Substrate-emitting ring interband cascade lasers | Zendy

Martin Holzbauer | Zendy; Rolf Szedlak | Zendy; Hermann Detz | Zendy; Robert Weih | Zendy; Sven Höfling | Zendy; W. Schrenk | Zendy; Johannes Koeth | Zendy; G. Strasser | Zendy

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Substrate-emitting ring interband cascade lasers

Author(s) -

Martin Holzbauer,

Rolf Szedlak,

Hermann Detz,

Robert Weih,

Sven Höfling,

W. Schrenk,

Johannes Koeth,

G. Strasser

Publication year - 2017

Publication title -

applied physics letters

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.182

H-Index - 442

eISSN - 1077-3118

pISSN - 0003-6951

DOI - 10.1063/1.4989514

Subject(s) - cascade , laser , optoelectronics , materials science , polarization (electrochemistry) , wavelength , semiconductor laser theory , substrate (aquarium) , quantum well , grating , quantum dot laser , optics , physics , semiconductor , chemistry , oceanography , chromatography , geology

Interband cascade lasers (ICLs) [1, 2] combine two concepts for semiconductor lasers, in particular the long carrier lifetime of photodiodes together with the voltage-efficient cascading of the quantum cascade laser. The low threshold power makes them very attractive for mobile systems used for spectroscopy, process control or medical applications. To date no suitable overgrowth process exists for GaSb-based ICLs, which prohibits the usage of a top-grating etched into the cladding layer. Single-mode emission from a ridge facet has been achieved via sidewall gratings [3], patterning of germanium on the surface [4] or lateral metal gratings [6]. Light outcoupling towards the surface of the ICL has been demonstrated with vertical-cavity surface-emitting lasers [6].

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