Fig. 1. Schematic diagram of the LD-pumped CW SLM tunable dual-wavelength 1.08 µm and 0.54 µm laser. HWP, half-wave-plate; GC, galvanometer scanner; SC, servo controller; PM, power meter; PD, photodetector; WLM, wavelength meter; FWG, function waveform generator; PZT, piezoelectric transducer.

Fig. 2. Radius of the beam waist in the position of the Nd:CYA crystal versus the thermal focal length.

Fig. 3. Output power of 1.08 µm and 0.54 µm lasers as a function of the incident pump power.

Fig. 4. Measured power stability of the 1.08 µm laser in 4 h.

Fig. 5. Beam quality of the 1.08 µm laser.

Fig. 6. Monitored longitudinal-mode structure of the 1.08 µm laser.

Fig. 7. The Maximum tuning range of the 1.08 µm laser by rotating the incident angle of IE.

Fig. 8. Experimental results of the continuous frequency tuning. (a) Continuous frequency tuning of the 1.08 µm laser versus scanning time. (b) Corresponding power variation of the 1.08 µm laser in the process of continuous frequency tuning.