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Proceedings Paper

Al0.45Ga0.55As/GaAs-based single-mode distributed-feedback quantum-cascade lasers with surface gratings
Author(s): Anna Szerling; Renata Kruszka; Kamil Kosiel; Marek Wzorek; Krystyna Gołaszewska; Artur Trajnerowicz; Piotr Karbownik; Maciej Kuc; Tomasz Czyszanowski; Michał Walczakowski; Norbert Palka
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Paper Abstract

Conditions of fabrication of first order distributed-feedback surface gratings designed for single-mode Al0.45Ga0.55As/GaAs quantum cascades lasers with the emission wavelength of about 10μm are presented. The 1 μm-deep rectangular-shaped gratings with the period of about 1.55 μm and duty cycle in the range of 65-71% made by the standard photolithography are demonstrated. The wavenumber difference of about 7 cm-1 at 77 K is observed for the radiation emitted by lasers fabricated from the same epitaxial structure with ridge widths in the range of 15-25 μm. Moreover, the emission wavelength of the lasers could be tuned with temperature at a rate of 1 nm/K in the temperature range of 77-120 K. The full width at half maximum of the emitted spectra is ~ 0.4 cm-1.

Paper Details

Date Published: 20 February 2017
PDF: 11 pages
Proc. SPIE 10123, Novel In-Plane Semiconductor Lasers XVI, 101231M (20 February 2017); doi: 10.1117/12.2252791
Show Author Affiliations
Anna Szerling, Institute of Electron Technology (Poland)
Renata Kruszka, Institute of Electron Technology (Poland)
Kamil Kosiel, Institute of Electron Technology (Poland)
Marek Wzorek, Institute of Electron Technology (Poland)
Krystyna Gołaszewska, Institute of Electron Technology (Poland)
Artur Trajnerowicz, Institute of Electron Technology (Poland)
Piotr Karbownik, Institute of Electron Technology (Poland)
Maciej Kuc, Lodz Univ. of Technology (Poland)
Tomasz Czyszanowski, Lodz Univ. of Technology (Poland)
Michał Walczakowski, Military Univ. of Technology (Poland)
Norbert Palka, Military Univ. of Technology (Poland)

Published in SPIE Proceedings Vol. 10123:
Novel In-Plane Semiconductor Lasers XVI
Alexey A. Belyanin; Peter M. Smowton, Editor(s)

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