Title :
Terahertz time domain spectroscopy of phonon-depopulation based quantum cascade lasers
Author :
Dhillon, S.S. ; Jukam, N. ; Oustinov, D. ; Madeo, J. ; Colombelli, R. ; Dean, P. ; Salih, M. ; Khanna, S.P. ; Linfield, Edmund ; Davies, A.G. ; Tignon, J.
Author_Institution :
Lab. Pierre Aigrain, Univ. Paris 6, Paris, France
Abstract :
A 3.1THz phonon depopulation-based quantum-cascade-laser is investigated using terahertz time domain spectroscopy. A gain of 25cm−1 and absorption features due to the lower laser level being populated from a parasitic electronic channel are highlighted.
Keywords :
Lasers and electrooptics; Optical pulses; Optical waveguides; Phonons; Power lasers; Quantum cascade lasers; Semiconductor lasers; Spectroscopy; Temperature; Waveguide lasers;
Conference_Titel :
Lasers and Electro-Optics (CLEO) and Quantum Electronics and Laser Science Conference (QELS), 2010 Conference on
Conference_Location :
San Jose, CA, USA
Print_ISBN :
978-1-55752-890-2
Electronic_ISBN :
978-1-55752-890-2
