Surface emitting multi-wavelength array of single frequency quantum cascade lasers

We present a surface emitting laser array design based on distributed Bragg reflectors together with a second order extractor, providing a deterministic mode selection mechanism. The technology is implemented as a buried heterostructure compatible with continuous-wave operation and low dissipation....

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Veröffentlicht in:Applied physics letters 2015-02, Vol.106 (7)
Hauptverfasser: Jouy, P., Bonzon, C., Wolf, J., Gini, E., Beck, M., Faist, J.
Format: Artikel
Sprache:eng
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Zusammenfassung:We present a surface emitting laser array design based on distributed Bragg reflectors together with a second order extractor, providing a deterministic mode selection mechanism. The technology is implemented as a buried heterostructure compatible with continuous-wave operation and low dissipation. A proof of principle featured 10 regularly spaced single mode devices with a coverage of 175 cm−1 in the 8–10 μm wavelength range and milliwatt output powers with a far-field pattern full-width half-maximum of 8.3° in the longitudinal direction.
ISSN:0003-6951
1077-3118
DOI:10.1063/1.4913203