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    Optical system for creating interference between photons
    51.
    发明授权
    Optical system for creating interference between photons 失效
    用于产生光子之间的干涉的光学系统

    公开(公告)号：US08605288B2

    公开(公告)日：2013-12-10

    申请号：US12600598

    申请日：2008-05-16

    申请人： Anthony John Bennett ,  Richard Mark Stevenson ,  Andrew James Shields

    发明人： Anthony John Bennett ,  Richard Mark Stevenson ,  Andrew James Shields

    IPC分类号： G01B9/02

    CPC分类号： G01C19/72 ,  H04B10/548 ,  H04L9/0858

    摘要： An optical system including: a photon source; first directing elements configured to direct photons to follow a first path through the optical system; second directing elements configured to direct photons to follow a second path through the optical system, wherein the second path is the reverse of the first path, photons travelling through the first path having a different polarization to those travelling through the second path; and a mechanism varying the relative phase shift between photons following the first path and photons following the second path.

    摘要翻译： 一种光学系统，包括：光子源; 第一引导元件被配置成引导光子跟随通过光学系统的第一路径; 第二引导元件被配置为引导光子跟随通过光学系统的第二路径，其中第二路径与第一路径相反，穿过第一路径的光子具有与行进通过第二路径的那些不同的极化; 以及改变跟随第一路径的光子与第二路径之后的光子之间的相对相移的机制。

    PHOTON SOURCE
    52.
    发明申请
    PHOTON SOURCE 有权
    光电源

    公开(公告)号：US20130256504A1

    公开(公告)日：2013-10-03

    申请号：US13727058

    申请日：2012-12-26

    申请人： Richard Mark STEVENSON ,  Joanna Krystyna Skiba-Szymanska ,  Anthony John Bennett ,  Andrew James Shields

    发明人： Richard Mark STEVENSON ,  Joanna Krystyna Skiba-Szymanska ,  Anthony John Bennett ,  Andrew James Shields

    IPC分类号： G02F1/225

    CPC分类号： G02F1/2257 ,  B82Y10/00 ,  B82Y20/00 ,  G02F1/01708 ,  G02F2001/01791 ,  G02F2202/32 ,  G06N99/002

    摘要： An optical device comprising a quantum dot provided in a resonant confinement structure, an output from said confinement structure and a pulsed excitation source for said quantum dot, wherein the quantum dot is configured to allow the emission of photons having a first energy in response to a pulse from said excitation source, said resonant confinement structure providing optical confinement, the first energy being different to the resonant energy of the resonant confinement structure, the optical device further comprising a timing unit, said timing unit being configured to select photons which have been emitted from the quantum dot due to excitation by a pulse, the timing unit selecting photons emitted after the duration of the pulse which caused the emission of the photons.

    摘要翻译： 一种光学装置，包括设置在谐振限制结构中的量子点，来自所述限制结构的输出和用于所述量子点的脉冲激励源，其中所述量子点被配置为允许响应于所述量子点发射具有第一能量的光子 所述谐振限制结构提供光限制，所述第一能量与所述谐振限制结构的谐振能不同，所述光学装置还包括定时单元，所述定时单元被配置为选择已发射的光子 由于由脉冲激发而产生的量子点，定时单元选择在导致光子发射的脉冲持续时间之后发射的光子。

    Quantum communication system
    54.
    发明授权
    Quantum communication system 有权
    量子通讯系统

    公开(公告)号：US08374350B2

    公开(公告)日：2013-02-12

    申请号：US11530349

    申请日：2006-09-08

    申请人： Zhiliang Yuan ,  Andrew James Shields

    发明人： Zhiliang Yuan ,  Andrew James Shields

    IPC分类号： H04K1/00 ,  H04L9/08

    CPC分类号： H04L63/1441 ,  H04B10/70 ,  H04L9/002 ,  H04L9/0858 ,  H04L9/3226 ,  H04L63/08 ,  H04L63/1466

    摘要： A system for transmitting quantum information includes a sending unit including an encoder configured to encode a carrier with quantum information by setting a quantum state of the carrier, the quantum state determined according to the combination of a first component and a second component, and a receiving unit including a decoder configured to perform a measurement on the carrier using a measurement basis selected to cancel the second component and decode the quantum information from the carrier.

    摘要翻译： 一种用于发送量子信息的系统包括：发送单元，包括：编码器，被配置为通过设置载波的量子态来量化信号来编码载波;根据第一分量和第二分量的组合确定的量子态; 单元，其包括被配置为使用所选择的测量基础对所述载波执行测量以解除所述第二分量并且从所述载波解码所述量子信息的解码器。

    COMMUNICATION SYSTEM AND METHOD
    55.
    发明申请
    COMMUNICATION SYSTEM AND METHOD 有权
    通信系统和方法

    公开(公告)号：US20120294625A1

    公开(公告)日：2012-11-22

    申请号：US13476816

    申请日：2012-05-21

    申请人： James DYNES ,  Zhiliang Yuan ,  Andrew W. Sharpe ,  Andrew James Shields

    发明人： James DYNES ,  Zhiliang Yuan ,  Andrew W. Sharpe ,  Andrew James Shields

    IPC分类号： H04B10/00

    CPC分类号： H04L7/0008 ,  H04B10/70 ,  H04L9/0852

    摘要： A communication system comprising an emitter of weak light pulses, a detector which is capable of detecting single photons, and a source of a clock signal, wherein said emitter and detector are synchronised using said clock signal, the system further comprising a frequency divider for said clock signal to produce a reduced frequency clock signal and a clock regenerator for regenerating the original clock signal from the reduced frequency clock signal, the system further comprising a communication channel configured to communicate the clock signal between the emitter and detector, the clock signal being reduced before sending through said channel and reconstructed after it has exited said channel.

    摘要翻译： 一种包括弱光脉冲发射器，能够检测单个光子的检测器和时钟信号源的通信系统，其中所述发射器和检测器使用所述时钟信号同步，所述系统还包括用于所述时钟信号的分频器 时钟信号以产生降频时钟信号和时钟再生器，用于从降频时钟信号再生原始时钟信号，该系统还包括被配置为在发射极和检测器之间传送时钟信号的通信信道，时钟信号被减少 在通过所述信道发送之后，在已经退出所述信道之后被重构。

    PHOTON DETECTOR
    56.
    发明申请
    PHOTON DETECTOR 有权
    光电探测器

    公开(公告)号：US20120230702A1

    公开(公告)日：2012-09-13

    申请号：US13421023

    申请日：2012-03-15

    申请人： Zhiliang YUAN ,  Andrew James Shields

    发明人： Zhiliang YUAN ,  Andrew James Shields

    IPC分类号： H04B10/08 ,  H01L31/00 ,  G01J1/44

    CPC分类号： G01J1/44 ,  G01J2001/442 ,  G01J2001/4466 ,  H04B10/697

    摘要： A photon detection system including a photon detector configured to detect single photons, the photon detector being gated such that it produces a periodic output signal and the gating signal having a frequency of at least 50 MHz. The system further includes a combiner for combining the signal from one period with signals from other periods such that periodic variations in the output signal of the detector are suppressed.

    摘要翻译： 一种光子检测系统，包括配置成检测单个光子的光子检测器，所述光子检测器被选通，使得其产生周期性输出信号，并且门控信号具有至少50MHz的频率。 该系统还包括组合器，用于将来自一个周期的信号与来自其它周期的信号相组合，从而抑制检测器的输出信号中的周期性变化。

    PHOTON DETECTOR
    57.
    发明申请
    PHOTON DETECTOR 有权
    光电探测器

    公开(公告)号：US20120063789A1

    公开(公告)日：2012-03-15

    申请号：US13227970

    申请日：2011-09-08

    申请人： Zhiliang YUAN ,  Andrew James Shields

    发明人： Zhiliang YUAN ,  Andrew James Shields

    IPC分类号： H04B10/06 ,  H01J40/14

    CPC分类号： G01J1/44 ,  H01L31/02019 ,  H01L31/02027 ,  H04L9/002 ,  H04L9/0858

    摘要： A photon detection system comprising: an avalanche photodiode; a biasing circuit configured to reverse bias said avalanche photodiode; a first measuring circuit configured to measure avalanche events occurring in said avalanche photodiode as a transient current due to photon absorption; and a second measuring circuit configured to measure the bias current flowing through the avalanche photodiode.

    摘要翻译： 一种光子检测系统，包括：雪崩光电二极管; 偏置电路，被配置为反向偏置所述雪崩光电二极管; 第一测量电路，被配置为测量由于光子吸收而在所述雪崩光电二极管中发生的雪崩事件作为瞬态电流; 以及第二测量电路，被配置为测量流过雪崩光电二极管的偏置电流。