Asymmetric Mach-Zehnder germano-silicate channelwaveguide interferometersfor quantum cryptography systems
- 21 June 2001
- journal article
- Published by Institution of Engineering and Technology (IET) in Electronics Letters
- Vol. 37 (13) , 846-847
- https://doi.org/10.1049/el:20010508
Abstract
Asymmetric Mach-Zehnder channel waveguide interferometers possessing a 1.1 ns delay in one of the arms were fabricated using flame hydrolysis deposition of silica glass on silicon. Two modules were combined to form a single time-division interferometer for optical pulses. The composite interferometer exhibited a high fringe contrast ratio of 1:200 making it eminently suitable for use in compact, low error-rate quantum cryptography systems.Keywords
This publication has 1 reference indexed in Scilit:
- Experimental quantum cryptographyJournal of Cryptology, 1992