一个单一的微腔激光器,同时通过晶体在玻璃工程实现向上转换和频率翻倍激光
Shengda Ye1, Jianhao Chen1, Jiayue He1
1State Key Laboratory of Luminescent Materials and Devices, School of Materials Science and Engineering, South China University of Technology, Guangzhou, China.
Light, science & applications
|January 25, 2026
概括
这项研究介绍了一种用于微纳米光源的新型晶体在玻璃复合材料. 它在单个微腔中实现了同时升级转换 (UC) 激光和频率加倍激光,为先进的集成光子学铺平了道路.
科学领域:
- 综合光子学 综合光子学
- 材料科学 材料科学 材料科学
- 非线性光学是非线性光学.
背景情况:
- 开发多功能微纳米光源对于集成光子学至关重要.
- 现有的材料往往难以有效地结合不同的光发射机制.
- 低声画廊模式 (WGM) 微腔提供了高质量的光操控因素.
研究的目的:
- 为多功能微纳米光源展示一种新的晶体在玻璃复合结构.
- 为了在单个微腔内实现双模式光学响应,包括上转换 (UC) 激光和频率加倍激光.
- 探索可调节激光器和芯片上非线性光子系统的潜力.
主要方法:
- 制造Er3+/Yb3+-加密玻璃陶 (GC) WGM微腔体,其中包含Ba2TiGe2O8 (BTG) 晶体.
- 使用低声能芽玻璃矩阵用于UC增益和BTG微晶用于第二波生成 (SHG).
- 采用线状纤维近场合和femtosecond自由空间送用于激发和测量.
主要成果:
- 在30μm直径的微腔中,实现了绿色 (550nm) 和红色 (660nm) 的低值 (13.31μW和12.97μW) 的UC激光.
- 由于BTG GC.中的随机准相匹配 (RQPM) 机制,证明了超宽带的频率翻倍响应从900nm到1200nm.
- 在单个微腔内成功实现了UC激光和频率加倍激光的同时输出.
结论:
- 开发的晶体在玻璃复合材料可以为集成光子学提供多功能光源.
- 混合材料的设计允许合作的光场操纵.
- 这项工作为可调节激光器和先进的芯片上非线性光子系统提供了基础.
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