The effect of temperature on absorption in end-pumped Yb:YAG thin disk lasers
| Autor: | Seyfollah Toroghi, Ahmad Khayat Jafari, Ala Hashemi Golpayegani |
|---|---|
| Rok vydání: | 2009 |
| Předmět: |
Materials science
business.industry Monte Carlo method Physics::Optics Laser Atomic and Molecular Physics and Optics Electronic Optical and Magnetic Materials law.invention Ray tracing (physics) Crystal Thermal conductivity Optics Thin disk law Physics::Accelerator Physics Electrical and Electronic Engineering Absorption (electromagnetic radiation) business Distributed ray tracing |
| Zdroj: | Optics & Laser Technology. 41:800-803 |
| ISSN: | 0030-3992 |
| DOI: | 10.1016/j.optlastec.2008.12.004 |
| Popis: | In this paper, the dependence of the absorbed power on the temperature in an end-pumped CW quasi-three-level Yb:YAG thin disk laser is calculated. Here, we have used the temperature-dependent form of the Boltzmann occupation factors, absorption cross-section and thermal conductivity of the Yb:YAG crystal. A Monte Carlo ray tracing code and a 2D finite element analysis (FEA) with the ANSYS package have been used to calculate the absorbed power and the temperature distribution inside the Yb:YAG thin disk laser, respectively. According to the model, the temperature-dependent absorbed power turns out to be 18% less than the temperature-independent absorbed power in the top center of the Yb:YAG thin disk laser for used parameters. |
| Databáze: | OpenAIRE |
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