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高级热偏差的原因及其对末端入 Nd:YVO₄晶体的光束质量的影响

Yuhong Shen, Bin Liu, Xiaoyan Qiu

|August 12, 2025

概括

高功率的入和合物或酸 (Nd:YVO4) 晶体可能会导致异常. 光路误差和不均的散热降低了光束质量,需要精确的操作条件.

科学领域:

光学和光子学在光学和光子学.
材料科学材料科学材料科学
激光物理激光物理

背景情况:

高级异常,包括三角性纹症和昏迷,可能会对激光性能产生负面影响.
合的伊特rium orthovanadate (Nd:YVO4) 晶体被广泛用于高功率激光系统.
了解偏差源对于在激光应用中保持光束质量至关重要.

研究的目的:

为了研究末端送的 Nd:YVO4 晶体中高阶异常的原因.
为了将温度分布与高功率送下的偏差生成相关联.
为最佳运行条件和光学路径公差提供准则.

主要方法:

使用高分辨率红外热摄像头测量Nd:YVO4晶体端面的温度分布.
采用理论分析来建模偏差的形成.
在高功率抽条件下进行了实验.

主要成果:

识别了不均的散热和光路调整错误作为高阶偏差的主要来源.
证明了温度分布和偏差严重程度之间的直接联系.
由于诱导偏差,观察到光束质量的恶化.

结论:

精确的光路对齐和均的散热对于最小化Nd:YVO4激光器的偏差至关重要.
建立了运行条件和容忍范围,以保持高光束质量.
实验发现验证了异常形成的理论模型.

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