A high-power $588\mathrm{nm}$ light produced by an intracavity frequency-doubling acousto-optic Q-switched self-frequency Raman laser is reported. A $20\text{-}\mathrm{mm}$-long $\mathrm{Y}\mathrm{V}{\mathrm{O}}_4∕\mathrm{Nd}:\mathrm{Y}\mathrm{V}{\mathrm{O}}_4$ composite crystal and a $15\text{-}\mathrm{mm}$-long $\mathrm{Li}{\mathrm{B}}_3{\mathrm{O}}_5$ (LBO) with noncritical phase-matching ($\theta =90°$, $\varphi =0°$) cut were adopted for efficient self-Raman laser operation and second-harmonic generation, respectively. By the optimizing the focus position of incident pump light and Q-switch repetition rate, yellow light with $5.7\mathrm{W}$ average power was generated under the pump power of $23.5\mathrm{W}$, corresponding to the overall diode-yellow conversion efficiency of 24.2% and slope efficiency of 32%. The pulse width is about $16\mathrm{ns}$, and the pulse energy is up to $95\mu \mathrm{J}$.

Optics InfoBase is the Optical Society's online library for flagship journals, partnered and copublished journals, and recent proceedings from OSA conferences.

Intra-cavity frequency doubling with 589 nm emission from a compact c-cut Nd:YVO₄ crystal self-Raman laser was investigated. A 15-cm-length LBO with non-critical phase-matching cut (θ = 90°, ϕ = 0°) was used for efficient second-harmonic generation. At a pump power of 16.2 W and a pulse repetition frequency of 40 kHz, output power up to 2.15 W was achieved with a pulse width of 16 ns and a conversion efficiency of 13.3% with respect to the diode pump power. The center wavelength was measured to be 589.17 nm with a Half-Maximum-Full-Width of 0.2 nm, which was well in accordance with the sodium D₂ resonance radiation.