Gain competition in multicolor Quantum Cascade Lasers
- View All
We investigated dual-color mid-infrared quantum cascade lasers. We found that due to gain competition mid-infrared modes tend to start lasing in higher order lateral modes. The mid-infrared mode with the lower threshold current reduces population inversion for the second laser with the higher threshold current due to stimulated emission. A theoretical model describing this effect was developed, which is important for future device optimization. 2009 Optical Society of America.
2010 CONFERENCE ON LASERS AND ELECTRO-OPTICS (CLEO) AND QUANTUM ELECTRONICS AND LASER SCIENCE CONFERENCE (QELS)
author list (cited authors)
Pfluegl, C., Geiser, M., Belyanin, A., Wang, Q. J., Yu, N., Edamura, T., ... Capasso, F.