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https://www.ias.ac.in/article/fulltext/pram/088/02/0036

Side-pumped laser rod; pump cavity; absorbed pump profile; temperature distribution; super- Gaussian profile.

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.

M H MOGHTADER DINDARLU¹ H TEHRANI M KAVOS² H SAGHAFIFAR² A MALEKI² GH SOLOOKINEJAD¹ M JABBARI³

1. Department of Physics, Marvdasht Branch, Islamic Azad University, Marvdasht, Iran
2. Institute of Optics and Laser, Malek-ashtar University of Technology, Shahin Shahr, Postal Code: 83145/115, Iran
3. Department of Electronic Engineering, Marvdasht Branch, Islamic Azad University, Marvdasht, Iran

Published

16 February 2017

Manuscript received

12 December 2015

Manuscript revised

2 May 2016

Accepted

20 July 2016

Early published

20 January 2017