Surface-emitting distributed feedback quantum-cascade lasers

doi:10.1063/1.1313807

2000-10-02

DOI：10.1063/1.1313807

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We report on the realization of second-order distributed feedback quantum-cascade lasers at lambda=9.35 mu m, where the active region consists of GaAs, AlGaAs, and strained InGaAs grown on GaAs. A metal-stripe surface grating structure allows a high surface emission efficiency for the TM-polarized light. The emitted power via the surface is in the range of 100 mW and exceeds the emitted power from one facet. A double-lobed surface-emission far-field pattern is obtained for the lasing mode. The single-mode emission wavelength is continuously tunable by the heat sink temperature. (C) 2000 American Institute of Physics. [S0003-6951(00)00340-5].

Keyword:

MU-M

WAVE

期刊

Applied Physics Letters

IF:

3.6

论文数:

10.4W

被引数:

17.8W

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暂无机构信息

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