Spectroscopic properties in Er Er 3+/Yb 3+Co-doped fluorophosphate glass
郑涛, 秦杰明, 蒋大勇, 吕景文, 肖生春
中国物理B . 2012, (4): 43302 -043302 .  DOI: 10.1088/1674-1056/21/4/043302