“…Lasers have been widely used in military, medical, and scientific research fields due to their advantages of large energy density, high directionality, and coherence, which have greatly promoted societal development and scientific progress. − All-solid-state lasers have attracted increasing attention due to their compact structure, small size, and low maintenance cost. , Usually, the all-solid-state laser can only produce a single-wavelength laser because of the limitation of active ion energy level transitions in the laser medium. With the continuous expansion of laser applications, orthogonal polarized dual-wavelength lasers generated by a single laser are required in laser medical treatment, differential absorption lidar, fine laser spectroscopy, terahertz fields, etc. − Therefore, the all-solid-state orthogonal polarized dual-wavelength laser has become a hot topic of research in the fields of laser and laser crystal research.…”