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Electro‐Optical Characterization of CdSe Quantum Dot Laser Diodes
Author(s) -
Klude M.,
Passow T.,
Heinke H.,
Hommel D.
Publication year - 2002
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/1521-3951(200201)229:2<1029::aid-pssb1029>3.0.co;2-e
Subject(s) - electroluminescence , optoelectronics , quantum dot , diode , materials science , lasing threshold , laser , quantum dot laser , wavelength , laser diode , gain switching , semiconductor laser theory , optics , physics , nanotechnology , layer (electronics)
We report the electroluminescence characteristics at room‐temperature of CdSe quantum dot laser diodes. In comparison with quantum well laser diodes emitting in the same wavelength region a different dynamical behaviour under pulsed operation is found. Under short pulsed (0.1 μs) current injection a blue shift of the emission and an intensity increase are found with increasing driving current. Electrically pumped lasing is realized for 50 ns pulse width.