Open AccessDual function of Nd^3+ in Nd,Er:LuYSGG crystal for LD pumped ~30 μm mid-infrared laser
Author(s) -
Yan Wang,
Jianfu Li,
Zhaojie Zhu,
Zhenyu You,
Jinlong Xu
Publication year - 2015
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.23.018554
Subject(s) - materials science , crystal (programming language) , laser , neodymium , optics , infrared , doping , absorption (acoustics) , stimulated emission , analytical chemistry (journal) , optoelectronics , chemistry , physics , chromatography , computer science , composite material , programming language
Enhanced ~3.0 μm emission corresponding to Er3+:4I11/2→4I13/2 was achieved in Nd3+/Er3+ co-doped Lu0.15Y2.85Sc2Ga3O12 (abbr. as Nd,Er:LuYSGG) crystal under 808 nm pumping. As compared with Er:YSGG crystal, the absorption pump efficiency of Nd,Er:LuYSGG crystal is greatly improved and thus ~3.0 μm emission is enhanced by 2.2 times owing to the sensitization of Nd3+, at the same time, Nd3+ as deactivator quenches ~1.5 μm emission from Er3+:4I13/2 level and thus inhibit the self-termination effect successfully. The energy transfer efficiencies of Nd: 4F3/2→Er: 4I11/2 and Er: 4I13/2→Nd:4I15/2 are estimated to be 91.6% and nearly 100%, respectively. These results indicate that the introduction of Nd3+ is very helpful for achieving ~3.0 μm laser in Nd,Er:LuYSGG crystal.