基于NiTe2的和吸收器用于被动Q开关的Ytterbium合纤维激光器
Kunpeng Wang1, Jie Fang2,3, Dang Wang2,3
1Lingyun Huagong Intelligent System (Wuhan) Co., Ltd., Wuhan 430058, China.
Materials (Basel, Switzerland)
|February 13, 2026
概括
二化物 (NiTe2) 是一种新型的迪拉克半金属,作为超快光子学的和吸收器 (SA) 是有前途的. 这项研究首次证明了其在添加纤维激光器中的应用,实现了稳定的Q开关脉冲.
科学领域:
- 材料科学 材料科学 材料科学
- 光子学是指光子学的使用方法.
- 凝聚物质物理学 凝聚物质物理学
背景情况:
- 二维过渡金属二甲基化物 (TMD) 对于超快光子学至关重要,但在带宽和载体恢复方面存在局限性.
- 二化物 (NiTe2) 是迪拉克半金属,具有宽带响应和强大的非线性特性,使其适用于和吸收器 (SAs).
研究的目的:
- 为了研究NiTe2的潜力作为和吸收物 (SA) 材料在添加纤维激光器中.
- 通过使用NiTe2.2,证明稳定的被动Q开关操作.
主要方法:
- 作为和吸收剂的NiTe2的制造和表征.
- 将NiTe2集成到一个全纤维环腔的合纤维激光器中.
- 对非线性传输,脉冲特征和射频 (RF) 频谱信号噪声比 (SNR) 的分析.
主要成果:
- 稳定的被动Q开关操作是通过在添加的纤维激光器中使用NiTe2实现的.
- 该材料的调制深度为6.82%,和强度为2.12MW/cm2在1μm.
- 获得了以1031nm为中心的Q开关脉冲,脉冲的最小宽度为2.3μs,最大脉冲重复频率为30.1kHz.
- 记录了高射频频谱信号与噪声比率 (SNR) 的58.9dB.
结论:
- 在近红外区域,NiTe2显示出作为高性能和吸收器 (SA) 的巨大潜力.
- 这项工作为在先进的超快激光技术中利用NiTe2提供了基础.
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