Passively Q-switched 1.34 μm Nd:YxGd 1-x VO 4 laser with Co2+:LaMgAl 11 O 19 saturable absorber
2006; Optica Publishing Group; Volume: 14; Issue: 17 Linguagem: Inglês
10.1364/oe.14.007730
ISSN1094-4087
AutoresPeng Li, Yufei Li, Yuming Sun, Xueyuan Hou, Huaijin Zhang, Jing Wang,
Tópico(s)Advanced Fiber Laser Technologies
ResumoThe 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.
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