Title :
Improvement of the direct modulation behavior of semiconductor lasers by using a holding beam
Author :
Morthier, G. ; Moeyersoon, B.
Author_Institution :
Dept. of Inf. Technol., Ghent Univ. IMEC, Gent, Belgium
fDate :
7/1/2004 12:00:00 AM
Abstract :
We show theoretically that the direct modulation properties of semiconductor lasers can be significantly improved by the injection of a so-called holding beam-a continuous-wave beam at the transparency wavelength of the gain medium. Both the small-signal and the large-signal behavior are investigated.
Keywords :
electro-optical modulation; laser beams; optical pulse shaping; semiconductor lasers; continuous wave beam; direct modulation behavior; holding beam; laser modulation; optical pulse shaping; semiconductor lasers; transparency wavelength; Charge carrier lifetime; Chirp modulation; Damping; Laser beams; Laser theory; Optical modulation; Pulse shaping methods; Resonance; Resonant frequency; Semiconductor lasers;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2004.829534
