Asymmetric Mach-Zehnder germanosilicate channel waveguide interferometers for quantum cryptography systems

Citation
G. Bonfrate et al., Asymmetric Mach-Zehnder germanosilicate channel waveguide interferometers for quantum cryptography systems, ELECTR LETT, 37(13), 2001, pp. 846-847
Citations number
5
Categorie Soggetti
Eletrical & Eletronics Engineeing
Journal title
ELECTRONICS LETTERS
ISSN journal
00135194 → ACNP
Volume
37
Issue
13
Year of publication
2001
Pages
846 - 847
Database
ISI
SICI code
0013-5194(20010621)37:13<846:AMGCWI>2.0.ZU;2-#
Abstract
Asymmetric Mach-Zehnder channel waveguide interferometers possessing a 1.1 ns delay in one of the arms were fabricated using dame hydrolysis deposit;i on of silica glass on silicon. Two modules were combined to form a single t ime-division interferometer for optical pulses. The composite interferomete r exhibited a high fringe contrast ratio of 1:200 making ii eminently suita ble for use in compact, low error-rate quantum cryptography systems.