公开(公告)号：US08270841B2

公开(公告)日：2012-09-18

申请号：US12376343

申请日：2006-08-04

Applicant: Tsuyoshi Nishioka ,  Shigeki Takeuchi ,  Alexandre Soujaeff ,  Toshio Hasegawa ,  Junnichi Abe

Inventor： Tsuyoshi Nishioka ,  Shigeki Takeuchi ,  Alexandre Soujaeff ,  Toshio Hasegawa ,  Junnichi Abe

IPC: H04B10/00

CPC classification number: H04L9/0852 ,  H04B10/70

Abstract: The present invention is directed to realize a stable and highly-efficient quantum communication without being influenced by the jitter of the heralding signal. In regard to the quantum encryption transmitting apparatus 200, the pulse-driven heralded single-photon source 201 generates a photon pair, outputs one photon of the photon pair, and outputs the other photon of the photon pair as a heralding signal. The timing adjuster 202 synchronizes the heralding signal with a clock signal for pulse driving the pulse-driven heralded single-photon source 201, and outputs as a trigger signal. The quantum communication modulating unit 203 implements the signal modulation to a quantum signal, in timing with the trigger signal, and transmits the quantum signal to the quantum encryption receiving apparatus 300 via the quantum communication path 101. The heralding signal transmitting unit 205 transmits the heralding signal to the quantum encryption receiving apparatus 300 via the heralding signal communication path 102. The clock signal transmitting unit 206 transmits the clock signal to the quantum encryption receiving apparatus 300 via the clock communication path 103.

Abstract translation: 本发明旨在实现稳定且高效的量子通信，而不受预告信号的抖动的影响。 对于量子加密发送装置200，脉冲驱动的预测单光子源201生成光子对，输出光子对的一个光子，并输出光子对的另一个光子作为预变信号。 定时调整器202使预处理信号与用于脉冲驱动预测的单光子源201的脉冲驱动的时钟信号同步，并作为触发信号输出。 量子通信调制单元203利用触发信号定时对量子信号进行信号调制，并通过量子通信路径101将量子信号发送到量子加密接收装置300.预报信号发送单元205发送预告 经由预测信号通信路径102向量子加密接收装置300发送信号。时钟信号发送部206经由时钟通信路径103将时钟信号发送到量子加密接收装置300。

公开(公告)号：US20100226659A1

公开(公告)日：2010-09-09

申请号：US12376343

申请日：2006-08-04

Applicant: Tsuyoshi Nishioka ,  Shigeki Takeuchi ,  Alexandre Soujaeff ,  Toshio Hasegawa ,  Junnichi Abe

Inventor： Tsuyoshi Nishioka ,  Shigeki Takeuchi ,  Alexandre Soujaeff ,  Toshio Hasegawa ,  Junnichi Abe

IPC: H04B10/04 ,  H04B10/06 ,  H04B10/00

CPC classification number: H04L9/0852 ,  H04B10/70

Abstract: The present invention is directed to realize a stable and highly-efficient quantum communication without being influenced by the jitter of the heralding signal. In regard to the quantum encryption transmitting apparatus 200, the pulse-driven heralded single-photon source 201 generates a photon pair, outputs one photon of the photon pair, and outputs the other photon of the photon pair as a heralding signal. The timing adjuster 202 synchronizes the heralding signal with a clock signal for pulse driving the pulse-driven heralded single-photon source 201, and outputs as a trigger signal. The quantum communication modulating unit 203 implements the signal modulation to a quantum signal, in timing with the trigger signal, and transmits the quantum signal to the quantum encryption receiving apparatus 300 via the quantum communication path 101. The heralding signal transmitting unit 205 transmits the heralding signal to the quantum encryption receiving apparatus 300 via the heralding signal communication path 102. The clock signal transmitting unit 206 transmits the clock signal to the quantum encryption receiving apparatus 300 via the clock communication path 103.

Abstract translation: 本发明旨在实现稳定且高效的量子通信，而不受预告信号的抖动的影响。 对于量子加密发送装置200，脉冲驱动的预测单光子源201生成光子对，输出光子对的一个光子，并输出光子对的另一个光子作为预变信号。 定时调整器202使预处理信号与用于脉冲驱动预测的单光子源201的脉冲驱动的时钟信号同步，并作为触发信号输出。 量子通信调制单元203利用触发信号定时对量子信号进行信号调制，并通过量子通信路径101将量子信号发送到量子加密接收装置300.预报信号发送单元205发送预告 经由预测信号通信路径102向量子加密接收装置300发送信号。时钟信号发送部206经由时钟通信路径103将时钟信号发送到量子加密接收装置300。