Title :
Detuning characteristics of the linewidth enhancement factor of a mid-infrared quantum cascade laser
Author :
Kumazaki, N. ; Takagi, Y. ; Ishihara, M. ; Kasahara, K. ; Sugiyama, A. ; Akikusa, N. ; Edamura, T.
Author_Institution :
Dept. of Photonics, Ritsumeikan Univ., Shiga
Abstract :
The linewidth enhancement factor of a 5.2-mum distributed-feedback quantum cascade laser above the threshold current caused by detuning from the gain peak was investigated. We clearly observed different values for the linewidth enhancement factor.
Keywords :
quantum cascade lasers; spectral line breadth; detuning characteristic; linewidth enhancement factor; midinfrared quantum cascade laser; wavelength 5.2 mum; Effective mass; Electronic mail; Laboratories; Light sources; Mirrors; Optical feedback; Optical scattering; Photonics; Quantum cascade lasers; Threshold current; 120.3180; 140.3070; 140.5965;
Conference_Titel :
Lasers and Electro-Optics, 2008 and 2008 Conference on Quantum Electronics and Laser Science. CLEO/QELS 2008. Conference on
Conference_Location :
San Jose, CA
Print_ISBN :
978-1-55752-859-9
