Photoluminescence property and laser performance in Yb-doped Sr1-xGdxF2+x single crystals

• DOI: 10.1364/ome.8.001747
• Publication Date: 2018-06-06T20:33:39Z
• Authors: Zhengting Zou; Yifeng He; Hao Yu; Siyuan Pang; Yongjing Wu; Jie Liu; Liangbi Su
• Keywords: Ytterbium; Laser diode; Crystal (programming language)

3 at.%Yb: Sr1-xGdxF2+x (x = 0,0.01,0.03,0.06,0.09) single crystals are grown by the temperature gradient technique (TGT), where Gd3+ ions were used as a lattice structural modifier to form disordered site. The Yb: maintain cubic structure Fm3m. Specifically, absorption cross section of Sr0.97Gd0.03F2.03 crystal was increased more than 10% compared with that at.%Yb:SrF2. emission σem in 1.21 × 10−20 cm2 at central wavelength 976 nm an enhancement 11% A direct continuous-wave diode pumped laser could generate output power 3.8 W 1052 optic-optic efficiency 46.5% using coupler transmission T 3%.