Share Email Print

Proceedings Paper

Simulation of gain in quantum cascade lasers
Author(s): Andreas Wacker; Rikard Nelander; Carsten Weber
Format Member Price Non-Member Price
PDF $17.00 $21.00

Paper Abstract

The gain profile of a quantum cascade laser is strongly influenced by the lifetime of the carriers in the upper and lower laser state. The quantitative description of gain within the concept of nonequilibrium Green's functions allows for a detailed understanding of various features affecting the gain spectrum: Compensation effects between scattering processes in the upper and lower laser level, reduction of gain due to coherences between nearly degenerate upper laser states, and dispersive gain without inversion.

Paper Details

Date Published: 3 February 2009
PDF: 10 pages
Proc. SPIE 7230, Novel In-Plane Semiconductor Lasers VIII, 72301A (3 February 2009); doi: 10.1117/12.808882
Show Author Affiliations
Andreas Wacker, Lund Univ. (Sweden)
Rikard Nelander, Lund Univ. (Sweden)
Carsten Weber, Lund Univ. (Sweden)

Published in SPIE Proceedings Vol. 7230:
Novel In-Plane Semiconductor Lasers VIII
Alexey A. Belyanin; Peter M. Smowton, Editor(s)

© SPIE. Terms of Use
Back to Top
Sign in to read the full article
Create a free SPIE account to get access to
premium articles and original research
Forgot your username?