Simulation of thermal lensing in an end-pumped Nd:YAG laser rod with Gaussian and super-Gaussian pump beam profile | ||
| Iraqi Journal of Physics | ||
| Article 1, Volume 11, Issue 20, April 2013, Pages 81-84 | ||
| Author | ||
| Mohammed Jalal Abdul-Razzak | ||
| Abstract | ||
| A numerical simulation is made on the thermal lensing effect in an laser diode end-pumped Nd:YAG laser rod. Based on finite element method (FEM), the laser rod temperature distribution is calculated and the focal length is deduced for a Gaussian and super-Gaussian pump beam profiles. At the pump power of 20W, the highest temperature located at the center of end-pumped face was 345K, and the thermal lens focal length was 81.4mm along the x-z axis. The results indicate that the thermal lensing effect sensitively depend on the pump power, waist radius of the pump beam and the pump distribution in a laser rod geometry. | ||
| Keywords | ||
| Thermal Lensing; Finite element method; End; Pumping Nd | ||
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