Abstract
A planoconvex cavity is used to compensate the thermal lens effectively for a Q-switched Nd:GdVO4 laser. The good beam quality of the continuous-wave (CW) output laser was obtained and the performances of the Q-switched laser were improved remarkably. The pulse width reduced and the output ratio of the Q-switching to free running increased resulting from the good beam quality of the planoconvex cavity compared with those used on a flat-flat cavity.
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