Abstract
We describe a procedure to optimize mid-infrared quantum cascade lasers with respect to the resonant second-order optical susceptibility, based on supersymmetric quantum mechanics. Realization of the optimized potential can be obtained by composition grading of ternary alloys, such as in InGaAs/AlInAs-based structures. The approach yields designs not only with strongly enhanced predicted nonlinear conversion efficiencies, but also with significantly improved modal gain compared with demonstrated devices.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 4043-4048 |
| Number of pages | 6 |
| Journal | Optics Express |
| Volume | 14 |
| Issue number | 9 |
| DOIs | |
| State | Published - 2006 |