Unveiling quantum-limited operation of interband cascade lasers

Year: 2020

Authors: Borri S., Siciliani de Cumis M., Viciani S., D’Amato F., De Natale P.

Autors Affiliation: CNR, INO, Largo E Fermi 6, I-50125 Florence, Italy; LENS, Via N Carrara 1, I-50019 Sesto Fiorentino, FI, Italy; Ist Nazl Fis Nucl, Sez Firenze, I-50019 Sesto Fiorentino, FI, Italy; ASI, Ctr Geodesia Spaziale, I-75100 Localita Terlecchia, Matera, Italy.

Abstract: A comprehensive experimental analysis of the frequency fluctuations of a mid-infrared interband cascade laser, down to the quantum-limited operation, is reported. These lasers differ from any other class of semiconductor lasers in their structure and internal carrier generation and transport processes. Although already commercially available, a full evaluation of their potential has not been possible, until now, mainly because their internal dynamics are not yet understood well enough. The measured intrinsic linewidth, down to 10 kHz, ranks them in between quantum cascade and bipolar semiconductor lasers. Understanding the noise features is especially important for demanding applications and is a necessary step for a deeper knowledge of the physical behavior for this class of lasers, in view of the development of novel designs for improved performance.

Journal/Review: APL PHOTONICS

Volume: 5 (3)      Pages from: 36101-1  to: 36101-6

More Information: This work was partially funded by INFN under the SUPREMO project and by European Union’s Horizon 2020 Research and Innovation Programme under the Laserlab-Europe project (Grant No. 654148) and under the Extreme Light Infrastructure (ELI) European project. The authors acknowledge Professor M. Yamanishi for useful discussions.
KeyWords: Intrinsic Linewidth; Frequency-noise; Stabilization; Band
DOI: 10.1063/1.5139483

ImpactFactor: 5.672
Citations: 18
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