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1. (WO2018184209) PHOTON OUTPUT METHOD AND DEVICE

Pub. No.:    WO/2018/184209    International Application No.:    PCT/CN2017/079728
Publication Date: Fri Oct 12 01:59:59 CEST 2018 International Filing Date: Sat Apr 08 01:59:59 CEST 2017
IPC: H04B 10/70
Applicants: HUAWEI TECHNOLOGIES CO., LTD.
华为技术有限公司
Inventors: XIONG, Chunle
熊春乐
ZHANG, Xiang
张翔
LEONG, Philip
梁恒惠
Title: PHOTON OUTPUT METHOD AND DEVICE
Abstract:
The application provides a photon output method and device, which can improve the efficiency of simultaneously outputting a plurality of indistinguishable single photons in a unit of time. The method comprises: after a previous time window ends and when a heralding photon is detected for the first time, determining that a start time of a current time window is a time when the heralding photon is detected for the first time, wherein the heralding photon and a heralded photon appear as a pair, the heralding photon is used to herald the existence of the heralded photon, and the heralding photon and the heralded photon that appear as a pair are generated by the same photon pair source; in the current time window, detecting a heralding photon after the start time; and adjusting a transmission time of all heralded photons corresponding to all detected heralding photons in the current time window, such that all the heralded photons in the time window are output at the same output time.