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高功率Ho:Y₂O₃陶激光器,可控制的输出强度配置在2.1微米

Chuanyong Ren, Ke Ma, Fei Wang

|June 29, 2023

概括

这项研究证明了2.1微米的高功率氧化物 (Ho:Y2O3) 陶激光器. 它在这个波长区域中首次实现可控制的输出光束配置,包括甜甜圈和平顶模式.

科学领域:

激光物理激光物理
材料科学材料科学材料科学
光子学是一个光子学.

背景情况:

运行在约2微米的高功率激光器对于各种应用至关重要.
控制激光器的输出束形状对于束形状和特定应用至关重要.

研究的目的:

开发一种高功率的氧化 (Ho:Y2O3) 陶激光器.
为了证明在2.1μm波长下连续调节的输出光束配置.
为了实现高效的激光操作,可控制的光束特性.

主要方法:

对于Ho:Y2O3陶激光器,采用了简单的两镜共振器设计.
使用图 (Tm) 纤维激光器在1943 nm的带内送.
使用毛细纤维和透镜组合塑造了Tm纤维激光束,用于分布式吸收和选择性模式激发.

主要成果:

实现了各种光束配置的高输出功率:29.7W (LG01甜甜圈),28.0W (坑道式),27.7W (平顶式) 和33.5W (TEM00).
观察到不同输出模式的高斜率效率在54.3%至61.2%之间.
证明了~2μm区域内激光器输出强度配置文件的首次连续调整性.

结论:

成功开发了一种具有可调节束形状的高功率Ho:Y2O3陶激光器.
频段内方案有效地使目标激光模式的选择性激发成为可能.
这项工作代表了2微米激光技术的重大进步,提供了多样化的光束成型能力.

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