New fluoride glasses for laser applications
- 生命科学－已发表论文 
A new fluoride glass composition revealing a high stability, with a weak nucleation tendency, has been studied. The erbium spectroscopic properties have been investigated in these glasses in order to determine the parameters relevant to the 3 mum I-4(11/2) --> I-4(13/2) laser transition. A Judd-Ofelt analysis was performed to obtain radiative lifetimes and emission cross-sections. Lifetime. measurements have also been performed to optimize Er3+ concentration, taking into account the self-terminating behavior of the 3 mum laser transition. Also, Er:ZBLALiP microsphere 1550 nm lasers have been made with pumping by a half fiber taper at 1480 rim. (C) 2003 Elsevier B.V. All rights reserved.