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Optical Engineering

Quantum cascade lasers: high-power emission and single-mode operation in the long-wave infrared (>6 µm)
Author(s): Mariano Troccoli; Xiaojun Wang; Jenyu Fan
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Paper Abstract

We present an overview of our recent results on the growth, fabrication, and characterization of high-power long-wave infrared quantum cascade lasers with multimode and single-mode waveguides. Powers of up to 1.2 W at wavelengths of = 6.1 µm are obtained with InGaAs/InAlAs buried heterostructure lasers grown lattice matched on InP substrates. For longer wavelengths, up to = 9 µm, powers of P = 800 mW are delivered from room-temperature-operated devices. Distributed-feedback waveguides have been fabricated with buried grating geometry, leading to single-mode emission of more than P = 150 mW output at = 7.74 µm when the device is operated at room temperature in continuous mode.

Paper Details

Date Published: 1 November 2010
PDF: 9 pages
Opt. Eng. 49(11) 111106 doi: 10.1117/1.3498778
Published in: Optical Engineering Volume 49, Issue 11
Show Author Affiliations
Mariano Troccoli, AdTech Optics, Inc. (United States)
Xiaojun Wang, AdTech Optics, Inc. (United States)
Jenyu Fan, AdTech Optics, Inc. (United States)


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