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Frequency noise characterization of interband cascade lasers
Author(s): S. Borri; M. Siciliani de Cumis; S. Viciani; N. Akikusa; F. D'Amato; P. De Natale
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Paper Abstract

Thanks to their compactness and low-power consumption, Interband Cascade Lasers (ICLs) are emerging sources for mid-infrared (MIR) molecular sensing below 6 µm. Understanding their noise features is of fundamental importance for applications like high-sensitivity and high-resolution spectroscopy. It could unveil details of their intrinsic physical behavior and, similarly to what happened for Quantum Cascade Lasers (QCLs), lead to the development of frequency and phase stabilization techniques for linewidth reduction. In this manuscript, we discuss the importance of full frequency noise characterization for ICLs, pointing out the main similarities and differences with respect to QCLs, and we show preliminary noise measurements. The frequency noise spectrum is analyzed and discussed, and the laser linewidth over different timescales calculated.

Paper Details

Date Published: 1 March 2019
PDF: 7 pages
Proc. SPIE 10939, Novel In-Plane Semiconductor Lasers XVIII, 109391B (1 March 2019); doi: 10.1117/12.2509494
Show Author Affiliations
S. Borri, CNR - Istituto Nazionale di Ottica (Italy)
INFN Sezione di Firenze (Italy)
M. Siciliani de Cumis, CNR - Istituto Nazionale di Ottica (Italy)
Agenzia Spaziale Italiana (Italy)
S. Viciani, CNR - Istituto Nazionale di Ottica (Italy)
N. Akikusa, Hamamatsu Photonics K.K. (Japan)
F. D'Amato, CNR - Istituto Nazionale di Ottica (Italy)
P. De Natale, CNR- Istituto Nazionale di Ottica (Italy)
INFN Sezione di Firenze (Italy)


Published in SPIE Proceedings Vol. 10939:
Novel In-Plane Semiconductor Lasers XVIII
Alexey A. Belyanin; Peter M. Smowton, Editor(s)

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