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.

publication date

  • January 1, 2010 11:11 AM