Thermal distribution calculation in diode pumped Nd:YAG laser rod by boundary element method

Boundary element method is used to calculate the temperature distribution by solving the heat transfer equation in a laser rod. Propagation of the pumping beam in the rod, that is assumed to be pumped longitudinally, results in a temperature gradient. Such a gradient produces radial variation of the...

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Veröffentlicht in:	Optics and laser technology 2007-02, Vol.39 (1), p.46-52
Hauptverfasser:	Sovizi, M., Massudi, R.
Format:	Artikel
Sprache:	eng
Schlagworte:	Boundary element method Diode-pumped lasers Doped-insulator lasers and other solid state lasers Exact sciences and technology Fundamental areas of phenomenology (including applications) Laser Lasers Optics Physics
Online-Zugang:	Volltext
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Beschreibung
Zusammenfassung:	Boundary element method is used to calculate the temperature distribution by solving the heat transfer equation in a laser rod. Propagation of the pumping beam in the rod, that is assumed to be pumped longitudinally, results in a temperature gradient. Such a gradient produces radial variation of the refractive index and the rod behaves similar to a positive lens. Depending on the size of the pumping beam waist and absorption coefficient of the rod, a hot spot may form inside the rod.
ISSN:	0030-3992 1879-2545
DOI:	10.1016/j.optlastec.2005.05.010