High-efficiency midinfrared “W” laser with optical pumping injection cavity

High-efficiency midinfrared “W” laser with optical pumping injection cavity

We describe an optical pumping injection cavity (OPIC) edge-emitting laser which employs GaSb/AlAsSb distributed Bragg reflectors above and below the type-II “W” active region to form an etalon for the pump beam. A pulsed W–OPIC laser emitting at 3.1–3.4 μm displays an incident threshold pump intens...

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Veröffentlicht in:Applied physics letters 1999-11, Vol.75 (19), p.2876-2878
Hauptverfasser: Felix, C. L., Bewley, W. W., Vurgaftman, I., Olafsen, L. J., Stokes, D. W., Meyer, J. R., Yang, M. J.
Format: Artikel
Sprache:eng
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Zusammenfassung:We describe an optical pumping injection cavity (OPIC) edge-emitting laser which employs GaSb/AlAsSb distributed Bragg reflectors above and below the type-II “W” active region to form an etalon for the pump beam. A pulsed W–OPIC laser emitting at 3.1–3.4 μm displays an incident threshold pump intensity of only 8 kW/cm2 at 300 K, and incident power conversion efficiencies per facet of 9% at 77 K and 4% at 275 K.
ISSN:0003-6951
1077-3118
DOI:10.1063/1.125176