海洋探测激光雷达和水下无线光通信应用对激光发射源的波长、重复频率和峰值功率等均提出了特殊的要求。具有高峰值功率的蓝绿波段纳秒脉冲激光，尤其是在大洋水中衰减系数更小的蓝光，在海洋主动遥感和信息高速传输中有着十分重要的应用。对国内外蓝光脉冲激光器技术的发展现状进行了综述，并从高重复频率、多波长和大能量、高峰值功率两种类型的应用需求出发，详细介绍了针对486.1 nm夫琅禾费暗线的蓝光脉冲激光器的最新研究工作。

The applications of ocean exploration lidars and underwater wireless laser communications put forward special requirements for the wavelength, repetition rate, and peak power of the laser source. The nanosecond pulsed blue-green laser with high peak power, especially blue laser with smaller attenuation coefficient in ocean water, is widely required for active oceanic remote sensing and high-speed information transmission. In this paper, the development status of blue pulsed lasers is reviewed, and the recent research on blue pulsed lasers emitting at the Fraunhofer line of 486.1 nm is introduced in detail from the perspective of two application scenarios, i.e., one with high repetition rate and multiple wavelengths and the other with high energy and high peak power.