Title :
Tapered active-region quantum cascade lasers for virtual suppression of carrier-leakage currents
Author :
Kirch, J.D. ; Chang, C.-C. ; Shin, J.C. ; Mawst, L.J. ; Botez, D. ; Earles, T.
Author_Institution :
ECE Dept., Univ. of Wisconsin-Madison, Madison, WI, USA
Abstract :
A quantum-cascade laser design for effectively suppressing carrier leakage is demonstrated. The characteristic temperatures for threshold and slope efficiency, T0 and T1, reach values of 231 K and 797 K over the 20-60°C range.
Keywords :
leakage currents; optical design techniques; quantum cascade lasers; carrier leakage suppression; carrier-leakage currents; tapered active-region quantum cascade lasers; temperature 20 degC to 60 degC; temperature 231 K; temperature 797 K; virtual suppression; Doping; Heating; Quantum cascade lasers; Temperature distribution; Temperature measurement;
Conference_Titel :
Lasers and Electro-Optics (CLEO), 2012 Conference on
Conference_Location :
San Jose, CA
Print_ISBN :
978-1-4673-1839-6
