Infrared

Sub-kHz lasing of a CaF$_2$ whispering gallery mode resonator stabilized fiber ring laser

We utilize a high quality calcium fluoride whispering-gallery-mode resonator to passively stabilize a simple erbium doped fiber ring …

Michele C. Collodo, Florian Sedlmeir, Benjamin Sprenger, Sergiy Svitlov, L. J. Wang, Harald G. L. Schwefel