Title :
Colliding-pulse modelocked quantum dot lasers
Author :
Thompson, Mark G. ; Marinelli, C. ; Zhao, Xingang ; Sellin, R.L. ; Penty, Richard V. ; White, Ian H. ; Kaiander, I.N. ; Bimberg, Dieter ; Kang, D.-J. ; Blamire, M.G.
Author_Institution :
Dept. of Eng., Univ. of Cambridge, UK
fDate :
3/3/2005 12:00:00 AM
Abstract :
Colliding pulse modelocking is demonstrated for the first time in quantum dot lasers. Using 3.9 mm-long devices with a 245 /spl mu/m-long central absorber, 7 ps pulses at a repetition rate of 20 GHz is obtained. For Gaussian pulses a time-bandwidth product close to the Fourier transform limit is determined. These results confirm the potential of quantum dot lasers for high repetition rate harmonic modelocking.
Keywords :
laser mode locking; optical saturable absorption; quantum dot lasers; 3.9 mm; 7 ps; Fourier transform limit; Gaussian pulses; central absorber; colliding-pulse modelocked quantum dot lasers; high repetition rate harmonic modelocking; repetition rate; time-bandwidth product;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:20047868
