Quantum cascade lasers: high-power emission and single-mode operation in the long-wave infrared (>6 µm)

Mariano Troccoli; Xiaojun Wang; Jenyu Fan

doi:10.1117/1.3498778

1 November 2010 Quantum cascade lasers: high-power emission and single-mode operation in the long-wave infrared (>6 µm)

Mariano Troccoli; Xiaojun Wang; Jenyu Fan

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Optical Engineering, 49(11), 111106 (2010). https://doi.org/10.1117/1.3498778

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.

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Mariano Troccoli, Mariano Troccoli, Xiaojun Wang, Xiaojun Wang, Jenyu Fan, Jenyu Fan, } "Quantum cascade lasers: high-power emission and single-mode operation in the long-wave infrared (>6 µm)," Optical Engineering 49(11), 111106 (1 November 2010). https://doi.org/10.1117/1.3498778 . Submission:

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