Faculté des sciences

Continuous wave operation of quantum cascade lasers

Beck, Mattias ; Hofstetter, Daniel ; Aellen, Thierry ; Blaser, Stéphane ; Faist, Jérôme ; Oesterle, Ursula ; Gini Emilio

In: Journal of Crystal Growth, 2003, vol. 251, no. 1-4, p. 697-700

Continuous wave (CW) operation of quantum cascade lasers is reported up to temperatures of 312 K. The devices were fabricated as buried heterostructure lasers and episide-down mounted for improved heat dissipation. Fabry–Perot lasers emitted 17 mW of continuous optical power at 292 K and still 3 mW at 311 K at λ=9.12 μm. Distributed feedback quantum cascade lasers showed CW single-mode... Plus

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    Summary
    Continuous wave (CW) operation of quantum cascade lasers is reported up to temperatures of 312 K. The devices were fabricated as buried heterostructure lasers and episide-down mounted for improved heat dissipation. Fabry–Perot lasers emitted 17 mW of continuous optical power at 292 K and still 3 mW at 311 K at λ=9.12 μm. Distributed feedback quantum cascade lasers showed CW single-mode operation up to 260 K at λ=9.0 μm with a side mode suppression rate better than 30 dB.