0.9~1.0μm近红外连续光纤激光器的研究进展

Research progress of 0.9~1.0μm near-infrared continuous-wave fiber lasers

波长为0.9~1.0μm的近红外连续光纤激光器在高功率蓝光和紫外激光产生、高功率单模泵浦源、生物医学以及激光雷达等领域具有重要的应用前景,成为近年来的一个研究热点。目前,0.9~1.0μm光纤激光器的增益机制主要有稀土离子增益和非线性效应增益,本文详细梳理了基于这两类增益机制的0.9~1.0μm连续光纤激光器的研究进展,并深入分析了各类激光器存在的技术瓶颈及解决途径,最后对0.9~1.0μm光纤激光器的发展趋势和应用前景进行了展望。

Near-infrared continuous-wave fiber lasers with wavelengths of 0.9~1.0μm have important application prospects in the fields of high-power blue and ultraviolet laser generation,high-power single-mode pump sources,biomedicine and lidars.They have thus become a heavily researched topic in recent years.At present,their gain mechanisms mainly include a rare earth ion gain or a nonlinear effect gain.In this paper,the research progress of 0.9~1.0μm fiber lasers based on these two kinds of gain mechanisms are reviewed in detail,and the technical bottlenecks and solutions of these lasers are analyzed.Furthermore,the potential directions for the future of their research are proposed.