Abstract
We study crystalline fluoride microresonators for mid-infrared (mid-IR) applications. Whispering gallery mode resonators were fabricated with , , and crystals. The quality factors were measured at wavelengths of 1.56 and 4.58 μm. The impacts of post-fabrication processing, impurities, and surface water are highlighted. The mid-IR optical losses due to multiphoton absorption are measured. It is found that resonators have a room temperature -factor of at a wavelength of 4.58 μm, limited by multiphoton absorption.
© 2016 Optical Society of America
Full Article | PDF ArticleMore Like This
Anatoliy A. Savchenkov, Vladimir S. Ilchenko, Fabio Di Teodoro, Paul M. Belden, William T. Lotshaw, Andrey B. Matsko, and Lute Maleki
Opt. Lett. 40(15) 3468-3471 (2015)
Brandyn Way, Ravinder K. Jain, and Mani Hossein-Zadeh
Opt. Lett. 37(21) 4389-4391 (2012)
Tatiana S. Tebeneva, Artem E. Shitikov, Oleg V. Benderov, Valery E. Lobanov, Igor A. Bilenko, and Alexander V. Rodin
Opt. Lett. 47(24) 6325-6328 (2022)