Quantum parallel laser: a unipolar superlattice interminiband laser
- 1 May 1997
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Photonics Technology Letters
- Vol. 9 (5) , 593-595
- https://doi.org/10.1109/68.588133
Abstract
Designs are given for parallel (rather than cascade) intersubband lasing in superlattice structures of group IV and III-V materials. Structures with population inversion due to coupled wells have minibandwidths too narrow for coherent transport and the incoherent interperiod rates are too small for population of a significant number of periods. A single-well period with local population inversion gives operation in the coherent regime. An example is given for the III-V materials. Both SiGe-Si and Si-ZnS are discussed for intersubband lasing at 1-20 /spl mu/m.Keywords
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