Abstract
The temperature performance of type-II semiconductor lasers has been analyzed by comparing the temperature-concentration dependence for a charge-carrier subsystem at the threshold with steady-state temperature-concentration relationship implied by the carrier heating process. The low material gain characteristic of type-II heterostructures and the high resistance of the thermal link to the heat sink are primarily responsible for limiting the continuous-wave laser operation to low temperatures. We show also that the number of cascades for type-II interband cascade lasers can be optimized with respect to the highest achievable operating temperature.
| Original language | English |
|---|---|
| Pages (from-to) | 4310-4312 |
| Number of pages | 3 |
| Journal | Applied Physics Letters |
| Volume | 85 |
| Issue number | 19 |
| DOIs | |
| State | Published - Nov 8 2004 |
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