Title :
Interface roughness broadening in intersubband lasers: Homogeneous or not?
Author :
Khurgin, J.B. ; Dikmelik, Y.
Author_Institution :
Johns Hopkins Univ., Baltimore, MD, USA
Abstract :
We demonstrate the inhomogeneous character of interface roughness broadening in intersubband transitions and analyze its impact on temperature dependence of the gain and absorption spectra in the quantum cascade laser.
Keywords :
interface roughness; quantum cascade lasers; spectral line broadening; absorption spectra; gain spectra; interface roughness broadening; intersubband transitions; quantum cascade laser; Absorption; Eigenvalues and eigenfunctions; Electrons; Laser transitions; Optical scattering; Performance analysis; Performance gain; Quantum cascade lasers; Semiconductor lasers; Temperature dependence; 140.5965 Semiconductor lasers, quantum cascade; 300.3700 Linewidth;
Conference_Titel :
Lasers and Electro-Optics, 2009 and 2009 Conference on Quantum electronics and Laser Science Conference. CLEO/QELS 2009. Conference on
Conference_Location :
Baltimore, MD
Print_ISBN :
978-1-55752-869-8
Electronic_ISBN :
978-1-55752-869-8
