Title: Method for optical communicating waveband single photon high-efficient detection
Application Number: 200410084623 Application Date: 2004.11.26
Publication Number: 1614495 Publication Date: 2005.05.11
Approval Pub. Date: 2007.05.23 Granted Pub. Date: 2007.05.23
International Classifi-cation: H01S5/10;H01S5/026;H04K1/00;G02F1/35
Applicant(s) Name: Huadong Normal Univ. Address:
Inventor(s) Name: Zeng Heping;Zhou Chunyuan;Wu Guang
Attorney & Agent: xu xiaorong
Abstract:
    A method for detecting single photon in optical communication waveband includes placing nonlinear crystal in active resonant cavity of pumping light, shooting single photon acting as signal light into nonlinear crystal pumped by light, making the pumping light frequency be larger than single photon source frequency and generating sum frequency of signal light with pumping light, using silicon APDs to carry out detection after near infrared waveband single photon signal light being filtered.
Time: 15