Passively Q-switched 1.34 mum Nd:YxGd(1-x)VO(4) laser with Co2+:LaMgAl(11)O(19) saturable absorber.
The static and dynamic 1.34 mum laser output performance of the Nd:Y(x)Gd(1-x)VO(4) mixed crystal pumped by flash-lamp is investigated with different transmissions of output couplers (T=15%, 30% and 40%) in a plano-concave laser cavity. With the output coupler transmission of T=30%, the static output energy of 62 mJ is obtained when the pump energy is 24.2 J, and the corresponding electric-optical conversion efficiency is 0.26%. By using a new saturable absorber: Co(2+):LaMgAl(11)O(19) (Co:LMA), the passive Q-switching at 1.34 mum is realized when the second threshold condition of passive Q-switching is satisfied. With the cavity length of 245 mm and pump energy of 24.2 J, the single-pulse output energy, pulse width and peak power are obtained to be 3.5 mJ, 45 ns and 77.8 kW, respectively.
Li
Peng
P
Li
Yufei
Y
Sun
Yuming
Y
Hou
Xueyuan
X
Zhang
Huaijin
H
Wang
Jiyang
J