Above-room-temperature mid-infrared lasing from vertical-cavity surface-emitting PbTe quantum-well lasers
- 12 February 2001
- journal article
- conference paper
- Published by AIP Publishing in Applied Physics Letters
- Vol. 78 (7) , 862-864
- https://doi.org/10.1063/1.1347404
Abstract
Above-room-temperature operation of vertical-cavity surface-emitting lasers emitting in the mid-infrared is reported. The stimulated emission is generated in PbTe quantum wells embedded in two-wavelength microcavities by optically pumping with fs laser pulses. The spectrum of the laser modes is broadened and blue-shifted due to dynamic band filling. The intensity of the mid-infrared emission and the laser threshold depends on the energy of the microcavity resonance. At a wavelength of 3.1 μm, laser operation is obtained up to a temperature of 65 °C, limited by nonradiative recombination processes.Keywords
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