Experimental demonstration of a 4,294,967,296-QAM-based Y-00 quantum stream cipher template carrying 160-Gb/s 16-QAM signals

• DOI: 10.1364/oe.405390
• Publication Date: 2021-01-13T16:47:57Z
• Authors: Xi Chen; Ken Tanizawa; Peter Winzer; Po Dong; Junho Cho; Fumio Futami; Kentaro Kato; Argishti Melikyan; K. W. Kim
• Keywords: Signal Processing (eess.SP); 0103 physical sciences; FOS: Electrical engineering, electronic engineering, information engineering; Electrical Engineering and Systems Science - Signal Processing; 01 natural sciences

We demonstrate a 4,294,967,296-quadrature amplitude modulation (QAM) based Y-00 quantum stream cipher system carrying a 160-Gb/s 16-QAM signal transmitted over 320-km SSMF. The ultra-dense QAM cipher template is realized by an integrated two-segment silicon photonics I/Q modulator.