UV-violet optical transitions and excitation schemes in Ho~(3+):ZBLAN fibers

摘要

Proof-of-concept, rate-equation based model is present to asses feasibility of population inversion build-up for novel optical transitions in Ho~(3+) doped ZBLAN fibres. Measured, fundamental spectroscopic parameters, as well as fibre cross-section geometry are taken into account, yielding preliminary conditions of population inversion for optical transitions from ~3D_3 state under direct and up-conversion excitation.