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Proceedings Paper

High-performance interband cascade lasers emitting between 3.3 and 3.5 microns
Author(s): J. D. Bruno; R. P. Leavitt; J. L. Bradshaw; K. M. Lascola; J. T. Pham; F. J. Towner
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Paper Abstract

Semiconductor laser performance in the 3 to 4 micron wavelength region has lagged behind lasers at longer and shorter wavelengths. However, recent advances by the group at the Naval Research Laboratory (NRL) have markedly changed this situation, and in a recent collaboration with the NRL group, we demonstrated high performance interband cascade lasers at 3.8 microns. In this work, we present results extending this earlier work to shorter wavelengths. In particular, we designed four new interband cascade lasers at target wavelengths between 3.3 and 3.5 microns. Initial testing of broad area devices show threshold current densities of ~230 A/cm2 at 300K, almost a factor of two lower than the ~425 A/cm2 results obtained on the broad area devices at 3.8 microns. In this paper, we present performance data on these broad area lasers and also data on narrow ridge devices fabricated from the same material.

Paper Details

Date Published: 17 May 2012
PDF: 8 pages
Proc. SPIE 8374, Next-Generation Spectroscopic Technologies V, 83740L (17 May 2012); doi: 10.1117/12.919346
Show Author Affiliations
J. D. Bruno, Maxion Technologies, Inc. (United States)
R. P. Leavitt, Maxion Technologies, Inc. (United States)
J. L. Bradshaw, Maxion Technologies, Inc. (United States)
K. M. Lascola, Maxion Technologies, Inc. (United States)
J. T. Pham, Maxion Technologies, Inc. (United States)
F. J. Towner, Maxion Technologies, Inc. (United States)

Published in SPIE Proceedings Vol. 8374:
Next-Generation Spectroscopic Technologies V
Mark A. Druy; Richard A. Crocombe, Editor(s)

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