Spectroscopy and Coherence of an Excited-State Transition in Tm${}^{3+}$:YAlO${}_3$ at Telecommunication Wavelength

Luozhen Li, Akshay Babu Karyath, Julien Bertrand +12

We characterize spectroscopic and coherence properties of the 1451.37 nm excited-state zero-phonon line (ZPL) between the ${}^3{F}_4$ and the ${}^3{H}_4$ manifolds of a thulium-dop…