Continuous two-wave lasing in microchip Nd : YAG lasers

Simultaneous two-wave lasing was obtained in microchip end-pumped Nd : YAG lasers at the wavelengths of 1061.5 and 1064.17 nm at room temperature. Laser wave intensities were studied as functions of crystal temperature and pump power. The ranges of parameters were determined in which the two-wave lasing occurs and the reasons for such lasing were established. A model is suggested, which adequately describes the experimental results obtained.