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Continuous-wave laser characteristics of a Nd3+:LaB3O6 cleavage microchip and the influence of thermal effects
Yujin Chen1, Xinghong Gong, Yanfu Lin
1National Engineering Research Center for Optoelectronic Crystalline Materials, Fujian Institute of Research on the Structure of Matter, the Chinese Academy of Sciences, Fujian, China.
Abstract:
With pumping by a Ti:sapphire laser, the cw laser characteristic of a 5.6 at. %, 0.5 mm thick Nd3+:LaB3O6 cleavage microchip in an end-pumped plano-plano resonator is researched. A slope efficiency of up to 49% and a maximum output power of 530 mW are obtained at an absorbed pump power of 1.16 W and an optimal output coupler transmission of 3.2%. Choppers with different duty cycles are used to change the thermal effects in the microchip, and the influences of thermal effects on the laser characteristics of the Nd3+:LaB3O6 cleavage microchip are investigated.
