Wu, Yuqiang; Ward, Jonathan M.; Nic Chormaic, Síle
(American Institute of Physics, 2010-02)
Upconversion lasing and fluorescence from active microspheres fabricated from a novel fluorozirconate, Er3+ doped glass, ZBNA (ZrF4-BaF2-NaF-AlF3), when pumped at 978 nm via a tapered optical fiber is demonstrated. An ...