| 部分端面抽运板条激光器腔镜倾斜问题研究 |
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| 引用本文： | 王宁,陆雨田.部分端面抽运板条激光器腔镜倾斜问题研究[J].中国激光,2005,32(12):593-1598. |
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| 作者姓名： | 王宁 陆雨田 |
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| 作者单位： | 1. 中国科学院上海光学精密机械研究所,上海,201800;中国石油大学(华东)物理科学与技术学院,山东,东营,257061
2. 中国科学院上海光学精密机械研究所,上海,201800 |
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| 摘 要： | 部分端面抽运的板条激光器是一种新型固体激光器．配合混合腔可以实现在大功率下保持高光束质量的激光振荡输出。谐振腔的腔镜倾斜是影响激光器输出特性的重要因素，快速傅里叶方法是一种快捷有效的计算方法，利用此方法模拟了腔镜倾斜对近场相位分布和远场光强分布的影响，并分析了光束质量的变化。理论分析表明，腔镜的小角度倾斜对近场相位影响较大，但对远场光强空间分布影响不大；随着倾斜角度不断增大，远场发散角和光束腰宽度也增大，光束质量虽然存在恶化的趋势，但光束质量因子肝值仍然较小，离轴非稳腔仍能保持高光束质量的输出。
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| 关 键 词： | 激光技术 腔镜倾斜 快速傅里叶算法 离轴混合腔 |
| 文章编号： | 0258-7025（2005）12-1593-06 |
| 收稿时间： | 2005-03-18 |
| 修稿时间： | 2005-05-24 |
Sensitivity to Mirror Tilt of Off-Axis Hybrid Resonator for InnoSlab |
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| WANG Ning,LU Yu-tian.Sensitivity to Mirror Tilt of Off-Axis Hybrid Resonator for InnoSlab[J].Chinese Journal of Lasers,2005,32(12):593-1598. |
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| Authors: | WANG Ning LU Yu-tian |
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| Affiliation: | 1.Shanghai Institute of Optics and Fine Mechanics, The Chinese Academy of Sciences, Shanghai 201800, China ; 2.College of PHysics, China University of Petroleum ( Huadong |
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| Abstract: | Partially end-pumped slab laser is an innovative solid state laser.Combining the hybrid resonator with partially end-pumping,the output power can be scaled at high beam quality(called InnoSlab).The misalignment of resonator is important to the laser output character.By fast Fourier-transform(FFT) algorithm,the near-field phase and far-field intensity distribution with different mirror obliquity were simulated.The analysis showed that the near-field phase distribution is greatly influenced by mirror tilt, and the far-field intensity distribution is not affected greatly;the far-field divergence angle and beam waist width are increased,but the M~2 value is still small. |
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| Keywords: | laser technique mirror tilt fast Fourier-transform algorithm off-axis hybrid resonator |
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