Continuous wave operation of quantum cascade lasers based on vertical transitions at λ=4.6 μm

Continuous wave operation of quantum cascade lasers based on vertical transitions at λ=4.6 μm

Continuous wave operation of a quantum cascade laser at λ=4.6 μm is reported above liquid nitrogen temperature. Optical powers of 15 mW at 50 K and 2 mW at 85 K are reported. The single mode spectrum is temperature tunable over 1.8 cm −1. A linewidth of 115 Mhz is measured with a Fabry–Perot on thos...

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Veröffentlicht in:Superlattices and microstructures 1996, Vol.19 (4), p.337-345
Hauptverfasser: Faist, Jérôme, Capasso, Federico, Sirtori, Carlo, Sivco, Deborah L., Hutchinson, Albert L., Chu, Sung-Nee G., Cho, Alfred Y.
Format: Artikel
Sprache:eng
Schlagworte:
Exact sciences and technology
Fundamental areas of phenomenology (including applications)
Lasers
Optics
Physics
Semiconductor lasers
laser diodes
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Zusammenfassung:Continuous wave operation of a quantum cascade laser at λ=4.6 μm is reported above liquid nitrogen temperature. Optical powers of 15 mW at 50 K and 2 mW at 85 K are reported. The single mode spectrum is temperature tunable over 1.8 cm −1. A linewidth of 115 Mhz is measured with a Fabry–Perot on those free running devices. Gain measurements show evidence for ultra low linewidth enhancement factor α
ISSN:0749-6036
1096-3677
DOI:10.1006/spmi.1996.0037