Frequency-tunable YAlO3:Nd3+ laser

A YAlO₃:Nd³⁺crystal laser with a prism dispersive resonator was constructed. It emitted frequency-tunable radiation corresponding to the ⁴F_3/2 → ⁴I_11/2(λ_l = 1.0796, 1.0729, and 1.0644 μ) and ⁴F_3/2 → ⁴I_13/2 (λ_l = 1.3413 μ) transitions. When the Q factor was modulated by an electrooptic switch made of an LiNbO₃ crystal and the lowest transverse mode TEM₀₀ was selected, the radiation power at the wavelengths 1.0796, 1.0644, and 1.3413μ was ~7, 3.5, and 0.9 MW for pulse durations ~14, 25, and 80 nsec, respectively. The values of the gain were determined for a YAlO₃:Nd³⁺ crystal in the case of linear lasing resulting in the emission of the 1.0796, 1.0644, and 1.3413 μ lines.