Fig. 1. Experimental setup of CW dual-wavelength Nd:YVO4 laser.

Fig. 2. Output power of 1064 nm laser as a function of the incident pump power.

Fig. 3. Output spectrum of the Nd:YVO4 laser with the pump light polarized parallel to the crystal’s c-axis (left) and b-axis (right).

Fig. 4. Total output powers of the dual-wavelength laser at 1064 and 1066 nm as a function of the incident pump power.

Fig. 5. Output spectrum of the dual-wavelength Nd:YVO4 laser at the incident pump power of 2.85 W.

Fig. 6. Output power of the dual-wavelength Nd:YVO4 laser as a function of the incident pump power for wavelengths of 1064 and 1066 nm.

Fig. 7. Transitions within Nd:YVO4 crystal (left) between different energy levels, (right) from energy level F3/24 to I11/24 with Stark splitting resulting in 1064 and 1066 nm emissions.

Fig. 8. Effective stimulated emission cross section from F3/24 to I11/24 of Nd:YVO4^[22].

Fig. 9. Relationship between the polarization direction of the pump light E and the Nd:YVO4 crystal axis.