Title :
Investigations of the Linewidth of Intersubband Quantum Cascade Lasers
Author :
Gensty, Tobias ; Von Staden, Jens ; Peil, Michael ; Elsasser, W. ; Giuliani, Guido ; Mann, Christian
Author_Institution :
Inst. of Appl. Phys., Darmstadt Univ. of Technol.
Abstract :
We present experimental and theoretical investigations of the linewidth of quantum cascade lasers. We find linewidths in the kilohertz range depending on the injection current due to a non-constant linewidth enhancement factor
Keywords :
distributed feedback lasers; laser beams; light interferometry; quantum cascade lasers; DFB-quantum cascade lasers; injection current; intersubband quantum cascade lasers; laser linewidth; nonconstant linewidth enhancement factor; self-mixing interferometry; Equations; Laser modes; Laser noise; Laser theory; Power generation; Power lasers; Quantum cascade lasers; Quantum mechanics; Semiconductor device noise; Semiconductor lasers;
Conference_Titel :
Semiconductor Laser Conference, 2006. Conference Digest. 2006 IEEE 20th International
Conference_Location :
Kohala Coast, HI
Print_ISBN :
0-7803-9560-3
DOI :
10.1109/ISLC.2006.1708088
