Single-mode operation of an injection-seeded alexandrite ring laser for application in water-vapor and temperature differential absorption lidar.
Single-mode operation of an injection-seeded alexandrite ring laser for application in water-vapor and temperature differential absorption lidar.
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DOI：
10.1364/ol.21.001150
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发表时间：
1996-08
期刊：
影响因子：
3.6
通讯作者：
V. Wulfmeyer;J. Bösenberg
中科院分区：
文献类型：
--
作者：
V. Wulfmeyer;J. Bösenberg
介绍了差分吸收激光雷达（DIAL）系统的一项重大改进。采用连续波钛宝石激光器注入种子激光，实现了单向紫翠宝石激光器的调Q。使用特别开发的单模电子器件，当从谐振腔与钛宝石激光器的频率谐振时，启动Q开关。实现了紫翠宝石激光器的长期单模运转。单次激发光谱线宽小于40 MHz，频率稳定度为15 MHz rms。因此，这是我们所知的第一个单模DIAL系统在近红外线。
A major improvement of a differential absorption lidar (DIAL) system for measurements of tropospheric water vapor and temperature is introduced. A Q-switched unidirectional alexandrite ring laser is injection seeded by a cw Ti:sapphire ring laser. Using an especially developed single-mode electronic, one starts the Q switch when the slave resonator is in resonance with the frequency of the Ti:sapphire laser. Long-term single-mode operation of the alexandrite laser is achieved. A single-shot spectral linewidth of <40 MHz and a frequency stability of 15 MHz rms can be specified. Thus what is to our knowledge the first single-mode DIAL system in the near infrared is presented.