Comparative investigation of lasing and amplification performance in cryogenic Yb:YLF systems

Demirbas Umit; Kellert Martin; Thesinga Jelto; Hua Yi; Reuter Simon; Kartner Franz X.; Pergament Mikhail

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Comparative investigation of lasing and amplification performance in cryogenic Yb:YLF systems

机译：低温yb中激光和扩增性能的比较研究：YLF系统

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We present detailed experimental results with cryogenic Yb:YLF gain media in rod-geometry. We have comparatively investigated continuous-wave (cw) lasing and regenerative amplification performance under different experimental conditions. In the cw lasing experiments effect of crystal doping, cw laser cavity geometry and pump wavelength on lasing performance were explored. Regenerative amplification behavior was analyzed and the role of depolarization losses on performance was investigated. A recently developed temperature estimation method was also employed for the first time in estimating average crystal temperature under lasing conditions. It is shown that the thermal lens induced by transverse temperature gradients is the main limiting factor and strategies for future improvements are discussed. To the best of our knowledge, the achieved results in this study (375 W in cw, and 90 W in regenerative amplification) are the highest average powers ever obtained from this system via employing the broadband E//a axis.

机译：我们用低温Yb提供详细的实验结果：杆几何中的YLF增益介质。在不同的实验条件下，我们在不同的实验条件下进行了相对调查的连续波（CW）激光和再生扩增性能。在CW激光实验中，探讨了CW激光腔几何形状和泵浦波长的效果。分析了再生扩增行为，研究了去极化损失对性能的作用。最近开发的温度估计方法也首次采用了在激光条件下估计平均晶体温度的第一次。结果表明，通过横向温度梯度引起的热镜头是讨论了未来改进的主要限制因素和策略。据我们所知，本研究中的实现结果（CW中的375 W和90 W在再生扩增）是从该系统通过采用宽带E // A轴获得的最高的平均功率。

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《Applied physics》 |2021年第3期|46.1-46.10|共10页
作者
Demirbas Umit; Kellert Martin; Thesinga Jelto; Hua Yi; Reuter Simon; Kartner Franz X.; Pergament Mikhail;
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Deutsch Elektronen Synchrotron DESY Ctr Free Elect Laser Sci Notkestr 85 D-22607 Hamburg Germany|Antalya Bilim Univ Dept Elect & Elect Engn Laser Technol Lab Antalya Turkey;

Deutsch Elektronen Synchrotron DESY Ctr Free Elect Laser Sci Notkestr 85 D-22607 Hamburg Germany;

Deutsch Elektronen Synchrotron DESY Ctr Free Elect Laser Sci Notkestr 85 D-22607 Hamburg Germany;

Deutsch Elektronen Synchrotron DESY Ctr Free Elect Laser Sci Notkestr 85 D-22607 Hamburg Germany;

Deutsch Elektronen Synchrotron DESY Ctr Free Elect Laser Sci Notkestr 85 D-22607 Hamburg Germany;

Deutsch Elektronen Synchrotron DESY Ctr Free Elect Laser Sci Notkestr 85 D-22607 Hamburg Germany|Univ Hamburg Dept Phys Luruper Chaussee 149 D-22761 Hamburg Germany|Hamburg Ctr Ultrafast Imaging Luruper Chaussee 149 D-22761 Hamburg Germany;

Deutsch Elektronen Synchrotron DESY Ctr Free Elect Laser Sci Notkestr 85 D-22607 Hamburg Germany;

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收录信息美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
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正文语种 eng
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Comparative investigation of lasing and amplification performance in cryogenic Yb:YLF systems

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