Tailoring the absorption distribution in lamp-pumped solid-state lasers with fused silica light-guides |
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Authors: | Pedro H. Bernardes Dawei Liang |
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Affiliation: | aCEFITEC, Departamento de Física, FCT, Universidade Nova de Lisboa, 2825 Campus de Caparica, Portugal |
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Abstract: | An analysis is made on the absorption distribution within a cylindrical active medium lamp pumped by means of fused silica light-guides. The performances of the proposed pump cavities are analysed through a non-sequential 3D ray-trace program and are compared to those of three reflective chambers: an elliptical cavity, a close-coupled cavity and a diffusive close-wrap cavity. Two light-guides cavities with eight and nine guides, respectively, were built and tested. High coupling efficiency and a reasonable uniform absorption distribution were registered. An overall laser efficiency of 1% was measured. The proposed cavities have permitted the tailoring of the absorption distribution within the laser rod. |
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Keywords: | Absorption distribution Lamp-pumped |
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