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1. 发明申请

US20190250039A1 SYSTEM AND METHOD FOR SPECTRAL FILTERING OF OPTICAL SIGNALS 审中-公开
公开(公告)号：US20190250039A1
公开(公告)日：2019-08-15
申请号：US16275623
申请日：2019-02-14
申请人： Gregory S. KANTER
发明人： Gregory S. KANTER
IPC分类号： G01J3/45 , G02B27/10 , G01B9/02 , G02B5/20
CPC分类号： G01J3/45 , G01B9/02 , G02B5/20 , G02B27/10
摘要： A method for spectral filtering an input optical signal is described. The filtering system uses Brillouin gain inside an interferometer. The interferometer is biased to null signals that propagate without Brillouin gain, but due to asymmetric levels of gain in the interferometer arms the interference null is disturbed for signals of an optical frequency that experience Brillouin gain. The filter thereby preferentially passes signal frequencies that are inside the Brillouin gain bandwidth creating a high extinction ratio filter. The narrow bandwidth of the Brillouin gain effect can allow for spectrally narrow filters such as 30 MHz. The filter can be realized in a stable Sagnac loop configuration even if the pump and signal are combined prior to the Sagnac loop by using a power control device such as an attenuator placed asymmetrically inside the loop. The filter can achieve net gain and can be designed to have a tunable bandwidth.

2. 发明授权

US08902095B2 Photonic assisted optical under-sampling with non-uniform sample intervals 有权
标题翻译：光子辅助光学欠采样不均匀采样间隔
公开(公告)号：US08902095B2
公开(公告)日：2014-12-02
申请号：US13610820
申请日：2012-09-11
申请人： Gregory S. Kanter , Daniel Reilly , Shawn X. Wang
发明人： Gregory S. Kanter , Daniel Reilly , Shawn X. Wang
IPC分类号： H03M1/00 , H03M1/12
CPC分类号： H03M1/1265 , G02F7/00
摘要： An apparatus and method are disclosed to digitize an input electrical signal. A sequence of nonuniformly spaced optical pulses impinges an optical modulator, where the pulses are modulated by the electrical input signal, the optical pulses being detected by one or more photoreceivers, the photoreceiver outputs being electrically sampled in analog-to-digital converters and then processed in a digital signal processor (DSP) in order to measure the electrical input signal. The series of nonuniform pulses are formed by interleaving L uniformly spaced pulse streams each of repetition period T and where fmax, the maximum allowable spectral frequency of the input electrical signal, is greater than 4·L·f/2, where f=1/T.
摘要翻译：公开了一种用于对输入电信号进行数字化的装置和方法。不均匀间隔的光脉冲序列冲击光调制器，其中脉冲由电输入信号调制，光脉冲由一个或多个光接收器检测，光接收器输出在模数转换器中进行电采样，然后处理在数字信号处理器（DSP）中为了测量电输入信号。一系列不均匀的脉冲通过交织每个重复周期T的均匀间隔的脉冲流形成，其中fmax，输入电信号的最大允许频谱频率大于4·L·f / 2，其中f = 1 / T.

3. 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。

4. 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。

5. 发明申请

US20110063711A1 SYSTEM AND METHOD FOR GENERATING OPTICAL RADIATION OF CONTROLLABLE SPECTRAL CONTENT 有权
标题翻译：用于产生可控光谱内容的光学辐射的系统和方法
公开(公告)号：US20110063711A1
公开(公告)日：2011-03-17
申请号：US12792272
申请日：2010-06-02
申请人： Gregory S. Kanter
发明人： Gregory S. Kanter
IPC分类号： G02F1/365 , G02F1/39 , G02F1/23
CPC分类号： G02F1/3536 , G02F1/395 , G02F2001/3542 , G02F2203/58 , G02F2203/585 , H04J14/02
摘要： An optical spectrum generator is disclosed, which is based on generating conjugate optical frequencies via the use of two or more nonlinear interactions, where filters are used to select the conjugate output of the preceding nonlinear interaction as the input to the following nonlinear interaction. The cascaded nonlinear interaction is seeded with an incoming optical beam and pumped with multiple pump beams. The conjugate output of the last nonlinear interaction can be fed-back to the input of the first nonlinear interaction thus creating a recirculating path. An add-drop multiplexer is implemented for efficiently combining the pump beams with conjugate beams. The generated output frequencies are related to the difference in frequency between the pumps which can be changed as a function of time to create a time-varying output frequency. The magnitude of the variation in output frequency can be magnified by recirculating the signal through the system multiple times.
摘要翻译：公开了一种光谱发生器，其基于通过使用两个或更多个非线性相互作用产生共轭光频率，其中使用滤波器来选择前面的非线性相互作用的共轭输出作为以下非线性相互作用的输入。级联非线性相互作用用入射光束接种并用多个泵浦光束泵浦。最后的非线性相互作用的共轭输出可以反馈到第一非线性相互作用的输入，从而产生再循环路径。实现了一种分插复用器，用于有效地将泵浦光束与共轭光束组合。所产生的输出频率与泵之间的频率差有关，泵之间的频率随时间的变化而变化，以产生时变输出频率。输出频率变化的大小可以通过多次将信号再循环通过系统来放大。

6. 发明授权

US07697687B2 Streaming implementation of AlphaEta physical layer encryption 失效
标题翻译：流式实现AlphaEta物理层加密
公开(公告)号：US07697687B2
公开(公告)日：2010-04-13
申请号：US11404329
申请日：2006-04-13
申请人： Chuang Liang , Gregory S. Kanter , Eric Corndorf , Prem Kumar
发明人： Chuang Liang , Gregory S. Kanter , Eric Corndorf , Prem Kumar
IPC分类号： H04K1/00
CPC分类号： H04L9/12 , H04L9/0838 , H04L9/0891
摘要： A method of synchronizing the encryption/decryption functions of an AlphaEta physical-layer encryption or key generation system. The method includes the insertion of a header to indicate the start of encryption after clock-synchronization has been established. The method also allows for a side-channel to signal other useful information, such as a loss-of-syncrhonization signal from Bob or to synchronize a dynamic key change.
摘要翻译：一种同步AlphaEta物理层加密或密钥生成系统的加密/解密功能的方法。该方法包括在建立时钟同步之后插入报头以指示加密的开始。该方法还允许侧信道发送其他有用的信息，例如来自Bob的失去同步信号或者使动态密钥更改同步。

7. 发明授权

US10989599B2 System and method for spectral filtering of optical signals 有权
公开(公告)号：US10989599B2
公开(公告)日：2021-04-27
申请号：US16275623
申请日：2019-02-14
申请人： Gregory S. Kanter
发明人： Gregory S. Kanter
IPC分类号： G02B5/28 , G01J3/45 , G02B5/20 , G01B9/02 , G02B27/10 , G02B6/00 , G01J3/12
摘要： A method for spectral filtering an input optical signal is described. The filtering system uses Brillouin gain inside an interferometer. The interferometer is biased to null signals that propagate without Brillouin gain, but due to asymmetric levels of gain in the interferometer arms the interference null is disturbed for signals of an optical frequency that experience Brillouin gain. The filter thereby preferentially passes signal frequencies that are inside the Brillouin gain bandwidth creating a high extinction ratio filter. The narrow bandwidth of the Brillouin gain effect can allow for spectrally narrow filters such as 30 MHz. The filter can be realized in a stable Sagnac loop configuration even if the pump and signal are combined prior to the Sagnac loop by using a power control device such as an attenuator placed asymmetrically inside the loop. The filter can achieve net gain and can be designed to have a tunable bandwidth.

8. 发明授权

US10425708B2 Low loss high speed optical switch 有权
公开(公告)号：US10425708B2
公开(公告)日：2019-09-24
申请号：US15953626
申请日：2018-04-16
申请人： Gregory S. Kanter
发明人： Gregory S. Kanter
IPC分类号： H04B10/516 , H04Q11/00 , H04B10/2507 , H04B10/70 , G02F1/313
摘要： A method for controlling the splitting ratio of an input optical signal to one or more output ports is described. The splitting ratio of a fiber-coupled signal in the communications band is controlled using cross phase modulation from a pump signal in the 980-1090 nm band. This design allows the nonlinear fiber in which the cross phase modulation occurs to be standard single mode fiber having a zero dispersion wavelength between 1250 and 1350 nm, such as SMF-28e fiber, which helps to maintain the lowest possible loss and a low cost while still allowing for power efficient interactions with signal wavelengths in the technologically important 1520-1610 nm band. The design is compatible with low insertion loss, narrow switching windows, and low added noise. The location of the pump pulse can be controlled allowing for the location of an input pulse to be determined.

9. 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。

10. 发明申请

US20090268276A1 SYSTEM AND METHOD OF ENTANGLED PHOTONS GENERATION 有权
标题翻译：光电子发生系统和方法
公开(公告)号：US20090268276A1
公开(公告)日：2009-10-29
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。

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