摘要

A diode-end-pumped continuous-wave single-longitudinal-mode intracavity frequency-doubling Nd:GdVO4-LBO (lithium triborate) red laser at 670 nm is reported. A ring cavity was designed to enable single-longitudinal-mode operation of the laser. By optimizing the mode-to-pump ratio taking account of the influence of the laser beam radius inside the frequency-doubling crystal LBO on the frequency-doubling efficiency for the special cavity, a maximum output power of 1.3 W for a continuous-wave single-longitudinal-mode red laser at 670 nm was obtained, and the measured power stability was better than +/- 1.2% in 2 h. The experimental results are in good agreement with the theoretical calculation.