Resonantly enhanced nonhinearities in rare earth doped fibres and waveguides

Rare-Earth-Doped Waveguide Amplifiers and Lasers

Giant optical gain in a rare-earth-ion-doped waveguide

Giant Enhancement of Luminescence Down-Shifting by a Doubly Resonant Rare-Earth-Doped Photonic Metastructure

Resonance modes in rare earth doped microcrystals

Spectral properties of rare-earth-ion doped whispering gallery mode resonators

On the shifting of optical transition frequencies in rare-earth doped insulators by resonant optical excitation