Title :
Terahertz difference frequency generation in quantum cascade lasers
Author :
Belkin, Mikhail A. ; Capasso, Federico ; Belyanin, Alexey ; Sivco, Deborah L.
Author_Institution :
Division of Engineering and Applied Sciences, Harvard University, Cambridge, MA 02138, USA
Abstract :
We demonstrate intra-cavity terahertz difference-frequency generation in quantum cascade lasers. A two-wavelength quantum cascade laser with monolithically integrated optical nonlinearity emitting at 7.6 and 8.7 ¿m was used to generate difference frequency at 62 ¿m.
Keywords :
Frequency conversion; Indium gallium arsenide; Integrated optics; Nonlinear optics; Optical harmonic generation; Optical pumping; Optical waveguides; Quantum cascade lasers; Stimulated emission; Temperature;
Conference_Titel :
Quantum Electronics and Laser Science Conference, 2007. QELS '07
Conference_Location :
Baltimore, MD, USA
Print_ISBN :
978-1-55752-834-6
DOI :
10.1109/QELS.2007.4431618
