I. I. Zasavitskii, D. A. Pashkeev, A. A. Marmalyuk, Yu. L. Ryaboshtan, G. T. Mikaelyan, “An 8-μm quantum cascade laserproduced by the metalorganic vapour phase epitaxy method”, Kvantovaya Elektronika, 2010, Volume 40, Number 2,Pages <nobr>95

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Letters

An 8-μm quantum cascade laserproduced by the metalorganic vapour phase epitaxy method

I. I. Zasavitskii^a, D. A. Pashkeev^a, A. A. Marmalyuk^b, Yu. L. Ryaboshtan^b, G. T. Mikaelyan^c

^a P. N. Lebedev Physical Institute, Russian Academy of Sciences, Moscow
^b Polyus Research and Development Institute named after M. F. Stel'makh, Moscow
^c Inject Ltd., Saratov

Abstract: An 8-μm quantum cascade laser is fabricated by the metalorganic vapour phase epitaxy method. A scheme of vertical transitions in a structure consisting of three quantum wells is used. The laser operates in a pulsed regime at temperatures up to 250 K. The threshold current density was about 3 kA cm^-2 and increased up to 6 kA cm^-2 at 250 K. The 1-μs pulse power in the multimode regime was 45 mW at 77 K.

PACS: 42.55.Px, 78.67.De

Received: 24.01.2010