Fig. 1. Schematic of an off-axis end-pumped solid-state laser.

Fig. 2. Laser beam profiles with different mode distributions in the sixteen transverse displacements when the pump power is 0.25 W and the pump beam radius is 0.075 mm.

Fig. 3. Photon numbers of the mode HG₀₀ and HG₁₀ (a), and their percentages (b); photon numbers of the modes HG₁₀ and HG₂₀ (c), and their percentages (d) near the threshold.

Fig. 4. Dependence of the net gains on the pump power: (a) 0.08 mm; (b) 0.155 mm.

Fig. 5. Laser beam profiles with different mode distributions in the eight transverse displacements when the pump power is 0.5 W and the pump beam radius is 0.15 mm.

Fig. 6. Photon numbers of the modes HG₀₀ , HG₁₀ and HG₂₀ (a) and their percentages (b); photon numbers of the modes HG₁₀, HG₂₀ and HG₃₀ ((c), (e)) and their percentages ((d), (f)) near the threshold.

Fig. 7. Dependence of the net gains on the pump power: (a) 0.1 mm; (b) 0.2 mm.

Fig. 8. Dynamics of the photon numbers: (a) ω_p = 0.075 mm, Δx = 0.08 mm, P_a = 0.5 W; (b) ω_p = 0.075 mm, Δx = 0.08 mm, P_a = 5 W; (c) ω_p = 0.15 mm, Δx = 0.1 mm, P_a = 0.5 W; (d) ω_p = 0.15 mm, Δx = 0.1 mm, P_a = 5 W; (e) ω_p = 0.15 mm, Δx = 0.2 mm, P_a = 0.5 W; (f) ω_p = 0.15 mm, Δx = 0.2 mm, P_a = 5 W.

Fig. 9. Schematic of the experimental setup.

Fig. 10. Output spots with different off-axis displacements.

Fig. 11. The spot keeps unchanged with the variation of the laser power.

Fig. 12. (a) Dependence of the output power on the displacement; (b) the maximum powers of the modes.