Title :
Gain switching of a terahertz quantum cascade laser for THz pulse amplification
Author :
Oustinov, D. ; Jukam, N. ; Rungsawang, R. ; Madeo, J. ; Barbieri, S. ; Manquest, C. ; Sirtori, C. ; Khanna, S.P. ; Linfield, E.H. ; Davies, A.G. ; Tignon, J. ; Dhillon, S.
Author_Institution :
Lab. Pierre Aigrain, UPMC, Paris, France
Abstract :
The population inversion of a terahertz quantum cascade laser is placed out of equilibrium using an integrated Auston switch. As a result, the dynamic gain of the laser is no longer clamped at threshold by the mirror losses, and large amplification of input terahertz probe pulses is observed.
Keywords :
high-speed optical techniques; quantum cascade lasers; terahertz wave generation; THz pulse amplification; dynamic gain; gain switching; input terahertz probe pulses; integrated Auston switch; mirror losses; population inversion; terahertz quantum cascade laser; Cavity resonators; Contacts; Laser modes; Probes; Quantum cascade lasers; Switches;
Conference_Titel :
Infrared Millimeter and Terahertz Waves (IRMMW-THz), 2010 35th International Conference on
Conference_Location :
Rome
Print_ISBN :
978-1-4244-6655-9
DOI :
10.1109/ICIMW.2010.5612810
