Narrow-linewidth Interband-cascade lasers for high-resolution spectroscopy

S. Borri; M. Siciliani de Cumis; G. Insero; S. Viciani; F. D'Amato; P. De Natale

doi:10.1117/12.2545833

24 February 2020 Narrow-linewidth Interband-cascade lasers for high-resolution spectroscopy

S. Borri, M. Siciliani de Cumis, G. Insero, S. Viciani, F. D'Amato, P. De Natale

Proceedings Volume 11301, Novel In-Plane Semiconductor Lasers XIX; 113011O (2020) https://doi.org/10.1117/12.2545833
Event: SPIE OPTO, 2020, San Francisco, California, United States

Abstract

Interband Cascade Lasers (ICLs) are gaining field in molecular sensing thanks to their compact sizes and low-power consumption. They emit in the 3-6 μm range, and are valid alternative to QCLs especially for on-field measurement. Their suitability for high-resolution spectroscopy and metrology critically depends on their frequency stability and linewidth.
Here we investigate this issues, reporting experimental studies of the frequency noise and intrinsic linewidth of an ICL at 4.6 μm. The main differences with respect to other semiconductor lasers are discussed, as well as quantum-limited operation achievable using low-noise current drivers and frequency locking to high-performance optical resonators.

Conference Presentation

Citation Download Citation

S. Borri, M. Siciliani de Cumis, G. Insero, S. Viciani, F. D'Amato, and P. De Natale "Narrow-linewidth Interband-cascade lasers for high-resolution spectroscopy", Proc. SPIE 11301, Novel In-Plane Semiconductor Lasers XIX, 113011O (24 February 2020); https://doi.org/10.1117/12.2545833

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