Gain competition in multicolor Quantum Cascade Lasers Conference Paper uri icon

abstract

  • 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.

published proceedings

  • 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.

complete list of authors

  • Pfluegl, C||Geiser, M||Belyanin, A||Wang, QJ||Yu, N||Edamura, T||Yamanishi, M||Kan, H||Fischer, M||Wittmann, A||Faist, J||Capasso, Federico

publication date

  • December 2010