Experimental circular quantum secret sharing over telecom fiber network

• DOI: 10.1364/oe.21.016663
• Publication Date: 2013-07-04T05:42:01Z
• Authors: Ke-Jin Wei; Hai-Qiang Ma; Jian-Hui Yang
• Keywords: Visibility; Photon polarization; Phase compensation; Quantum key distribution

We present a robust single photon circular quantum secret sharing (QSS) scheme with phase encoding over 50 km mode fiber network using QSS protocol. Our can automatically provide perfect compensation of birefringence and remain stable for long time. A high visibility 99.3% is obtained. Furthermore, our realizes polarization insensitive modulators. The this system be maintained perpetually without any adjustment to the every time we test system.