Title :
A simple, extremely large bandwidth, modulator-free QKD system
Author :
Zhang, Z. ; Locquet, A. ; Voss, P.L. ; Gallion, P.
Author_Institution :
Georgia Tech., Metz
Abstract :
In this paper we propose and analyze a continuous variable QKD system that uses thermal light (or amplified spontaneous emission, or ASE) as a source of inherently Gaussian-modulated, truly random light (from an optical amplifier or an LED) and requires no modulators. This greatly simplifies experimental implementation and can lower system cost. Furthermore, it is easily scalable to higher bandwidths.
Keywords :
quantum cryptography; quantum optics; superradiance; amplified spontaneous emission; continuous variable QKD system; inherently Gaussian-modulated light; modulator-free QKD system; thermal light; Bandwidth; Costs; Gaussian processes; Light emitting diodes; Optical amplifiers; Optical modulation; Semiconductor optical amplifiers; Spontaneous emission; Stimulated emission; Ultraviolet sources;
Conference_Titel :
Lasers and Electro-Optics, 2007 and the International Quantum Electronics Conference. CLEOE-IQEC 2007. European Conference on
Conference_Location :
Munich
Print_ISBN :
978-1-4244-0931-0
Electronic_ISBN :
978-1-4244-0931-0
DOI :
10.1109/CLEOE-IQEC.2007.4387010
