在高功率单一空间模式波导二极管激光器中提高功率转换效率,使用极端三重不对称的表轴结构
Xiaolei Zhao1, Lance Sweatt2, Taylor Levaur2
1Department of Electrical and Computer Engineering, Clemson University, Clemson, SC, 29634, USA. xiaolei@g.clemson.edu.
Scientific reports
|October 22, 2025
概括
高效率,瓦特级单空间模式波导激光器是使用极端三重不对称 (ETAS) 表轴结构开发的. 这些激光器显示了改进的转换效率和近衍射有限的光束质量,适用于苛刻的应用.
科学领域:
- 半导体激光器半导体激光器
- 光电学是指光电子产品.
- 材料科学 材料科学 材料科学
背景情况:
- 高效率,瓦特级单空间模式激光器在97x纳米处对于各种应用至关重要.
- 现有的极端双不对称 (EDAS) 结构在功率和效率方面存在局限性.
研究的目的:
- 为了研究和优化使用极端三重不对称 (ETAS) 表轴结构的波导 (RW) 激光器.
- 为了提高高功率单空间模式激光的转换效率和光束质量.
主要方法:
- 制造具有ETAS表轴设计的RW激光器.
- 优化反反射 (AR) 和高反射 (HR) 涂层.
- 激光效率,输出功率和光束质量的表征 (M2).
主要成果:
- 与高功率的EDAS结构相比,基于ETAS的激光显示了超过12%的改进转换效率.
- 一个7微米宽的ETAS激光在1W时实现了61.2%的峰值效率,在1.41W时保持了60.1%.
- 降低的AR反射率 (0.5%) 产生了接近衍射限制的单模发射 (M2 < 1.15) 高达1.45A.
结论:
- 由于ETAS的表轴结构显著提高了波导激光器的性能.
- 优化的ETAS激光器为高功率,高效率,单空间模式应用提供了有前途的解决方案.
- 这些发现为先进的光电子设备铺平了道路.
相关概念视频
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