EFFECT OF PUMPING TYPES ON OPTICAL PATH DIFFERENCE IN ND:YAG LASER ROD
The finite element method has been used successfully to determine the temperature distribution throughout Nd:YAG laser rod subjected to one end power pumping cooled by water from the longitudinal side. Displacement, strain and stress are obtained numerically depending on the temperature distributio...
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| Format: | Article |
| Language: | English |
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University of Diyala
2010-12-01
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| Series: | Diyala Journal of Engineering Sciences |
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| Online Access: | https://djes.info/index.php/djes/article/view/627 |
| _version_ | 1811183288015912960 |
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| author | Zahraa Mohamed Ali Kamil |
| author_facet | Zahraa Mohamed Ali Kamil |
| author_sort | Zahraa Mohamed Ali Kamil |
| collection | DOAJ |
| description |
The finite element method has been used successfully to determine the temperature distribution throughout Nd:YAG laser rod subjected to one end power pumping cooled by water from the longitudinal side. Displacement, strain and stress are obtained numerically depending on the temperature distribution using Hook’s law. The influence of two types of pumping methods on temperature, displacement, strain and stress is obtained. The optical path difference is obtained and compared with a previously published experimental data and a good agreement has been found. Some conclusions are drawn; Gaussian beam pumping causes higher temperature distribution more than Top hat beam pumping at and near the center of the rod, which may cause higher optical path difference there. Even Top hat beam pumping causes some high tensile hoop stress, it may be a better choice while designing laser system since it results in low optical path difference
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| first_indexed | 2024-04-11T09:44:17Z |
| format | Article |
| id | doaj.art-8c71776c1b484bc19f7e65fb20389b6c |
| institution | Directory Open Access Journal |
| issn | 1999-8716 2616-6909 |
| language | English |
| last_indexed | 2024-04-11T09:44:17Z |
| publishDate | 2010-12-01 |
| publisher | University of Diyala |
| record_format | Article |
| series | Diyala Journal of Engineering Sciences |
| spelling | doaj.art-8c71776c1b484bc19f7e65fb20389b6c2022-12-22T04:31:06ZengUniversity of DiyalaDiyala Journal of Engineering Sciences1999-87162616-69092010-12-01EFFECT OF PUMPING TYPES ON OPTICAL PATH DIFFERENCE IN ND:YAG LASER RODZahraa Mohamed Ali Kamil The finite element method has been used successfully to determine the temperature distribution throughout Nd:YAG laser rod subjected to one end power pumping cooled by water from the longitudinal side. Displacement, strain and stress are obtained numerically depending on the temperature distribution using Hook’s law. The influence of two types of pumping methods on temperature, displacement, strain and stress is obtained. The optical path difference is obtained and compared with a previously published experimental data and a good agreement has been found. Some conclusions are drawn; Gaussian beam pumping causes higher temperature distribution more than Top hat beam pumping at and near the center of the rod, which may cause higher optical path difference there. Even Top hat beam pumping causes some high tensile hoop stress, it may be a better choice while designing laser system since it results in low optical path difference https://djes.info/index.php/djes/article/view/627Thermal lensingGaussian pumping methodTop hat pumping methodOptical path differenceThermal stressNd:YAG laser rod |
| spellingShingle | Zahraa Mohamed Ali Kamil EFFECT OF PUMPING TYPES ON OPTICAL PATH DIFFERENCE IN ND:YAG LASER ROD Diyala Journal of Engineering Sciences Thermal lensing Gaussian pumping method Top hat pumping method Optical path difference Thermal stress Nd:YAG laser rod |
| title | EFFECT OF PUMPING TYPES ON OPTICAL PATH DIFFERENCE IN ND:YAG LASER ROD |
| title_full | EFFECT OF PUMPING TYPES ON OPTICAL PATH DIFFERENCE IN ND:YAG LASER ROD |
| title_fullStr | EFFECT OF PUMPING TYPES ON OPTICAL PATH DIFFERENCE IN ND:YAG LASER ROD |
| title_full_unstemmed | EFFECT OF PUMPING TYPES ON OPTICAL PATH DIFFERENCE IN ND:YAG LASER ROD |
| title_short | EFFECT OF PUMPING TYPES ON OPTICAL PATH DIFFERENCE IN ND:YAG LASER ROD |
| title_sort | effect of pumping types on optical path difference in nd yag laser rod |
| topic | Thermal lensing Gaussian pumping method Top hat pumping method Optical path difference Thermal stress Nd:YAG laser rod |
| url | https://djes.info/index.php/djes/article/view/627 |
| work_keys_str_mv | AT zahraamohamedalikamil effectofpumpingtypesonopticalpathdifferenceinndyaglaserrod |