：用于将多个光束耦合到有源光纤的系统和方法
公开(公告)号：US07983313B2
公开(公告)日：2011-07-19
申请号：US12320622
申请日：2009-01-30
申请人： Sami A. Shakir , Burke E. Nelson , William R. Culver , Michael M. Fitelson , Jerry W. Hedrick , George M. Bates
发明人： Sami A. Shakir , Burke E. Nelson , William R. Culver , Michael M. Fitelson , Jerry W. Hedrick , George M. Bates
IPC分类号： H01S3/30 , H01S3/10 , H01S3/08 , G02B6/26 , G02B6/32
CPC分类号： H01S3/094003 , G02B6/26 , G02B6/32 , G02B6/4214 , G02B6/4296 , H01S3/094019 , H01S3/094053 , H01S3/094057 , H01S3/09408 , H01S3/09415
摘要： A system and a method for coupling multiple pump light beams to an active fiber. The system including an inverted conical disk, concave lens or glass wedge, an active fiber placed in a center of the inverted conical disk (or concave lens) or at a bottom facet of the glass wedge and a plurality of pump light sources. The system further includes a plurality of lenses for focusing pump light beams from pump light sources towards a side of the inverted conical disk, concave lens or glass wedge, wherein the inverted conical disk, concave lens or glass wedge, couples the pump light beams into the active fiber.A method for coupling multiple pump light beams to an active fiber. The method includes providing an inverted conical disk, concave lens or glass wedge. The method further includes providing an active fiber in approximately the center of the inverted conical disk (or concave lens) or at a bottom facet of the glass wedge. The method further includes pump light sources for emitting pump light beams and focusing lenses for focusing pump light beams toward the axis of the active fiber. Pump light beams are emitted towards the side of the inverted conical disk, concave lens, or glass wedge and coupled to the active fiber.
摘要翻译：用于将多个泵浦光束耦合到有源光纤的系统和方法。该系统包括倒锥形盘，凹透镜或玻璃楔，放置在倒锥形盘（或凹透镜）的中心或玻璃楔的底面的有源光纤和多个泵浦光源。该系统还包括多个透镜，用于将来自泵浦光源的泵浦光束朝向倒锥形盘，凹透镜或玻璃楔的一侧聚焦，其中倒置的圆锥盘，凹透镜或玻璃楔将泵浦光束耦合到活性纤维。一种将多个泵浦光束耦合到有源光纤的方法。该方法包括提供倒圆锥盘，凹透镜或玻璃楔。该方法还包括在倒锥形盘（或凹透镜）的大致中心处或玻璃楔的底面提供有源纤维。该方法还包括用于发射泵浦光束的泵浦光源和用于将泵浦光束聚焦到有源光纤的轴线的聚焦透镜。泵浦光束朝向倒锥形盘，凹透镜或玻璃楔的一侧发射并耦合到有源光纤。

3. 发明授权

US07580431B2 Method and apparatus for high power amplification in multimode fibers 有权
标题翻译：多模光纤高功率放大的方法和装置
公开(公告)号：US07580431B2
公开(公告)日：2009-08-25
申请号：US10922925
申请日：2004-08-23
申请人： Michael M. Fitelson , Burke E. Nelson , Robert R. Rice , Sami A. Shakir
发明人： Michael M. Fitelson , Burke E. Nelson , Robert R. Rice , Sami A. Shakir
IPC分类号： H01S3/30
CPC分类号： H01S3/06754 , H01S3/06729 , H01S3/094003
摘要： An apparatus and method for high power amplification in a multimode fiber amplifier. The apparatus includes a diffraction limited low power laser, a multimode fiber amplifier, and a lens. The multimode fiber amplifier is coupled to the low power laser to amplify the low power laser output. The multimode fiber amplifier has a length that is set to a phase-matching length at which the transverse modes of the multimode fiber amplifier are in phase. The lens is coupled to the multimode fiber amplifier and outputs a kilowatt (KW)-level, diffraction-limited output beam from the multimode fiber amplifier.
摘要翻译：一种用于多模光纤放大器中的大功率放大的装置和方法。该装置包括衍射限制低功率激光器，多模光纤放大器和透镜。多模光纤放大器耦合到低功率激光器以放大低功率激光输出。多模光纤放大器的长度被设定为多模光纤放大器的横模同相的相位匹配长度。透镜耦合到多模光纤放大器，并输出来自多模光纤放大器的千瓦（KW）级衍射极限输出光束。

4. 发明授权

US07888248B2 Method of producing large area SiC substrates 有权
标题翻译：生产大面积SiC衬底的方法
公开(公告)号：US07888248B2
公开(公告)日：2011-02-15
申请号：US11826278
申请日：2007-07-13
申请人： Narsingh Bahadur Singh , Brian P. Wagner , David J. Knuteson , David Kahler , Andre E. Berghmans , Michael Aumer , Jerry W. Hedrick , Marc E. Sherwin , Michael M. Fitelson , Mark S. Usefara , Sean McLaughlin , Travis Randall , Thomas J. Knight
发明人： Narsingh Bahadur Singh , Brian P. Wagner , David J. Knuteson , David Kahler , Andre E. Berghmans , Michael Aumer , Jerry W. Hedrick , Marc E. Sherwin , Michael M. Fitelson , Mark S. Usefara , Sean McLaughlin , Travis Randall , Thomas J. Knight
IPC分类号： H01L21/20
CPC分类号： C30B25/105 , C30B23/02 , C30B25/02 , C30B29/36 , H01L21/02381 , H01L21/02433 , H01L21/02447 , H01L21/02458 , H01L21/02502 , H01L21/02529 , H01L21/0254 , H01L21/0262 , H01L21/02631 , H01L21/02658 , Y10T428/259
摘要： A method for growing a SiC-containing film on a Si substrate is disclosed. The SiC-containing film can be formed on a Si substrate by, for example, plasma sputtering, chemical vapor deposition, or atomic layer deposition. The thus-grown SiC-containing film provides an alternative to expensive SiC wafers for growing semiconductor crystals.
摘要翻译：公开了一种在Si衬底上生长含SiC膜的方法。可以通过例如等离子体溅射，化学气相沉积或原子层沉积在Si衬底上形成含SiC的膜。这样生长的含SiC膜提供了用于生长半导体晶体的昂贵的SiC晶圆的替代方案。

5. 发明申请

US20090014756A1 Method of producing large area SiC substrates 有权
标题翻译：生产大面积SiC衬底的方法
公开(公告)号：US20090014756A1
公开(公告)日：2009-01-15
申请号：US11826278
申请日：2007-07-13
申请人： Narsingh Bahadur Singh , Brian P. Wagner , David J. Knuteson , David Kahler , Andre E. Berghmans , Michael Aumer , Jerry W. Hedrick , Marc E. Sherwin , Michael M. Fitelson , Mark S. Usefara , Sean McLaughlin , Travis Randall , Thomas J. Knight
发明人： Narsingh Bahadur Singh , Brian P. Wagner , David J. Knuteson , David Kahler , Andre E. Berghmans , Michael Aumer , Jerry W. Hedrick , Marc E. Sherwin , Michael M. Fitelson , Mark S. Usefara , Sean McLaughlin , Travis Randall , Thomas J. Knight
IPC分类号： H01L29/739 , B32B5/16 , H01L21/20
CPC分类号： C30B25/105 , C30B23/02 , C30B25/02 , C30B29/36 , H01L21/02381 , H01L21/02433 , H01L21/02447 , H01L21/02458 , H01L21/02502 , H01L21/02529 , H01L21/0254 , H01L21/0262 , H01L21/02631 , H01L21/02658 , Y10T428/259
摘要： A method for growing a SiC-containing film on a Si substrate is disclosed. The SiC-containing film can be formed on a Si substrate by, for example, plasma sputtering, chemical vapor deposition, or atomic layer deposition. The thus-grown SiC-containing film provides an alternative to expensive SiC wafers for growing semiconductor crystals.
摘要翻译：公开了一种在Si衬底上生长含SiC膜的方法。可以通过例如等离子体溅射，化学气相沉积或原子层沉积在Si衬底上形成含SiC的膜。这样生长的含SiC膜提供了用于生长半导体晶体的昂贵的SiC晶圆的替代方案。

6. 发明授权

US10720572B1 Skyrmion stack memory device 有权
公开(公告)号：US10720572B1
公开(公告)日：2020-07-21
申请号：US16273777
申请日：2019-02-12
申请人： Michael M. Fitelson , Thomas F. Ambrose , Nicholas D. Rizzo
发明人： Michael M. Fitelson , Thomas F. Ambrose , Nicholas D. Rizzo
IPC分类号： H01L43/08 , H01L43/02 , H01L43/10
摘要： A memory device includes a memory stack formed on a substrate to program skyrmions within at least one layer of the stack. The skyrmions represent logic states of the memory device. The memory stack further includes a top and bottom electrode to receive electrical current from an external source and to provide the electrical current to the memory stack. A free layer stores a logic state of the skyrmions in response to the electrical current. A Dzyaloshinskii-Moriya (DM) Interaction (DMI) layer in contact with the free layer induces skyrmions in the free layer. A tunnel barrier is interactive with the DMI layer to facilitate detection of the logic state of the skyrmions in response to a read current. At least one fixed magnetic (FM) layer is positioned within the memory stack to facilitate programming of the skyrmions within the free layer in response to the electrical current.

7. 发明授权

US07286209B1 Generation of wideband high power coherent optical radar signals 有权
标题翻译：生成宽带大功率相干光学雷达信号
公开(公告)号：US07286209B1
公开(公告)日：2007-10-23
申请号：US11346156
申请日：2006-02-03
申请人： Francis W. Hopwood , John H. Glezen , Michael M. Fitelson , George R. Gray , Christopher M. Patrick
发明人： Francis W. Hopwood , John H. Glezen , Michael M. Fitelson , George R. Gray , Christopher M. Patrick
IPC分类号： G01C3/08 , H01S3/10 , H01S3/13
CPC分类号： G01S7/491 , G01S7/4815 , G01S7/4911 , H01S3/1307 , H01S3/2383 , H01S3/2391
摘要： An arrangement for generating a high power optical radar beam. The arrangement includes first and second laser sources each having a first laser for generating an optical beam of a relatively low frequency F1 and a second laser for generating an optical beam of relatively higher frequency F2. Each laser source provides a first optical beam of frequency F2 and a second optical beam of frequency F1+F2. The arrangement also includes first and second waveform generators each having a modulator and a mixer. A first waveform generator receives the optical beams from the first laser source and a modulation signal for modulating the F1+F2 optical beam. The first waveform generator is operative to provide an output optical beam of frequency F1 having all of the modulation applied to the optical beam of frequency F1+F2. A phase comparator receives the outputs from the waveform generators and if they deviate in phase, a feedback device applies a corrective signal to the modulator of the second waveform generator until the two output signals are identical. When they are identical, the phase comparator is operable to provide an output optical beam which is the coherent addition of its two input optical beams.
摘要翻译：一种用于产生高功率光学雷达光束的装置。该装置包括第一和第二激光源，每个激光源具有用于产生相对低频率F 1的光束的第一激光器和用于产生相对较高频率F 2的光束的第二激光器。每个激光源提供频率为F 2的第一光束和频率为F 1 + F 2的第二光束。该装置还包括具有调制器和混频器的第一和第二波形发生器。第一波形发生器接收来自第一激光源的光束和用于调制F 1 + F 2光束的调制信号。第一波形发生器用于提供具有施加到频率F 1 + F 2的光束的所有调制的频率F 1的输出光束。相位比较器接收来自波形发生器的输出，并且如果它们相位偏离，反馈装置将校正信号施加到第二波形发生器的调制器，直到两个输出信号相同。当它们相同时，相位比较器可操作地提供作为其两个输入光束的相干相加的输出光束。

8. 发明授权

US07193544B1 Parallel, adaptive delta sigma ADC 失效
标题翻译：并行，自适应Δ西格玛ADC
公开(公告)号：US07193544B1
公开(公告)日：2007-03-20
申请号：US11220712
申请日：2005-09-08
申请人： Michael M. Fitelson , Aaron Pesetski , Alfred P. Turley
发明人： Michael M. Fitelson , Aaron Pesetski , Alfred P. Turley
IPC分类号： H03M3/00
CPC分类号： H03M3/396 , H03M3/388 , H03M3/468
摘要： An apparatus performs adaptive analog-to-digital conversion. The apparatus according to one embodiment comprises a frequency modulator unit for changing an input analog signal into a modulated analog signal with a frequency spectrum in a bandwidth of interest, a parallel delta sigma conversion unit operatively connected to the frequency modulator unit, the parallel delta sigma conversion unit converting the modulated analog signal into a digital signal, and a controller operatively connected to the frequency modulator unit and the parallel delta sigma conversion unit, the controller adjusting at least one parameter relating to a frequency characteristic of the frequency modulator unit and/or the parallel delta sigma conversion unit.
摘要翻译：一种装置执行自适应模数转换。根据一个实施例的装置包括：频率调制器单元，用于将输入的模拟信号改变成具有感兴趣带宽中的频谱的经调制的模拟信号，可操作地连接到频率调制器单元的并行ΔΣ转换单元，并行Δ西格玛转换单元将调制的模拟信号转换为数字信号，以及可操作地连接到频率调制器单元和并行ΔΣ转换单元的控制器，所述控制器调整与频率调制器单元的频率特性相关的至少一个参数和/或并行ΔΣ转换单元。

9. 发明授权

US4204262A Optical signal processing apparatus 失效
标题翻译：光信号处理装置
公开(公告)号：US4204262A
公开(公告)日：1980-05-20
申请号：US800155
申请日：1977-05-25
申请人： Michael M. Fitelson , Dennis R. Morgan
发明人： Michael M. Fitelson , Dennis R. Morgan
IPC分类号： G01S7/02 , G01S7/52 , G06E3/00 , G06G9/00 , G06G7/19
CPC分类号： G01S15/8968 , G01S7/02 , G06E3/001
摘要： Signal processing apparatus having the capability to perform simultaneous space-time processing of sonar, radar and similar time-varying signals, and to effect the Fourier transform of multiple time-varying signals through electro-optical photoelastic means, photoconductive means, or photoemissive means.
摘要翻译：信号处理装置具有对声纳，雷达和类似的时变信号进行同时时空处理的能力，并通过电光光弹性装置，光电装置或光发射装置实现多个时变信号的傅立叶变换。

10. 发明授权

US4703471A Monolithically integrated electro-optical multiplexer/demultiplexer 失效
标题翻译：单片集成电光复用器/解复用器
公开(公告)号：US4703471A
公开(公告)日：1987-10-27
申请号：US688375
申请日：1985-01-02
申请人： Michael M. Fitelson , Stephen Wanuga , Jack B. Williams
发明人： Michael M. Fitelson , Stephen Wanuga , Jack B. Williams
IPC分类号： H04J3/04 , H04L25/49 , H04B9/00
CPC分类号： H04J3/047 , H04L25/4923
摘要： A monolithically integrated circuit is described for multiplexing parallel electrical data into a serial bit stream for transmission by fiber optics to a remote utilization apparatus and for demultiplexing a serial bit stream received from a fiber optics transmission path from a remote source. The integrated circuit uses a separate fiber for transmission and for reception, and in the transmission mode, encodes the data, which is clocked by on chip clocking into a self-clocking three-level code. The integrated circuit utilizes GaAs as the substrate material and is capable of transmitting data at bit rates in excess of 1/2 gHz.
摘要翻译：描述了单片集成电路，用于将并行电数据复用到串行比特流中，用于由光纤传输到远程利用装置，以及从远程源解复用从光纤传输路径接收的串行比特流。集成电路使用单独的光纤进行传输和接收，并且在传输模式下，将通过片上时钟计时的数据编码为自定时三电平码。该集成电路使用GaAs作为衬底材料，并能够以超过1/2 gHz的位速率传输数据。

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