Abstract
An AM mode-locked laser with a frequency doubler internal to the laser cavity is analyzed. Mathematical expressions are derived for laser pulsewidth, saturated gain, and second-harmonic output power. It is shown that the maximum second-harmonic power output available from the mode-locked laser is a factor of\sqrt{2}less than that available from an identical free-running laser. Numerical examples are given for an Nd:YAG laser with a Ba2NaNb5O15internal frequency doubler.