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公开(公告)号：US20120168612A1
公开(公告)日：2012-07-05
申请号：US13420073
申请日：2012-03-14
IPC分类号： H01L31/107
CPC分类号： H01L31/107 , G01J1/44
摘要： According to one embodiment, a photon detection system determines the number of detected photons. The detection system includes an avalanche photodiode and a measuring unit. The measuring unit measures an avalanche signal induced by illumination before the avalanche current through the device has saturated.
摘要翻译： 根据一个实施例，光子检测系统确定检测到的光子的数量。 检测系统包括雪崩光电二极管和测量单元。 在通过装置的雪崩电流饱和之前，测量单元测量由照明引起的雪崩信号。
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公开(公告)号：US20110108712A1
公开(公告)日：2011-05-12
申请号：US12906624
申请日：2010-10-18
IPC分类号： H01J40/14
CPC分类号： G01J1/44
摘要： A photon detection system comprising an avalanche photodiode and a voltage source for said avalanche photodiode, wherein said avalanche photodiode comprises Silicon or its heterostructures and wherein said voltage source is configured to bias said avalanche photodiode with a voltage component which is static with respect to time and a voltage component which varies with time.
摘要翻译： 一种包括雪崩光电二极管和用于所述雪崩光电二极管的电压源的光子检测系统，其中所述雪崩光电二极管包括硅或其异质结构，并且其中所述电压源被配置为以相对于时间静态的电压分量来偏置所述雪崩光电二极管， 随时间变化的电压分量。
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公开(公告)号：US20100294919A1
公开(公告)日：2010-11-25
申请号：US12829446
申请日：2010-07-02
IPC分类号： H01L31/107
CPC分类号： H01L31/107 , G01J1/44
摘要： According to one embodiment, a photon detection system determines the number of detected photons. The detection system includes an avalanche photodiode and a measuring unit. The measuring unit measures an avalanche signal induced by illumination before the avalanche current through the device has saturated.
摘要翻译： 根据一个实施例，光子检测系统确定检测到的光子的数量。 检测系统包括雪崩光电二极管和测量单元。 在通过装置的雪崩电流饱和之前，测量单元测量由照明引起的雪崩信号。
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公开(公告)号：US07199372B2
公开(公告)日：2007-04-03
申请号：US10890180
申请日：2004-07-14
CPC分类号： H01L31/035236 , B82Y20/00 , G01J1/46 , G01J2001/442 , H01L31/1035
摘要： A circuit for conditioning the output of a single photon detector, the output of said detector having a stepped electrical output signal with respect to time, the circuit comprising a band pass amplifier, said band pass amplifier having a 3 dB breakpoint equal to and less than the inverse of the expected duration of the rising or falling step of said detector output.
摘要翻译： 用于调节单个光子检测器的输出的电路，所述检测器的输出相对于时间具有阶梯式电输出信号，所述电路包括带通放大器，所述带通放大器具有等于或小于3dB的3dB断点 所述检测器输出的上升或下降步长的预期持续时间的倒数。
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公开(公告)号：US07087923B2
公开(公告)日：2006-08-08
申请号：US10860484
申请日：2004-06-04
IPC分类号： H01L29/06
CPC分类号： B82Y20/00 , H01S5/1042 , H01S5/18347 , H01S5/341
摘要： A photon source comprising a quantum dot layer having a plurality of quantum dots with an n-modal distribution in emission wavelength, said n-modal distribution in emission wavelength comprising n peaks in a plot of dot density as a function of emission wavelength where n is an integer of at least 2, the photon source further comprising isolating means for isolating the emission from a predetermined number of quantum dots.
摘要翻译： 一种光子源，包括具有在发射波长中具有n模式分布的多个量子点的量子点层，发射波长中的所述n模式分布包括作为发射波长的函数的点密度的图中的n个峰，其中n是 至少为2的整数，光子源还包括隔离装置，用于将发射与预定数量的量子点隔离。
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公开(公告)号：US09071425B2
公开(公告)日：2015-06-30
申请号：US13422214
申请日：2012-03-16
CPC分类号： H04L9/0858 , H04B10/70
摘要： A quantum communication system including a sending unit and a receiving unit, said sending unit comprising a photon source assembly configured to output a stream of pulses of light having at least two different intensities and a memory configured to store information for determining which pulses should be reference pulses and which pulses should be data pulses, the average intensity of reference pulses being different to the average intensity of data pulses, the receiving unit comprising a memory for storing information for identifying the position of reference pulses within the stream of pulses and a processor for determining the calibration of the quantum communication system from the reference pulses.
摘要翻译： 一种包括发送单元和接收单元的量子通信系统，所述发送单元包括被配置为输出具有至少两个不同强度的光脉冲流的光子源组件和被配置为存储用于确定哪些脉冲应当被参考的信息的存储器 脉冲和哪些脉冲应该是数据脉冲，参考脉冲的平均强度不同于数据脉冲的平均强度，接收单元包括用于存储用于识别脉冲流内的参考脉冲的位置的信息的存储器，以及用于 从参考脉冲确定量子通信系统的校准。
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公开(公告)号：US08238556B2
公开(公告)日：2012-08-07
申请号：US11530329
申请日：2006-09-08
IPC分类号： H04L29/08
CPC分类号： H04L9/0858 , H04B10/70
摘要： A quantum communication system comprising a sending unit and a receiving unit, said sending unit comprising a photon source assembly configured to output a stream of pulses of light having at least two different intensities and a memory configured to store information for determining which pulses should be reference pulses and which pulses should be data pulses, the average intensity of reference pulses being different to the average intensity of data pulses, the receiving unit comprising a memory for storing information for identifying the position of reference pulses within the stream of pulses and a processor for determining the calibration of the quantum communication system from the reference pulses.
摘要翻译： 一种包括发送单元和接收单元的量子通信系统，所述发送单元包括被配置为输出具有至少两个不同强度的光脉冲流的光子源组件和被配置为存储用于确定哪些脉冲应当参考的信息的存储器 脉冲和哪些脉冲应该是数据脉冲，参考脉冲的平均强度不同于数据脉冲的平均强度，接收单元包括用于存储用于识别脉冲流内的参考脉冲的位置的信息的存储器，以及用于 从参考脉冲确定量子通信系统的校准。
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公开(公告)号：US20120177374A1
公开(公告)日：2012-07-12
申请号：US13422214
申请日：2012-03-16
IPC分类号： H04J14/08
CPC分类号： H04L9/0858 , H04B10/70
摘要： A quantum communication system including a sending unit and a receiving unit, said sending unit comprising a photon source assembly configured to output a stream of pulses of light having at least two different intensities and a memory configured to store information for determining which pulses should be reference pulses and which pulses should be data pulses, the average intensity of reference pulses being different to the average intensity of data pulses, the receiving unit comprising a memory for storing information for identifying the position of reference pulses within the stream of pulses and a processor for determining the calibration of the quantum communication system from the reference pulses.
摘要翻译： 一种包括发送单元和接收单元的量子通信系统，所述发送单元包括被配置为输出具有至少两个不同强度的光脉冲流的光子源组件和被配置为存储用于确定哪些脉冲应当被参考的信息的存储器 脉冲和哪些脉冲应该是数据脉冲，参考脉冲的平均强度不同于数据脉冲的平均强度，接收单元包括用于存储用于识别脉冲流内的参考脉冲的位置的信息的存储器，以及用于 从参考脉冲确定量子通信系统的校准。
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公开(公告)号：US20110173696A1
公开(公告)日：2011-07-14
申请号：US12906507
申请日：2010-10-18
IPC分类号： G06F21/00
CPC分类号： H04B10/70 , H04L9/0858
摘要： A quantum communication system, said system comprising: an emitter configured to send signal light pulses having a first intensity and decoy light pulses having a second intensity to a receiver, wherein information is encoded on said signal pulses; a controller configured to set the distribution of signal pulses and decoy pulses and the intensity of the signal pulse such that the maximum average secure bit rate is achieved over the range of potential drift in the decoy pulse intensity during use of the system, while maintaining a non-zero secure bit rate over the range of potential drift in the decoy pulse intensity during use of the system.
摘要翻译： 一种量子通信系统，所述系统包括：发射器，被配置为向接收器发送具有第一强度的信号光脉冲和具有第二强度的诱饵光脉冲，其中信息被编码在所述信号脉冲上; 控制器，被配置为设置信号脉冲和诱饵脉冲的分布以及信号脉冲的强度，使得在系统使用期间在诱饵脉冲强度的电位漂移范围内实现最大平均安全比特率，同时保持 在系统使用期间的诱饵脉冲强度的潜在漂移范围内的非零安全比特率。
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50.发明授权公开(公告)号：US07915604B2
公开(公告)日：2011-03-29
申请号：US09949645
申请日：2001-09-12
申请人： Andrew James Shields
发明人： Andrew James Shields
IPC分类号： H01L33/00
CPC分类号： B82Y30/00 , B82Y20/00 , G02B6/1225 , G02F1/0126 , G02F2203/15 , H01S5/041 , H01S5/10 , H01S5/105 , H01S5/3412
摘要： An optical device which can operate as a single photon emitter 1, comprising a three dimensional optical cavity 7 which spatially confines a photon to the order of the photon wavelength in all three dimensions. The cavity 7 is configured to define preferred emission direction for photons entering the cavity. A photon can be supplied to the cavity using a quantum dot 5. Strong coupling can occur between the cavity 7 and the quantum dot 5 which causes the formation of two hybridised modes. Switching on an off the coupling by irradiating the device with radiation having an energy equal to that of one of the hybridised modes allows the device to act as an optical switch.
摘要翻译： 可以作为单个光子发射器1操作的光学装置，包括在所有三维空间上将光子限制在光子波长的顺序上的三维光学腔7。 空腔7被配置为限定进入空腔的光子的优选发射方向。 可以使用量子点5将光子提供给空腔。在空腔7和量子点5之间可能发生强耦合，这导致形成两种杂化模式。 通过用具有与混合模式中的一种能量相等的能量的辐射照射装置来接通耦合，允许该装置充当光学开关。
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