Title :
Effect of absorber length on hybrid mode-locking of a novel semiconductor laser
Author :
Li, X. ; Williamson, C.A. ; Adams, M.J. ; Poustie, A. ; Lealman, I.F.
Author_Institution :
Dept. of Electron. Syst. Eng., Essex Univ., Colchester, UK
Abstract :
Mode-locked pulses from a novel laser structure are studied in order to investigate the effect of the length of the absorber section on pulse width. A travelling-wave model is used to predict an optimum absorber length of 100 μm for a total device length of 1 mm. Experimental results demonstrate the shortening of pulses for absorber lengths of 50 μm and 75 μm as compared to the case without an absorber, but mode-locked operation of lasers with longer absorber lengths is not achieved.
Keywords :
laser mode locking; optical pulse generation; optical saturable absorption; semiconductor lasers; 1 mm; 100 mum; 50 mum; 75 mum; absorber length; hybrid mode-locking; mode-locked pulse; optical pulse generation; saturable laser; semiconductor laser; travelling-wave model; Grounding; Laser mode locking; Laser modes; Optical pulse generation; Optical pulses; Radiative recombination; Reflectivity; Semiconductor lasers; Space vector pulse width modulation; Waveguide lasers;
Conference_Titel :
Transparent Optical Networks, 2005, Proceedings of 2005 7th International Conference
Print_ISBN :
0-7803-9236-1
DOI :
10.1109/ICTON.2005.1506111
