标题：Theoretical and experimental study on passive mode-locking composite Nd:GdVO4/Nd:GdVO4/Nd:GdVO4lasers
作者：Wang, X.M. ;Li, G.Q. ;Zhao, S.Z. ;Li, S.X. ;Zhang, L. ;Guo, Y.J.
作者机构：[Wang, X.M. ;Li, G.Q. ;Zhao, S.Z. ;Li, S.X. ;Zhang, L. ;Guo, Y.J. ] School of Information Science and Engineering, Shandong Provincial Key Laboratory 更多
摘要：Stable passive mode-locking multi-segment composite Nd:GdVO4lasers with a semiconductor saturable absorber mirror were demonstrated for the first time. For the composite crystals, the output power increased linearly with the increase of the incident pump power, showing excellent thermo-mechanical performances. While for the conventional crystal, power saturation was observed when the incident pump power exceeded 8.79 W. The maximum average output power of 1.465 W was achieved by Nd(0.1%):GdVO4/Nd(0.5%):GdVO4/Nd(1%):GdVO4composite crystal at an incident pump power of 9.28 W. The largest pulse energy of 14.90 nJ and the highest peak power of 0.53 kW with a pulse duration of 28.0 ps were also obtained by using the same composite crystal, revealing that the multi-segment composite crystal with a proper combination of Nd3+-doped concentrations could obtain the optimal laser performance.
© 2016 Elsevier B.V.