Title :
Direct modulation of widely tunable twin-guide lasers
Author :
Laroy, Reinhard ; Todt, René ; Meyer, Ralf ; Amann, Markus-Christian ; Morthier, Geert ; Baets, Roel
Author_Institution :
Dept. of Inf. Technol., Ghent Univ., Gent
fDate :
6/1/2006 12:00:00 AM
Abstract :
The possibility to directly modulate widely tunable lasers up to several gigahertz is desirable in telecom applications. We discuss the dynamic properties of the recently proposed widely tunable twin-guide laser concept. It has promising prospects with a maximum theoretical bandwidth above 20 GHz and the 3-dB bandwidth at 250 mA indicates that an actual bandwidth of 12 GHz should be possible. The current lasers were not designed for high-speed modulation, so only 1-GHz modulation can be reached at the moment
Keywords :
laser tuning; optical communication equipment; optical modulation; semiconductor lasers; waveguide lasers; 12 GHz; 250 mA; bandwidth; direct modulation; laser tuning; twin-guide lasers; Bandwidth; Diode lasers; Distributed feedback devices; Laser theory; Laser tuning; Optical modulation; Optical noise; Optical sensors; Semiconductor lasers; Tunable circuits and devices; Modulation; semiconductor laser; tunable laser;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2006.876752
