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Proceedings Paper

Regrowth-free mid-infrared distributed feedback quantum cascade lasers with sub-watt power consumption
Author(s): Ryan M. Briggs; Clifford Frez; Mathieu Fradet; Siamak Forouhar; Romain Blanchard; Christian Pflügl
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Paper Abstract

We report on room-temperature, continuous-wave operation of single-mode quantum cascade lasers designed for minimal threshold power consumption in the 4 to 10 μm spectral range. Narrow-ridge distributed feedback lasers were developed with plasma-etched sidewall corrugations and infrared-transparent dielectric cladding, enabling fabrication without any epitaxial steps beyond the initial growth of the planar laser wafer. The devices exhibit single-mode emission with stable, mode-hop-free tuning and side-mode suppression greater than 25 dB. We demonstrate packaged single-mode devices with continuous-wave threshold power consumption near 1 W above room temperature.

Paper Details

Date Published: 10 March 2016
PDF: 7 pages
Proc. SPIE 9767, Novel In-Plane Semiconductor Lasers XV, 97671S (10 March 2016); doi: 10.1117/12.2213990
Show Author Affiliations
Ryan M. Briggs, Jet Propulsion Lab. (United States)
Clifford Frez, Jet Propulsion Lab. (United States)
Mathieu Fradet, Jet Propulsion Lab. (United States)
Siamak Forouhar, Jet Propulsion Lab. (United States)
Romain Blanchard, Pendar Technologies (United States)
Christian Pflügl, Pendar Technologies (United States)


Published in SPIE Proceedings Vol. 9767:
Novel In-Plane Semiconductor Lasers XV
Alexey A. Belyanin; Peter M. Smowton, Editor(s)

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