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1. 发明授权

US08331797B2 Polarization-controlled encoding method, encoder, and quantum key distribution system 有权
标题翻译：极化控制编码方法，编码器和量子密钥分配系统
公开(公告)号：US08331797B2
公开(公告)日：2012-12-11
申请号：US10588042
申请日：2004-08-19
申请人： Zhengfu Han , Bing Zhu , Xiaofan Mo , Guangcan Guo
发明人： Zhengfu Han , Bing Zhu , Xiaofan Mo , Guangcan Guo
IPC分类号： H04B10/04 , H04B10/00
CPC分类号： H04L9/0858
摘要： The invention relates to a polarization-controlled encoding method, encoder and quantum key distribution system, which is characterized in that polarization maintaining light path or 90 degree rotation Faraday mirror are used inside the encoder to keep the polarization of the output pulses same, and that in the quantum key distribution system employing the polarization-controlled encoder the pulse emitted from transmitter is unidirectional-transmitted to receiver and then quantum key distribution is implemented using interference in the pulses according to the quantum key distribution protocol. The quantum key distribution system using the polarization-controlled encoder of the invention has the ability of avoiding the wiretapping to transmitter, receiver and quantum channel. Detection units each of which separates reversed photon from other photons are added at the out port of the transmitter and the in port of receiver, respectively, so that Trojan horse is prevented from entering and photons with phase modulated information are prevented from leaving the safe area in receiver. Unconditionally safe key distribution can be accomplished by using the quantum key distribution system of the invention.
摘要翻译：本发明涉及一种偏振控制编码方法，编码器和量子密钥分发系统，其特征在于在编码器内部使用偏振保持光路或90度旋转法拉第镜，以保持输出脉冲的极化相同，在使用偏振控制编码器的量子密钥分配系统中，从发射机发射的脉冲是单向传输到接收机，然后根据量子密钥分配协议在脉冲中使用干扰来实现量子密钥分配。使用本发明的偏振控制编码器的量子密钥分发系统具有避免对发射机，接收机和量子信道的窃听的能力。检测单元分别将反向光子与其他光子分离，分别在发射机的出口和接收机的入口端口分别加入，防止特洛伊木马进入，防止具有相位调制信息的光子离开安全区域在接收器。通过使用本发明的量子密钥分发系统可以实现无条件的安全密钥分发。

2. 发明申请

US20060210270A1 Addressing method of quanta network and quanta network router 有权
公开(公告)号：US20060210270A1
公开(公告)日：2006-09-21
申请号：US10563224
申请日：2004-06-25
申请人： Zhengfu Han , Tao Zhang , Guangcan Guo
发明人： Zhengfu Han , Tao Zhang , Guangcan Guo
IPC分类号： H04J14/00
CPC分类号： G06N99/002 , B82Y10/00 , H04B10/27 , H04B10/70 , H04J14/02 , H04L9/0855 , H04L29/1283 , H04L61/6018 , H04Q2213/13339
摘要： An addressing method of quantum network and a quantum network router are disclosed. There are at least three nodes in the network. The method comprises steps of: appointing an address serial number for every node; sending photon signals with different wavelength from one node to other nodes, wherein the signal source wavelength and node address are regarded as an addressing badge; determining, by every node, the source of signal according to the addressing badge of received photon signals. Quantum network router comprises a photon signal allocator including N sets of optical components, one end of every optical component is mix-wavelength interface, and the other end includes separate wavelength interfaces; an external interface comprising mix-wavelength interfaces of optical components, separate wavelength interfaces of different optical components, which transmit the same wavelength signals, connect one to one. Using this invention can realize quantum communication in deed, includes quantum cryptographic key distribution, quantum network transmission, namely generalized quantum communication, and compose quantum computer addressing bus or quantum computer network, etc.

3. 发明申请

US20140205302A1 PHOTON PHASE MODULATING SYSTEM 有权
标题翻译：光电相位调制系统
公开(公告)号：US20140205302A1
公开(公告)日：2014-07-24
申请号：US13985565
申请日：2013-03-08
申请人： Wei Chen , Shuang Wang , Zhenqiang Yin , Dajun Huang , Yang Yang , Zheng Zhou , Deyong He , Yuhu Li , Zhengfu Han , Yonggang Wang , Guangcan Guo
发明人： Wei Chen , Shuang Wang , Zhenqiang Yin , Dajun Huang , Yang Yang , Zheng Zhou , Deyong He , Yuhu Li , Zhengfu Han , Yonggang Wang , Guangcan Guo
IPC分类号： H04B10/556
CPC分类号： H04B10/5561 , H04B10/70 , H04L9/0852
摘要： The present invention utilizes a high-speed serial data transceiver to generate two high-speed electric pulse signals. After passing through a gain network, the signals are used for driving an electro-optic phase modulator (PM) so as to realize phase modulation of photon signals. The present invention may directly use a high-speed digital signal to realize a four-phase modulation function needed by the BB84 quantum key distribution protocol without using a digital to analog converter or an analog switch. This can prevent modulation rate from being restricted by links including digital-to-analogue conversion, switching of the analogue and the like. A dual-electrode electro-optic phase modulator scheme can also effectively reduce requirements for amplitude of a modulation driving signal, thus facilitating realization of high-speed phase modulation, which meets requirements of quantum key distribution.
摘要翻译：本发明利用高速串行数据收发器来产生两个高速电脉冲信号。通过增益网络后，信号用于驱动电光相位调制器（PM），以实现光信号的相位调制。本发明可以直接使用高速数字信号来实现BB84量子密钥分发协议所需的四相调制功能，而不使用数模转换器或模拟开关。这可以防止调制速率被包括数模转换，模拟转换等的链路所限制。双电极电光相位调制器方案还可以有效降低对调制驱动信号幅度的要求，从而有助于实现高速相位调制，满足量子密钥分配的要求。

4. 发明授权

US07596318B2 Addressing method of quanta network and quanta network router 有权
标题翻译：量子网络和量子网络路由器的寻址方法
公开(公告)号：US07596318B2
公开(公告)日：2009-09-29
申请号：US10563224
申请日：2004-06-25
申请人： Zhengfu Han , Tao Zhang , Guangcan Guo
发明人： Zhengfu Han , Tao Zhang , Guangcan Guo
IPC分类号： H04J14/00
CPC分类号： G06N99/002 , B82Y10/00 , H04B10/27 , H04B10/70 , H04J14/02 , H04L9/0855 , H04L29/1283 , H04L61/6018 , H04Q2213/13339
摘要： An addressing method of quantum network and a quantum network router are disclosed. There are at least three nodes in the network. The method comprises steps of: appointing an address serial number for every node; sending photon signals with different wavelength from one node to other nodes, wherein the signal source wavelength and node address are regarded as an addressing badge; determining, by every node, the source of signal according to the addressing badge of received photon signals. Quantum network router comprises a photon signal allocator including N sets of optical components, one end of every optical component is mix-wavelength interface, and the other end includes separate wavelength interfaces; an external interface comprising mix-wavelength interfaces of optical components, separate wavelength interfaces of different optical components, which transmit the same wavelength signals, connect one to one. Using this invention can realize quantum communication in deed, includes quantum cryptographic key distribution, quantum network transmission, namely generalized quantum communication, and compose quantum computer addressing bus or quantum computer network, etc.
摘要翻译：公开了量子网络和量子网络路由器的寻址方法。网络中至少有三个节点。该方法包括以下步骤：为每个节点指定地址序列号; 将不同波长的光子信号从一个节点发送到其他节点，其中信号源波长和节点地址被认为是寻址徽章; 根据所接收的光子信号的寻址徽章，由每个节点确定信号源。量子网络路由器包括一个包含N组光学元件的光子信号分配器，每个光学元件的一端是混合波长接口，另一端包括单独的波长接口; 外部接口包括光学部件的混合波长接口，发射相同波长信号的不同光学部件的分离波长接口连接一对一。使用本发明可以实现契约中的量子通信，包括量子密码密钥分发，量子网传输，即广义量子通信，组成量子计算机寻址总线或量子计算机网络等。

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