Title :
Gigacounts/s photon detection and its applications
Author :
Yuan, Zhiliang ; Dynes, James ; Dixon, Alex ; Sharpe, Andrew ; Shields, Andrew
Author_Institution :
Cambridge Res. Lab., Toshiba Res. Eur. Ltd., Cambridge, UK
Abstract :
We report gigacounts/s photon counting using self-differencing InGaAs avalanche photodiodes. Its application to quantum key distribution has enabled a secure key-rate of 1Mb/s over 50km in laboratory and 304kb/s over 45km in the field-test.
Keywords :
III-V semiconductors; avalanche photodiodes; gallium arsenide; indium compounds; quantum communication; InGaAs; bit rate 1 Mbit/s; bit rate 304 kbit/s; distance 45 km; distance 50 km; photon counting; photon detection; quantum key distribution; secure key-rate; self-differencing avalanche photodiodes; Avalanche photodiodes; Bit rate; Detectors; Indium gallium arsenide; Laboratories; Photonics; Protocols;
Conference_Titel :
Photonics Society Summer Topical Meeting Series, 2011 IEEE
Conference_Location :
Montreal, QC
Print_ISBN :
978-1-4244-5730-4
DOI :
10.1109/PHOSST.2011.6000024
