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Proceedings Paper

Correlation of mid-infrared quantum-cascade laser performance with laser design parameters
Author(s): R. P. Leavitt; J. L. Bradshaw; K. M. Lascola; F. J. Towner; J. T. Pham; J. D. Bruno; C. F. Gmachl; P. Q. Liu
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Paper Abstract

Several different quantum-cascade (QC) laser designs spanning the wavelength range between ~3.8 and ~4.8 microns were grown, and devices were fabricated and tested. The active regions of these designs consist of strained layers of (In,Ga)As and (In,Al)As. For several of these designs, we varied design parameters including injector doping, sectioncoupling strength, and the number of QC laser periods. Lasers were tested near room temperature under both quasi-cw and low-duty-cycle conditions. Device performance is compared with theoretical expectations, and conclusions are reached on the relative merit of various design modifications.

Paper Details

Date Published: 23 May 2012
PDF: 12 pages
Proc. SPIE 8381, Laser Technology for Defense and Security VIII, 83810D (23 May 2012); doi: 10.1117/12.918632
Show Author Affiliations
R. P. Leavitt, Maxion Technologies, Inc. (United States)
J. L. Bradshaw, Maxion Technologies, Inc. (United States)
K. M. Lascola, Maxion Technologies, Inc. (United States)
F. J. Towner, Maxion Technologies, Inc. (United States)
J. T. Pham, Maxion Technologies, Inc. (United States)
J. D. Bruno, Maxion Technologies, Inc. (United States)
C. F. Gmachl, Princeton Univ. (United States)
P. Q. Liu, Princeton Univ. (United States)

Published in SPIE Proceedings Vol. 8381:
Laser Technology for Defense and Security VIII
Mark Dubinskii; Stephen G. Post, Editor(s)

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