Type-II quantum-well “W” lasers emitting at λ=5.4–7.3 μm
1999; American Institute of Physics; Volume: 86; Issue: 9 Linguagem: Inglês
10.1063/1.371436
ISSN1520-8850
AutoresD. W. Stokes, L. J. Olafsen, W. W. Bewley, I. Vurgaftman, C.L. Felix, E. H. Aifer, J. R. Meyer, M. J. Yang,
Tópico(s)Semiconductor Lasers and Optical Devices
ResumoA series of optically pumped type-II quantum-well “W” lasers with wavelengths ranging from 5.4 to 7.3 μm operated at temperatures up to at least 220 K for pulsed operation. The peak output power at 80 K was 1.1 W/facet for a device emitting at λ=7.0 μm. Internal losses were characterized for the temperature range between 40 and 190 K. Auger coefficients determined from an analysis of the threshold pump intensities were found to be suppressed by up to an order of magnitude compared to type-I III–V semiconductors with the same energy gaps.
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