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组件设计和稳定的SESAM模式锁定乱中的Yb:CaSrBaF₆单晶

Wudi Wang, Qingguo Wang, Chenbo Zhang

|November 22, 2024

概括

这项研究引入了以伊特为剂的,,,,化物 (Yb:CaSrBaF6) 作为一种新型的无序激光材料. 它展示了连续波和模式锁定激光操作,具有有前途的输出功率和效率.

科学领域:

固态激光材料是一种固态激光材料.
失序的化物晶体失序的化物晶体
稀土杂激光器的激光器.

背景情况:

新型激光材料的开发对于激光技术的发展至关重要.
多组分化物晶体提供独特的特性,由于组成障碍.
添加材料对近红外激光应用具有吸引力.

研究的目的:

设计,培养和表征一种新的Ytterbium-doped多元组合化水晶,Yb:CaSrBaF6.
为了研究Yb:CaSrBaF6.6的连续波 (CW) 和被动模式锁定激光性能.
评估其作为各种应用的无序激光材料的潜力.

主要方法:

使用温度梯度技术 (TGT) 的晶体生长.
使用X射线衍射 (XRD) 和X射线光 (XRF) 的结构和组成分析.
结构稳定性和离子分布的第一原则计算.
辐射属性的光谱表征.
激光振荡和模式锁定实验使用半导体和吸收镜 (SESAM).

主要成果:

成功生长了一种均的,单相Yb:CaSrBaF6晶体,其离子均分布.
实现的CW激光输出功率为1.128W,在1055.4nm时具有32%的斜率效率.
经过验证的连续波模式锁定 (CWML) 操作,产生 123 mW 的平均功率,脉冲持续时间为 89 ps,频率为 54.6 MHz.
由于局部结构混乱,观察到一个大的发射截面 (0.62 × 10-20 cm2) 和宽的FWHM (60.5 nm).

结论:

Yb:CaSrBaF6是一种有前途的新型无序激光材料.
该材料对CW和模式锁定操作具有有利的光谱和激光特性.
这项工作为开发与稀土离子合的其他无序激光材料提供了参考.

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