平面波导激光器的激光介质既能实现大模体积运转,又在一维方向起到波导作用从而获得高光束质量激光输出,近年来成为高平均功率固体激光器的重要研究方向之一.对国内外平面波导激光器的研究进展进行了归纳总结,对比和分析了平面波导的双包层波导结构、梯形波导结构和自成像结构等结构特点,分析了平面波导结构的发展及趋势,并提出了平面波导激光器发展成为高功率激光器的一些限制因素.

Planar waveguide laser has been one of the most promising high power solid-state lasers,due to its outstanding performance in terms of large mode volume and one dimension being confined.The current status and future perspectives of planar waveguide lasers at home and abroad are reviewed.Some attractive structures of planar waveguides are compared and discussed in detail,including double-clad waveguide configuration,the tapered structure waveguide and the self-imaging structure.The advancements of high power planar waveguide lasers as well as some limitations are analyzed.