Gain competition in dual wavelength quantum cascade lasers. Academic Article

abstract

• We investigated dual wavelength mid-infrared quantum cascade lasers based on heterogeneous cascades. We found that due to gain competition laser action tends to start 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. We developed a rate equation model to quantitatively describe mode interactions due to mutual gain depletion.

authors

• Belyanin, Alexey

published proceedings

• Opt Express

author list (cited authors)

• Geiser, M., Pflgl, C., Belyanin, A., Wang, Q. J., Yu, N., Edamura, T., ... Capasso, F.

citation count

• 27

complete list of authors

• Geiser, Markus||Pflügl, Christian||Belyanin, Alexey||Wang, Qi Jie||Yu, Nanfang||Edamura, Tadanaka||Yamanishi, Masamichi||Kan, Hirofumi||Fischer, Milan||Wittmann, Andreas||Faist, Jérôme||Capasso, Federico

publication date

• May 2010

publisher

• Optica Publishing Group  Publisher

keywords

• Computer Simulation
• Computer-Aided Design
• Equipment Design
• Equipment Failure Analysis
• Lasers
• Light
• Models, Theoretical
• Quantum Theory
• Scattering, Radiation

Digital Object Identifier (DOI)

• 10.1364/OE.18.009900

start page

• 9900

end page

• 9908

volume

• 18

issue

• 10

URL

• http%3A%2F%2Fdx.doi.org%2F10.1364%2Foe.18.009900