Influence of absorbed pump profile on the temperature distribution within a diode side-pumped laser rod

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• 作者：M H MOGHTADER DINDARLU ; M KAVOSH TEHRANI ; H SAGHAFIFAR ; A MALEKI…
• 关键词：Side ; pumped laser rod ; pump cavity ; absorbed pump profile ; temperature distribution ; super ; Gaussian profile
• 刊名：Pramana
• 出版年：2017
• 出版时间：February 2017
• 年：2017
• 卷：88
• 期：2
• 全文大小：
• 刊物类别：Physics and Astronomy
• 刊物主题：Physics, general; Astronomy, Observations and Techniques; Astrophysics and Astroparticles;
• 出版者：Springer India
• ISSN：0973-7111
• 卷排序：88

文摘

In this paper, an analytical model for temperature distribution of the side-pumped laser rod is extracted. This model can be used for side-pumped laser rods whose absorbed pump profile is a Gaussian profile. Then, it is validated by numerical results which exhibit a good agreement with the analytical results. Afterwards, by considering a general expression for super-Gaussian and top-hat profiles, and solving the heat equation, the influence of profile width and super-Gaussian exponent of the profile on temperature distribution are investigated. Consequently, the profile width turns out to have a greater influence on the temperature compared to the type of the profile.