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Proceedings Paper

Calculation of beam divergence of a quantum cascade laser by effective index method
Author(s): Michal Szymański; Kazimierz Regiński; Bohdan Mroziewicz; Emilia Pruszyńska-Karbownik; Kamil Kosiel; Piotr Karbownik
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Paper Abstract

Quantum cascade lasers (QCL’s) have proven their usefulness as light sources in many applications, like remote gas sensing, molecular spectroscopy or free-space communication. In most cases the high-quality low-divergence beam is desired. This work presents the theoretical analysis of QCL’s beam divergence. The electromagnetic field in the resonator is calculated according to effective index method. Theoretical results are compared with measurements.

Paper Details

Date Published: 22 January 2013
PDF: 6 pages
Proc. SPIE 8702, Laser Technology 2012: Progress in Lasers, 87020G (22 January 2013); doi: 10.1117/12.2012000
Show Author Affiliations
Michal Szymański, Institute of Electron Technology (Poland)
Kazimierz Regiński, Institute of Electron Technology (Poland)
Bohdan Mroziewicz, Institute of Electron Technology (Poland)
Emilia Pruszyńska-Karbownik, Institute of Electron Technology (Poland)
Kamil Kosiel, Institute of Electron Technology (Poland)
Piotr Karbownik, Institute of Electron Technology (Poland)


Published in SPIE Proceedings Vol. 8702:
Laser Technology 2012: Progress in Lasers
Wieslaw L Wolinski; Zdzislaw Jankiewicz; Ryszard S. Romaniuk, Editor(s)

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