蓝绿激光束在海水中光斑扩散规律的研究

The spot-spread blue-green laser beam in seawater

从蓝绿激光束在海水中的散射和吸收规律出发,运用能量守恒定律,研究了蓝绿激光束在海水中的能量扩散过程,导出了篮绿激光束光斑大小随海水水质参数和深度变化的解析公式,详细讨论了光斑大小与衰减系数和海水参数之间的关系,对已有的解析公式进行了有效地修正,对已取得的实验数据进行了正确阐释.研究结果对海洋探测和海洋激光雷达的研制有一定参考意义.

In accordance with the law of blue-green laser beam＇s scattering and absorption in seawater and energy consersation law, the energy diffusing process of blue-green laser beam in seawater was studied and the formula showing the size of light spot of blue-green laser beam was increased with parameters of seawater quality and its depth, and the relationship between the size of light spot with attenuation coefficient and seawater parameters. The existed formula was efficiently modified to explain the gained experiment data. The results can guide the ocean exploration and the development of ocean laser radar.