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1. 发明申请

US20110127415A1 SYSTEM FOR CONTROLING AND CALIBRATING SINGLE PHOTON DETECTION DEVICES 有权
标题翻译：用于控制和校准单光子检测装置的系统
公开(公告)号：US20110127415A1
公开(公告)日：2011-06-02
申请号：US12957552
申请日：2010-12-01
申请人： Gregory S. Kanter
发明人： Gregory S. Kanter
IPC分类号： G01D18/00 , G01J1/44 , H03K17/78
CPC分类号： G01D18/00 , G01J1/44 , H03K17/78
摘要： A single photon detection system and method are disclosed which have a control block for helping to monitor and optimize performance, especially at high detection rates. The system is based on photon detectors constructed with avalanche photodiodes (APD) gated in time to operate in the Geiger mode. An electrical reference frequency is generated which is subtracted from the APD output in order to better isolate the breakdown event. The resulting signal is sampled and analyzed to allow the control unit to optimize the magnitude and phase of the electrical reference frequency. The control unit may also change the gate pulse shape and phase, including by the use of a digital-to-analog converter. The gate pulse can be shifted off an input optical pulse so as to estimate dark count rate, or shifted to measure a reference input signal to estimate detection efficiency.
摘要翻译：公开了一种单光子检测系统和方法，其具有用于帮助监测和优化性能的控制块，特别是在高检测率下。该系统基于利用雪崩光电二极管（APD）构建的光子探测器，以在盖革模式下及时运行。产生从APD输出中减去的电参考频率，以便更好地隔离故障事件。对所得到的信号进行采样和分析，以允许控制单元优化电参考频率的幅度和相位。控制单元还可以通过使用数模转换器来改变门脉冲形状和相位。栅极脉冲可以从输入光脉冲偏移，以估计暗计数率，或移位以测量参考输入信号以估计检测效率。

2. 发明申请

US20140185125A1 System and method for improving performance of photonic samplers 有权
标题翻译：提高光子取样器性能的系统和方法
公开(公告)号：US20140185125A1
公开(公告)日：2014-07-03
申请号：US13733669
申请日：2013-01-03
申请人： Gregory S. Kanter
发明人： Gregory S. Kanter
IPC分类号： G02F1/35
CPC分类号： G02F1/3517 , G02F1/21 , G02F7/00 , G02F2201/126 , H03M1/124
摘要： An interferometer used for modulating an optical signal with an electrical signal is described, where the optical signal can be subsequently detected so as to sample and digitize the electrical signal. Nonlinear optical elements can be located inside the interferometer to reduce the minimum detectable electrical input signal size. The interferometer can contain more than two arms to improve the tolerable dynamic range of the electrical signal. In some cases some outputs of the interferometer are dependent on the electrical input frequency while others have minimal frequency dependence, thereby allowing the frequency of the input electrical signal to be measured more easily. Ideally the modulator operates in a push-pull mode with a single electrode for the input electrical signal. Such a modulator can be constructed by using appropriate optical delay elements.
摘要翻译：描述了用于用电信号调制光信号的干涉仪，其中可以随后检测光信号以便对电信号进行采样和数字化。非线性光学元件可以位于干涉仪内部，以减少最小可检测的电输入信号尺寸。干涉仪可以包含两个以上的臂以改善电信号的可容许的动态范围。在某些情况下，干涉仪的一些输出取决于电气输入频率，而其他输出频率的频率依赖性较小，从而可以更容易地测量输入电信号的频率。理想地，调制器以推挽模式工作，具有用于输入电信号的单个电极。这样的调制器可以通过使用适当的光学延迟元件来构造。

3. 发明申请

US20130089204A1 QUANTUM ENCRYPTED DATA TRANSMISSION IN OPTICALLY-AMPLIFIED WDM COMMUNICATIONS 审中-公开
标题翻译：光扩展WDM通信中的QUANTUM加密数据传输
公开(公告)号：US20130089204A1
公开(公告)日：2013-04-11
申请号：US13270381
申请日：2011-10-11
申请人： Prem Kumar , Gregory S. Kanter , Eric Corndorf , Chuang Liang
发明人： Prem Kumar , Gregory S. Kanter , Eric Corndorf , Chuang Liang
IPC分类号： H04K1/00
CPC分类号： H04L9/0852 , H04B10/70
摘要： A quantum cryptographic protocol is proposed, which uses two-mode coherent states and an M-ary modulation format determined in part by an expanded secret key. The encrypted signal is optically amplifiable, resulting in a polarization independent system that is compatible with the existing WDM communications infrastructure.
摘要翻译：提出了一种量子加密协议，其使用双模相干状态和部分由扩展的密钥确定的M进制调制格式。加密的信号是光学可放大的，导致与现有的WDM通信基础设施兼容的与偏振无关的系统。

4. 发明授权

US08265280B2 System and method of entangled photons generation 有权
标题翻译：纠缠光子生成的系统和方法
公开(公告)号：US08265280B2
公开(公告)日：2012-09-11
申请号：US12372213
申请日：2009-02-17
申请人： Kim Lee , Gregory S. Kanter
发明人： Kim Lee , Gregory S. Kanter
IPC分类号： G02F1/39
CPC分类号： H04B10/70
摘要： The present invention provides an apparatus and method for producing entangled photon pairs via four-wave mixing in optical fiber. The source of entangled photons is designed to be stable with no manual alignment. This is accomplished with proper system design using polarization maintaining fibers or polarization controllers with feedback control. The source may contain a method of switching the output from an unpolarized entangled state to a polarized state, where the polarized state can be used to more easily align subsequent photon measurement systems to the proper configuration for measuring the unpolarized entangled state. The invention further provides a means to engineer the apparatus, including the use of a periodic filter common to both entangled pairs, such that the wavelength spacing between the pairs can be optimized such that multiple pairs can be generated with reduced adverse influence from Raman scattering.
摘要翻译：本发明提供一种通过光纤中的四波混合产生缠结光子对的装置和方法。纠缠光子的来源设计为稳定，无需手动对准。这是通过使用偏振维持光纤或具有反馈控制的偏振控制器的适当系统设计来实现的。源可以包含将非极化纠缠状态的输出切换到极化状态的方法，其中极化状态可以用于更容易地将随后的光子测量系统对准到用于测量非偏振纠缠状态的适当配置。本发明还提供了一种对设备进行工程的方法，包括使用两个纠缠对共同的周期滤波器，使得可以优化成对之间的波长间隔，使得可以产生具有减少的拉曼散射的不利影响的多对。

5. 发明申请

US20120212360A1 Photonic assisted analog-to-digital conversion using phase detection 有权
标题翻译：使用相位检测进行光子辅助模数转换
公开(公告)号：US20120212360A1
公开(公告)日：2012-08-23
申请号：US13400324
申请日：2012-02-20
申请人： Gregory S. Kanter , Daniel Reilly
发明人： Gregory S. Kanter , Daniel Reilly
IPC分类号： H03M1/10 , H03M1/12
CPC分类号： H03M1/1245 , G02F7/00 , H03M1/1009
摘要： A method of digitizing an analog electrical signal combines optical and electronic techniques in order to improve the resolution, sampling rate, input frequency range, or flexibility. It implements an optical interferometric modulator, which modulates an input optical signal by the input electrical signal combined with a calibration signal. A set of two or more photoreceivers receiving the output optical signals from the optical modulator produce output electrical signals, which are digitized and processed in a DSP to produce a digitized version of the electrical input signal, and a digitized calibration signal value is used to optimize the input electrical signal digitization. The method and the device can be used in many fields including instrumentation, communications, and imaging.
摘要翻译：数字化模拟电信号的方法结合了光学和电子技术，以便提高分辨率，采样率，输入频率范围或灵活性。它实现了光学干涉式调制器，其通过与校准信号组合的输入电信号来调制输入光信号。接收来自光调制器的输出光信号的一组两个或多个光接收器产生输出电信号，其在DSP中被数字化和处理以产生电输入信号的数字化版本，并且数字化校准信号值被用于优化输入电信号数字化。该方法和设备可用于许多领域，包括仪器，通信和成像。

6. 发明授权

US07831049B1 Enhanced encryption method and system for ultra secure applications 有权
标题翻译：用于超安全应用的增强加密方法和系统
公开(公告)号：US07831049B1
公开(公告)日：2010-11-09
申请号：US11747106
申请日：2007-05-10
申请人： Gregory S. Kanter
发明人： Gregory S. Kanter
IPC分类号： H04K1/00 , G09C3/00 , G06F11/00
CPC分类号： H04K1/006 , H04L9/0656 , H04L9/0858 , H04L9/0891 , H04L2209/04
摘要： Techniques to bolster the security of an AlphaEta cryptosystem using spectral phase encoding. In one aspect, a spatial light modulator (SLM) is used to change the spectral code (spectral phase) of each optical bit in response to the output of an extended key generator based on a cryptographic algorithm. In other aspects, additional time and polarization modulations are used to maintain high security levels as well as good performance levels. Such methods are combined with traditional key generation methods such as key-distribution centers or one-way mathematical algorithms to bolster the security of traditional key generation as well.
摘要翻译：使用频谱相位编码来加强AlphaEta密码系统的安全性的技术。在一个方面，空间光调制器（SLM）用于响应于基于密码算法的扩展密钥发生器的输出来改变每个光学位的频谱（频谱相位）。在其他方面，使用额外的时间和极化调制来维持高安全级别以及良好的性能水平。这些方法与传统的密钥分发中心或单向数学算法等密钥生成方法相结合，以增强传统密钥生成的安全性。

7. 发明申请

US20190109564A1 SYSTEM AND METHOD FOR HIGH PERFORMANCE PHOTONIC DOWN-CONVERSION OF MICROWAVE SIGNALS 审中-公开
公开(公告)号：US20190109564A1
公开(公告)日：2019-04-11
申请号：US16156562
申请日：2018-10-10
申请人： NuCrypt, LLC
发明人： Gregory S. KANTER
IPC分类号： H03D7/16 , H04B1/00 , H04B10/556
CPC分类号： H03D7/163 , H03D7/161 , H03D7/165 , H04B1/006 , H04B10/5561
摘要： A method for down-converting an RF signal is described that optically phase modulates an RF signal onto an optical carrier then applies an RF local oscillator (LO) phase modulation which down-converts the RF signal to an intermediate frequency after appropriate optical signal processing and optical-to-electrical photo-detection. The LO phase modulator is constructed such that a common hot electrode is shared among more than one optical mode, where an optical mode can be separate waveguides or optical wavelengths. The relative phase of the LO frequency applied to each optical mode can be different between the different optical modes. The resulting down-converted photo-detected signals of different LO-phase can be processed to reduce noise. A single LO phase modulator can down-convert multiple RF signals carried by multiple optical wavelengths, and a harmonic generation stage with multi-phase-matching peaks can be used to linearize each RF signal.

8. 发明授权

US08385548B2 System and method for entangled photons generation and measurement 有权
标题翻译：纠缠光子产生和测量的系统和方法
公开(公告)号：US08385548B2
公开(公告)日：2013-02-26
申请号：US12708184
申请日：2010-02-18
申请人： Gregory S. Kanter , Shawn Wang
发明人： Gregory S. Kanter , Shawn Wang
IPC分类号： H04L9/00
CPC分类号： H04B10/70
摘要： Apparatus and method for producing quantum entangled signal and idler photon pairs is provided. The apparatus makes use of a nonlinear optical fiber to generate the entangled photons. The use of an external broad band light source for alignment of any downstream measurement apparatuses is disclosed. One or more polarized output signals can be generated at both the signal and idler wavelengths using the alignment source, allowing the downstream measurement apparatuses to be aligned using classical light. Multiple signal and idler wavelengths can be generated and aligned using such a system.
摘要翻译：提供了用于产生量子纠缠信号和空闲光子对的装置和方法。该装置利用非线性光纤产生纠缠的光子。公开了使用用于任何下游测量装置对准的外部宽带光源。可以使用对准源在信号和惰性波长两者处产生一个或多个极化输出信号，从而允许下游测量装置使用古典光进行对准。可以使用这样的系统生成和对齐多个信号和惰轮波长。

9. 发明申请

US20120076301A1 OPTICAL SYSTEM WITH IMPARTED SECURE CODES 有权
标题翻译：具有安全代码的光学系统
公开(公告)号：US20120076301A1
公开(公告)日：2012-03-29
申请号：US13239817
申请日：2011-09-22
申请人： Gregory S. Kanter
发明人： Gregory S. Kanter
IPC分类号： H04K1/04 , H04K1/00
CPC分类号： H04K1/04 , H04K1/02 , H04K1/06
摘要： A secure optical communication system and method are disclosed. Short optical pulses are first modulated with data, then dispersed in time so that they spread out over multiple bit periods, then the desired code is applied to the dispersed pulses. The encoding may include frequency shifts or phase shifts or other. The dispersed optical symbols overlap in time so an applied code chip thus acts on multiple symbols simultaneously. There are generally multiple code chips per dispersed symbol. The coding device does not need to be synchronized to the data rate. Multiple wavelength division multiplexed channels may be encoded simultaneously. The signal propagates to a decoder that is synchronized with encoder to apply a complementary code thereby canceling out the effect of the encoder. The encoder and decoder can be realized by varying the wavelength of an optical pump to a parametric amplifier, allowing for a wide-band frequency shift.
摘要翻译：公开了一种安全的光通信系统和方法。短光脉冲首先用数据调制，然后分散在时间上，使它们在多个位周期内扩展，然后将所需的代码应用于分散的脉冲。编码可以包括频移或相移等。分散的光学符号在时间上重叠，因此所应用的码片因此同时作用于多个符号。每个分散符号通常有多个代码片。编码设备不需要与数据速率同步。可以同时编码多个波分复用信道。信号传播到与编码器同步的解码器，以应用互补码，从而消除编码器的影响。可以通过将光泵的波长改变为参数放大器来实现编码器和解码器，从而允许宽带频移。

10. 发明授权

US11588557B2 Apparatus and method for shifting a frequency of an optical signal 有权
公开(公告)号：US11588557B2
公开(公告)日：2023-02-21
申请号：US17684520
申请日：2022-03-02
申请人： NuCrypt, LLC
发明人： Gregory S. Kanter
IPC分类号： H04B10/572 , H04B10/61 , H04B10/50 , H04B10/2557 , H04B10/556 , H04B10/67 , H04B10/291
摘要： A system and method for applying a time-varying phase shift to an optical signal is described. Such a phase shift results in a frequency shift of the optical signal, which can be useful for instance in sensing applications. The design uses cross phase modulation (XPM) in a nonlinear medium such as optical fiber. The pump producing the XPM experiences a change in energy along the medium, for instance due to loss. The pump and signal have mismatched group velocities such that they walk-off each other in time, and the pump pulse repetition rate is chosen so that it has a specific relationship with respect to the walk-off. The design is compatible with very low signal loss and does not require high fidelity electrical control signals. It is capable of high-efficiency one-directional serrodyne frequency shifts, as well as producing symmetric frequency shifts. It can also be made polarization independent.

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