Title :
All-optical frequency upconversion of radio over fibre signal with optical heterodyne detection
Author :
Song, H.-J. ; Lee, J.S. ; Song, J.-I.
Author_Institution :
Dept. of Inf. & Commun., Kwangju Inst. of Sci. & Technol., Gwangju, South Korea
fDate :
3/4/2004 12:00:00 AM
Abstract :
An all-optical frequency upconversion of radio over fibre signal with an optical heterodyne detection that is based on the cross-phase modulation effect in a semiconductor optical amplifier is proposed. Optical IF signal that contains 155.52 Mbit/s differential phase shift keying signal at 2.5 GHz along with 24 GHz optical LO signal are transmitted over a 20 km-long single mode fibre and then frequency upconverted to 26.5 GHz at a remote base station by using an SOA Mach-Zehnder interferometer. Error-free frequency upconversion is experimentally demonstrated.
Keywords :
Mach-Zehnder interferometers; differential phase shift keying; heterodyne detection; intermediate-frequency amplifiers; optical fibre communication; optical frequency conversion; semiconductor optical amplifiers; 155.52 Mbit/s; 2.5 GHz; 20 km; 24 GHz; 26.5 GHz; Mach-Zehnder interferometer; SOA Mach-Zehnder interferometer; cross-phase modulation effect; error-free frequency upconversion; optical IF signal; optical LO signal transmission; optical frequency upconversion; optical heterodyne detection; phase shift keying signal; radio over fibre signal; remote base station; semiconductor optical amplifier; single mode fibre;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:20040219
