RbTiOPO4cascaded Raman operation with multiple Raman frequency shifts derived by Q-switched Nd:YAlO3laser.
An intra-cavity RbTiOPO4(RTP) cascade Raman laser was demonstrated for efficient multi-order Stokes emission. An acousto-optic Q-switched Nd:YAlO3laser at 1.08 μm was used as the pump source and a 20-mm-long x-cut RTP crystal was used as the Raman medium to meet the X(Z,Z)X Raman configuration. Multi-order Stokes with multiple Raman shifts (~271, ~559 and ~687 cm-1) were achieved in the output. Under an incident pump power of 9.5 W, a total average output power of 580 mW with a pulse repetition frequency of 10 kHz was obtained. The optical conversion efficiency is 6.1%. The results show that the RTP crystal can enrich laser spectral lines and generate high order Stokes light.
College of Physics and Electronic Information Engineering, Wenzhou University, Wenzhou 325035, China.
Yanmin
Y
Duan
College of Physics and Electronic Information Engineering, Wenzhou University, Wenzhou 325035, China.
Haiyong
H
Zhu
College of Physics and Electronic Information Engineering, Wenzhou University, Wenzhou 325035, China.
Yaoju
Y
Zhang
Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, China.
Ge
G
Zhang
School of Physics and Electronic Engineering, Jiangsu Normal University, Xuzhou 221116, China.
Jian
J
Zhang
School of Physics and Electronic Engineering, Jiangsu Normal University, Xuzhou 221116, China.
Dingyuan
D
Tang
Institute of Crystallography, Russian Academy of Sciences, Moscow 119333, Russia.
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Kaminskii
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