Development of a 2 μm Solid-State Laser for Lidar in the Past Decade

The 2 μm wavelength belongs to the eye-safe band and has a wide range of applications in fields lidar, biomedicine, materials processing. With rapid development military, wind power, sensing, other industries, new requirements for solid-state laser light sources have emerged, especially field lidar. This paper focuses on research progress lasers lidar over past decade. technology performance pulsed single longitudinal mode lasers, seed high power are, respectively, summarized analyzed. also introduces properties gain media commonly used band, construction method bonded crystals, fabrication saturable absorbers. Finally, future prospects are presented.