CEDAR: An Operational CW Solid-State Laser System for Temperature and Wind Measurements in the Mesopause

现有的钠激光雷达安装在科罗拉多州立大学，可以对中间层区域的温度剖面进行重要的地球物理测量。该发射机的一个重要组成部分是稳定的窄带连续波激光束，该激光束为高功率脉冲染料放大器提供种子。目前的装置由氩离子激光器和单模环形染料激光器组成，具有探测系统所需的多功能性，但空间、功率和维护要求过高。因此，沙漠研究所正在开发一种紧凑的固态连续波光源。PI将通过(1)将固态光源安装在带有外壳的小型光学面包板上，使机械和光学设置更加坚固耐用，从而将其修改为可操作的便携式单元；(2)开发简单快速的调谐和锁定程序，使输出波长稳定在钠光谱的多普勒自由特征上；(3)与科罗拉多州立大学现有的钠激光雷达一起测试和使用该系统。

An existing sodium lidar, installed at Colorado State University, makes significant geophysical measurements of temperature profiles in the mesopause region. An important element of this transmitter is a stable, narrowband cw laser beam that seeds the high power pulsed dye amplifier. The present unit, consisting of an argon-ion laser and single-mode ring dye laser, has the versatility required of an exploratory system, but has excessive space, power and maintenance requirements. Thus, a compact, solid-state cw light source is being developed at the Desert Research Institute. The PI will modify this solid state light source into an operational, portable unit by (1) mounting it on a small optical breadboard with enclosure, making the mechanical and optical setup more rugged; (2) developing simple and fast tuning and locking procedure to stabilize the output wavelength to Doppler free features of the sodium spectrum; and (3) testing and using the system in conjunction with the existing sodium lidar at CSU.