Abstract
A theoretical investigation of the optical gain of electrically pumped intersubband lasers is presented. Using a prototype four-level near-infrared (1.55μm) triple quantum well structure, self-consistent numerical simulations of the rate equations, energy density equations, optical gain and spontaneous emisson spectra of triple quantum well structures have been implemented at temperatures of 100 K and 300 K. It is predicted that the threshold currents of such lasers are significantly smaller than those for mid-infrared quantum cascade lasers.
Original language | English (US) |
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Pages (from-to) | 1857-1870 |
Number of pages | 14 |
Journal | Journal of Modern Optics |
Volume | 47 |
Issue number | 11 |
DOIs | |
State | Published - Jan 1 2000 |
ASJC Scopus subject areas
- Atomic and Molecular Physics, and Optics