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Updated: May 14, 2025

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在Zr-diffusion-doped坦酸脊波导中向近紫外线的第二次波生成

Sergiy Suntsov, Chaitanya Sharma, Kore Hasse

|April 12, 2025

概括

我们在新的酸 (LiTaO₃) 波导中实现了高效的第二波生成. 这种新的制造方法为紫外线光应用提供了高光折射损伤性.

科学领域:

非线性光学是一种非线性光学.
材料科学是一种材料科学.
综合光子学综合光子学

背景情况:

坦酸 (LiTaO) 是非线性光学设备的关键材料.
现有的波导制造方法经常受到低光折射损伤值的影响.
通过第二波生成 (SHG) 高效地产生紫外线对于各种应用至关重要.

研究的目的:

开发一种新的制造方法,用于定期极点的LiTaO₃波导.
在近紫外线波长下实现高效的第二波生成 (SHG).
为了增强LiTaO₃波导的光折射损伤阻力.

主要方法:

使用高温中扩散ZrO₂到LiTaO₃基板制造平面波导.
通过在富含的大气中通过蒸汽运输平衡来改善晶体静态度.
使用钻石刀制造低损失的脊波导.

主要成果:

证明了在399.7nm的高效第二波生成 (SHG).
在540mW的功率下,实现了3.5%·W-1·cm-2的正常化转换效率.
制造的波导显示出高光折射损伤值和32 pm/°C的温度调节系数.

结论:

这种新的制造方法产生了高性能LiTaO₃波导,用于高效的SHG.
这些波导克服了传统制造技术的局限性,提供了卓越的光折射电阻.
结果表明,使用集成光子设备,有可能产生强大的紫外线光.

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