Discretely tunable, all-solid-state laser in the green, yellow, and red |
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Authors: | Mildren Richard P Pask Helen M Ogilvy Hamish Piper James A |
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Institution: | Centre for Lasers and Applications, Macquarie University, Sydney, NSW 2109, Australia. rmildren@ics.mq.edu.au |
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Abstract: | We report an all-solid-state intracavity Raman laser with intracavity nonlinear sum-frequency generation providing visible output wavelengths selected from second harmonics and sum frequencies of the fundamental and Stokes fields. The laser comprises a diode end-pumped Nd:YAG laser, an acousto-optic Q switch, a KGd(WO4)2 Raman crystal, and a lithium borate nonlinear converter in a resonator designed to accommodate dynamic thermal lensing. For 20 W of pump power, output powers up to 1.8 W are demonstrated at wavelengths of 532, 555, 579, and 606 nm, selectable by angle and temperature tuning of the nonlinear medium. |
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