High-efficiency 1040 and 1078 nm laser emission of a Yb:Y2O3 ceramic laser with 976 nm diode pumping.
We report a high-efficiency diode-end-pumped polycrystalline Yb:Y2O3 ceramic laser. Pumped by a 976 nm laser diode bar and with an absorbed pump power of 2.8 W, cw output power of 1.74 W at 1078 nm, and 0.73 W at 1040 nm were obtained. The slope efficiency was measured to be 82.4% for the 1078 nm laser emission and 57.1% for the 1040 nm laser emission.
Kong
J
J
School of Electrical and Electronic Engineering, Nanyang Technological University, Singapore 639798. J_kong@pmail.ntu.edu.sg
Tang
D Y
DY
Chan
C C
CC
Lu
J
J
Ueda
K
K
Yagi
H
H
Yanagitani
T
T