Power and radiance scaling of a 946 nm Nd:YAG planar waveguide laser |
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Authors: | S P Ng J I Mackenzie |
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Institution: | 1.Optoelectronics Research Centre,University of Southampton,Highfield, Southampton,UK |
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Abstract: | We present a diode-end-pumped Nd:YAG planar waveguide laser operating on neodymium’s quasi-four-level transition at a wavelength
of 946 nm. Two modes of operation are described: a high-power multi-mode monolithic cavity generating 105 for 210 W of incident
pump power with a slope efficiency of ∼54%, and secondly, a high-radiance configuration employing an external stable resonator
producing a maximum output power of 29.2 for 86.5 W of incident pump-power, with a slope efficiency of 33%. The output beam
quality values of the external cavity were M2 of 3.2 by 2.4, leading to a maximum radiance of 0.43 GW cm−2 sr−1. |
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