High-average-power all-solid-state lasers based on new crystalline Raman materials

我们最近在全固态腔内拉曼激光器的开发方面取得了重大进展，该激光器在近红外和（通过倍频）可见光谱中产生数瓦平均功率，在生物医学和遥感方面具有重要应用。新一代拉曼晶体，特别是钨酸盐，具有卓越的光学、机械和热性能，有望实现高拉曼增益和斯托克斯频移选择。该项目将研究这些材料的一系列关键问题，包括斯托克斯波长的控制、相关的偏振控制以及提供最大拉曼激光功率和效率的泵浦谐振器配置。该项目将带来最先进的源技术，具有良好的商业化和实际应用前景。

We have recently made significant advances in development of all-solid-state intracavity Raman lasers generating multiwatt average powers in the near infrared and (by frequency doubling) visible spectrum, with important applications in biomedicine and remote sensing. A new generation of Raman crystals, especially tungstates, offer superior optical, mechanical and thermal properties, promising high Raman gains and choice of Stokes frequency shift. The project will investigate a range of key issues for these materials including control of the Stokes wavelength, associated polarisation control, and pump-resonator configurations giving maximum Raman laser power and efficiency. The project will lead to state-of-the-art source technology with outstanding prospects for commercialisation and practical application.