Simulation of thermal lensing in an end-pumped Nd:YAG laser rod with Gaussian and super-Gaussian pump beam profile
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...
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| Format: | Article |
| Language: | English |
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University of Baghdad
2019-02-01
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| Series: | Iraqi Journal of Physics |
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| Online Access: | https://ijp.uobaghdad.edu.iq/index.php/physics/article/view/385 |
| _version_ | 1811154788369301504 |
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| author | Mohammed Jalal Abdul-Razzak |
| author_facet | Mohammed Jalal Abdul-Razzak |
| author_sort | Mohammed Jalal Abdul-Razzak |
| collection | DOAJ |
| description |
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.
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| first_indexed | 2024-04-10T04:22:56Z |
| format | Article |
| id | doaj.art-8bba2de36b5e4e47beaec539563d84ae |
| institution | Directory Open Access Journal |
| issn | 2070-4003 2664-5548 |
| language | English |
| last_indexed | 2024-04-10T04:22:56Z |
| publishDate | 2019-02-01 |
| publisher | University of Baghdad |
| record_format | Article |
| series | Iraqi Journal of Physics |
| spelling | doaj.art-8bba2de36b5e4e47beaec539563d84ae2023-03-10T20:56:54ZengUniversity of BaghdadIraqi Journal of Physics2070-40032664-55482019-02-01112010.30723/ijp.v11i20.385Simulation of thermal lensing in an end-pumped Nd:YAG laser rod with Gaussian and super-Gaussian pump beam profileMohammed Jalal Abdul-Razzak 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. https://ijp.uobaghdad.edu.iq/index.php/physics/article/view/385Thermal lensing, Finite Element Method (FEM), End-Pumping Nd:YAG Laser Rod. |
| spellingShingle | Mohammed Jalal Abdul-Razzak Simulation of thermal lensing in an end-pumped Nd:YAG laser rod with Gaussian and super-Gaussian pump beam profile Iraqi Journal of Physics Thermal lensing, Finite Element Method (FEM), End-Pumping Nd:YAG Laser Rod. |
| title | Simulation of thermal lensing in an end-pumped Nd:YAG laser rod with Gaussian and super-Gaussian pump beam profile |
| title_full | Simulation of thermal lensing in an end-pumped Nd:YAG laser rod with Gaussian and super-Gaussian pump beam profile |
| title_fullStr | Simulation of thermal lensing in an end-pumped Nd:YAG laser rod with Gaussian and super-Gaussian pump beam profile |
| title_full_unstemmed | Simulation of thermal lensing in an end-pumped Nd:YAG laser rod with Gaussian and super-Gaussian pump beam profile |
| title_short | Simulation of thermal lensing in an end-pumped Nd:YAG laser rod with Gaussian and super-Gaussian pump beam profile |
| title_sort | simulation of thermal lensing in an end pumped nd yag laser rod with gaussian and super gaussian pump beam profile |
| topic | Thermal lensing, Finite Element Method (FEM), End-Pumping Nd:YAG Laser Rod. |
| url | https://ijp.uobaghdad.edu.iq/index.php/physics/article/view/385 |
| work_keys_str_mv | AT mohammedjalalabdulrazzak simulationofthermallensinginanendpumpedndyaglaserrodwithgaussianandsupergaussianpumpbeamprofile |