Title :
Simultaneous beat-frequency locking of conventional and ultra-dense WDM channels using a modulated tunable-laser source
Author :
Kim, S.-Y. ; Lee, J.-S. ; Ra, K.-H.
Author_Institution :
Dept. of Electron. Eng., Kwangwoon Univ., Seoul, South Korea
fDate :
6/24/2004 12:00:00 AM
Abstract :
A beat-frequency-locking method to align conventional and ultra-dense wavelength-division-multiplexing (WDM) channels simultaneously is presented. This method finds and corrects the channel locations to within ±100 MHz, reading the beat frequencies between a sinusoidally-modulated tunable-laser source output and its adjacent optical channels. With this method, conventional WDM networks can be upgraded very easily by introducing ultra-dense WDM channels.
Keywords :
laser mode locking; laser tuning; optical fibre networks; telecommunication channels; wavelength division multiplexing; 100 MHz; beat-frequency locking; conventional WDM networks; modulated tunable-laser source; optical channels; ultra-dense WDM channels; ultra-dense wavelength-division-multiplexing channels;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:20040545
