Diode pumping of a solid-state laser rod by a two-dimensional CPC-elliptical cavity with intervening optics |
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Authors: | Dawei Liang |
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Institution: | CEFITEC, Departamento de Física, FCT, Universidade Nova de Lisboa, 2825,Campus de Caparica, Portugal |
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Abstract: | The pump radiation from a large area two-dimensional diode stack is concentrated into a cylindrical intervening optics by a first-stage 2D-CPC concentrator. The compressed radiation from the intervening optics is then efficiently coupled into a laser rod by a second-stage 2D-elliptical pump cavity. Depending on the width of the pump source, optimized rod mounting position is found through a non-sequential ray-tracing analysis. By comparing with the performance of a 2D-CPC-CPC cavity, significant improvements in both absorption efficiency and absorption distribution are achieved by a 2D-CPC-EL cavity. This asymmetric pumping scheme constitutes also an effective alternative to conventional symmetric pumping approaches. |
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Keywords: | Lasers Diode-pumped Pumping |
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