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公开(公告)号：US09252795B2
公开(公告)日：2016-02-02
申请号：US14050468
申请日：2013-10-10
Applicant: Raytheon Company
Inventor： Steven R. Wilkinson , Matthew T. Cashen , Todd O. Clatterbuck
CPC classification number: H03L7/26 , G04F5/14 , G04F13/02 , G04G7/00 , G04G7/02 , H01S3/1303 , H01S3/1304 , H01S3/1305 , H01S3/2383
Abstract: A system for distributing a reference oscillator signal includes a clock having a reference oscillator and a femtosecond laser stabilized by the reference oscillator. The system also includes at least one beamsplitter configured to split the femtosecond laser. The system further includes one or more remote nodes that are spaced from the clock. The remote nodes are configured to generate reference signals based on the split femtosecond laser.
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公开(公告)号：US20160028541A1
公开(公告)日：2016-01-28
申请号：US14337688
申请日：2014-07-22
Applicant: Raytheon Company
Inventor： Steven R. Wilkinson , Ulvi Yurtsever
IPC: H04L9/08
CPC classification number: H04L9/0858 , H04L9/0852 , H04L9/0855 , H04L2209/24 , H04L2209/34
Abstract: A system and method for distributing a quantum key from a first party to a second party. A first node is connected to a public channel, wherein the first node includes a pulse position modulation encoder connected to a quantum channel. A second node is connected to the public channel, wherein the second node includes a pulse position modulation decoder connected to the quantum channel. The pulse position modulation encoder encodes quantum states |0> and |1>, and transmits the encoded quantum states from the first node to the second node via the quantum channel. Quantum state |1> is encoded as |1>≡(|t1>+|t2>)/√{square root over (2)}.
Abstract translation: 一种用于将量子密钥从第一方分发到第二方的系统和方法。 第一节点连接到公共信道，其中第一节点包括连接到量子信道的脉冲位置调制编码器。 第二节点连接到公共信道，其中第二节点包括连接到量子信道的脉冲位置调制解码器。 脉冲位置调制编码器编码量子态| 0>和| 1>，并且经由量子通道将编码的量子态从第一节点传送到第二节点。 量子态| 1>被编码为| 1>≡（| t1> + | t2>）/√{平方根超过（2）}。
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Patent Agency Ranking
23.发明授权公开(公告)号：US09246302B2
公开(公告)日：2016-01-26
申请号：US14330057
申请日：2014-07-14
Applicant: Raytheon Company
Inventor： Steven R. Wilkinson , Todd O. Clatterbuck , Matthew T. Cashen , Gabriel N. Price , Jeffrey L. Sabala
CPC classification number: H01S3/13 , G02F1/3526 , G04F5/14 , H01S3/0057 , H01S3/0092 , H01S3/1303 , H01S3/1305 , H01S3/1307 , H01S3/139 , H01S3/1392
Abstract: Embodiments of an ultra-stable frequency reference generating system and methods for generating an ultra-stable frequency reference using a two-photon Rubidium transition are generally described herein. In some embodiments, a cavity-stabilized reference laser comprising a laser source is locked to a stabilized cavity. A Rubidium cell is interrogated by a stabilized laser output to cause at least a two-photon Rubidium transition and a detector may detect fluorescence resulting from spontaneous decay of the upper state Rubidium transition. The output of the detector is provided at a wavelength of the fluorescence to lock the cavity-stabilized reference laser to generate a stabilized laser output. A frequency comb stabilizer may be locked to the stabilized laser output to generate a super-continuum of optical wavelengths for use in generating an ultra-stable frequency reference.
Abstract translation: 本文通常描述超稳定频率参考产生系统的实施例和使用双光子铷跃迁产生超稳定频率参考的方法。 在一些实施例中，包括激光源的腔稳定的参考激光器被锁定到稳定的腔。 通过稳定的激光输出询问铷电池，以产生至少两光子铷转变，并且检测器可以检测由上状态铷跃迁的自发衰变产生的荧光。 检测器的输出以荧光的波长提供，以锁定腔稳定的参考激光器以产生稳定的激光输出。 频率梳稳定器可以被锁定到稳定的激光输出，以产生用于产生超稳定频率参考的光波长的超连续体。
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公开(公告)号：US10139704B1
公开(公告)日：2018-11-27
申请号：US15658069
申请日：2017-07-24
Applicant: Raytheon Company
Inventor： Bishara Shamee , Steven R. Wilkinson , Makan Mohageg
Abstract: A high-speed analog-to-digital converter can produce a digital signal representative of an analog input electrical signal. An optical amplitude modulator can modulate an input optical pulse train using the analog input electrical signal. An optical splitter can split the modulated optical pulse train into a plurality of modulated optical pulse trains. Optical path delays can stagger in time the modulated optical pulse trains to form a plurality of time-staggered modulated optical pulse trains. Demodulators can detect and filter the time-staggered modulated optical pulse trains to form a respective plurality of time-averaged voltages. Analog-to-digital converters can output a respective plurality of digital time series representative of the respective time-averaged voltages. An interleaver can aggregate the plurality of digital time series to form the digital signal, which has a sample rate greater than a repetition rate of the input optical pulse train.
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公开(公告)号：US20170118009A1
公开(公告)日：2017-04-27
申请号：US14921157
申请日：2015-10-23
Applicant: Raytheon Company
Inventor： Steven R. Wilkinson , Bishara Shamee
CPC classification number: G01S3/00 , G02F7/00 , H01S3/1303 , H01S3/1305 , H01S3/1307 , H03K3/42 , H03K5/13 , H03M1/0624 , H03M1/0836 , H03M1/1215 , H03M1/662
Abstract: An apparatus comprises a photonic oscillator circuit configured to generate optical signals that are separated by a uniform delay; radio frequency (RF) generating circuitry configured to receive the optical signals and produce a series of reference clock signals having a same clock signal frequency, wherein each reference clock signal in the series includes a uniform delay from a previous clock signal in the series; and a plurality of analog-to-digital converter (ADC) circuits, wherein an ADC circuit includes a signal input to directly receive an RF input signal that is continuous in time and amplitude, and a clock input to receive a reference clock signal of the repeating series of reference clock signals, wherein the ADC circuits are configured to sample a RF input signal at the frequency of the reference clock signal with the uniform delay to sample interleaved digital values representing the RF signal.
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公开(公告)号：US09356703B2
公开(公告)日：2016-05-31
申请号：US14336129
申请日：2014-07-21
Applicant: Raytheon Company
Inventor： Steven R. Wilkinson , Gabriel N. Price
IPC: H04B10/00 , H04B10/516 , H04B10/548 , H04B10/61 , H04L27/20 , H04L27/26 , H04L27/38 , H04J14/02
CPC classification number: H04B10/516 , H04B10/548 , H04B10/61 , H04B10/611 , H04J14/0298 , H04L27/2096 , H04L27/2697 , H04L27/3818
Abstract: Communication apparatus and techniques, such as for optical communication, can include providing a reference frequency derived from an atomic energy level transition or a molecular energy level transition, generating at least two specified optical carrier signals at least in part using the reference frequency, coherently modulating the specified optical carrier signals using respective baseband information signals to provide respective coherently-modulated optical subcarriers. A combined optical information signal comprising the optical subcarriers can be transmitted to a receiver, such as via a fiber optic cable. In an example, a received optical information signal can be optically Fourier transformed to provide respective coherent outputs, which can be coherently downconverted.
Abstract translation: 诸如用于光通信的通信设备和技术可以包括提供从原子能级转换或分子能级转换导出的参考频率，至少部分地使用参考频率产生至少两个指定的光载波信号，相干调制 指定的光载波信号使用相应的基带信息信号来提供各自的相干调制光子载波。 包括光子载波的组合光信息信号可以例如经由光纤电缆发送到接收机。 在一个示例中，接收到的光信息信号可以被光学傅里叶变换以提供相干相干输出，其可以被相干地下变频。
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公开(公告)号：US20160028535A1
公开(公告)日：2016-01-28
申请号：US14337675
申请日：2014-07-22
Applicant: Raytheon Company
Inventor： Steven R. Wilkinson , Ulvi Yurtsever
CPC classification number: H04L7/0012 , H04B7/18515 , H04B7/18517 , H04B7/18519 , H04W56/00
Abstract: A system and method of synchronizing clocks within a system having a plurality of base stations, wherein each base station includes a frequency locked clock. A fast moving emitter transmits pulses that are received at each base station. A time of arrival for each pulse received by each base station is recorded and the recorded times of arrival are communicated to at least one of the other base stations. The clocks are synchronized as a function of the recorded times of arrival received from each base station.
Abstract translation: 一种在具有多个基站的系统内同步时钟的系统和方法，其中每个基站包括频率锁定时钟。 快速移动发射器发射在每个基站接收的脉冲。 记录每个基站接收到的每个脉冲的到达时间，并将记录的到达时间传送到其他基站中的至少一个。 时钟作为从每个基站接收的记录的到达时间的函数而同步。
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