8.1 W/670.7 nm and 5.1 W/669.6 nm cw red light outputs by intracavity frequency doubling of a Nd: YAP laser with LBO

摘要

In this paper, the continuous-wave intracavity second harmonic generation of a laser diode side-pumped Nd: YAP laser operating in the 1.3-μm region is demonstrated. A type-I critical phase-matched LiB_3O_5 (LBO) crystal was used as the frequency doubler. 8.1 W/670.7 nm and 5.1 W/669.6 nm continuous-wave red light outputs were achieved from the 1341.4-nm laser beam polarized along the c crystalline axis and the 1339.2-nm laser beam polarized along the a crystalline axis, respectively. The stability of the 670.7-nm red laser is better than 3% at the output power of 7 W in an hour.