High-power, injection-seeded Ti:sapphire laser designed for frequency conversion of a 200-W diode-laser pumped laser system

本提案的主题是开发用于水蒸气遥感的高性能激光发射机的三个组成部分中的两个。第三个组成部分，一个独特的泵激光器，以前未实现的功率是本包建议中的建议1的主题。为了与具有如此高的单次激发脉冲能量的泵浦源兼容，对两个剩余的部件，即频率转换器和频率稳定模块设置了极高的要求。第一个模块是平均功率为20 W、总效率为10%的脉冲钛宝石激光器.第二个是新颖的双频，可调注入种子模块，确保维护的要求，相对于钛：蓝宝石激光器的光谱特性。对于未来在不同平台上的常规和操作测量，必须达到超过当前系统一个量级的功率水平。创新性的研究方面的热建模和补偿的热效应钛：蓝宝石将进行。将开发先进的谐振腔配置，使激光器的操作具有优化的能量提取效率，高光束质量和差分吸收激光雷达（DIAL）测量所需的光谱特性。

The subject of this proposal is the development of two of the three components of a high-performance laser transmitter for water vapor remote sensing. The third component, a unique pump laser of formerly unachieved power is the subject of proposal 1 within this package proposal. To be compatible with a pump source of such a high single-shot pulse energy, extremely high requirements are set to the two remaining components, the frequency converter and the frequency stabilization modules. The first module ist a pulsed 20-W average power, 10 % overall efficiency Ti:sapphire laser. The second is novel dual-frequency, tunable injection-seeder module ensuring the maintenance of the requirements with respect to the spectral properties of the Ti:sapphire laser. For future routine and operational measurements on different platforms it is essential to reach this power level which exceeds current systems by one of magnitude. Innovative research with respect to thermal modeling and compensation of thermal effects of Ti:sapphire will be performed. Advanced resonator configurations will be developed permitting laser operation with optimized energy extraction efficiency, high beam quality and with the spectral properties required for differential absorption lidar (DIAL) measurements.