Microcavity-Stabilized Quantum Cascade Laser
Mario Siciliani de Cumis, Simone Borri, Giacomo Insero, Iacopo Galli, Anatoliy Savchenkov, Danny Eliyahu, Vladimir Ilchenko, Naota Akikusa, Andrey Matsko, Lute Maleki and Paolo De Natale
Article first published online: 24 NOV 2015 | DOI: 10.1002/lpor.201500214
Narrow linewidth lasers are key elements in optical metrology and spectroscopy. While stabilization of visible-to-near-IR lasers benefits of a variety of ultrastable references, its complexity increases tremendously moving to longer wavelenghts. In this paper, mid-IR quantum cascade laser stabilization to high-Q crystalline microresonators is reported, a promising method for mid-infrared metrology and on-chip infrared spectrometers.