Chinese Journal of Lasers, Volume. 34, Issue 3, 337(2007)
Novel Double Q-Switcher Structure for Thermal Induced Depolarization Compensation in All-Solid-State Laser
In this paper, a novel double Q-switcher structure is designed in order to compensate the thermal induced birefringence in the active medium of 1 kHz laser diode (LD) side-pumped electro-optic Q-switched Nd:YAG laser. The experiment result shows that pulse energy of the double Q-switch Nd:YAG laser is 56% higher than the same situation in single Q-switch uncompensated structure. When the laser output power is up to 450 mJ, pulse energy of 30 mJ is obtained, the extinction ratio of beam is better than 10:1, the pulse duration is about 14 ns, and the optical-to-optical conversion efficiency is 6.7%. At the same time, the novel cavity is modelled and numerically calculating is made by using rate equations, the results are accorded with the experiment.
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[in Chinese], [in Chinese], [in Chinese]. Novel Double Q-Switcher Structure for Thermal Induced Depolarization Compensation in All-Solid-State Laser[J]. Chinese Journal of Lasers, 2007, 34(3): 337