We report a tunable single-longitudinal-mode laser based on a wedged Nd:YVO4 gain medium and a YVO4 wave-plate. By taking advantage of the natural birefringence of YVO4 and adopting different cutting methods, a wedged Nd:YVO4 crystal acts as an ideal polarizer by the alignment sensitivity of the optical resonator, and a YVO4 crystal is used as a wave-plate by adjusting the temperature. A theoretical analysis of the single- longitudinal-mode operation of such a laser configuration is presented. The wavelength can be continuously tuned by the temperature at approximately 0.025 nm/°C, and the temperature tuning ranges of single-longitudinal-mode operation at pump powers of 1 W and 2 W are from 12 °C to 30 °C and from 11 °C to 26 °C, respectively. The maximum single-longitudinal-mode output power with linear polarization is 762 mW at a pump power of 2.2 W with a slope efficiency of 40%.

中文翻译：

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具有 YVO4 波片的可调谐单纵模楔形 Nd:YVO4 激光器

我们报告了一种基于楔形 Nd:YVO4 增益介质和 YVO4 波片的可调谐单纵模激光器。利用YVO4的自然双折射，采用不同的切割方法，利用光谐振腔的配向灵敏度，楔形Nd:YVO4晶体作为理想的偏振片，通过调节温度，将YVO4晶体作为波片. 介绍了这种激光器配置的单纵模操作的理论分析。波长可通过温度连续调谐约 0.025 nm/°C，泵浦功率为 1 W 和 2 W 时单纵模工作的温度调谐范围为 12 °C 至 30 °C 和 11 °C 至 26 °C，分别。在泵浦功率为 2 时，线性极化的最大单纵模输出功率为 762 mW。