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GaN diode-pumping of red semiconductor disk laser

Smith, A. and Hastie, J.E. and Foreman, H.D. and Leinonen, T. and Guina, M. and Dawson, M.D. (2008) GaN diode-pumping of red semiconductor disk laser. Electronics Letters, 44 (20). pp. 1195-1196. ISSN 0013-5194

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A red-wavelength semiconductor disk laser (SDL) optically pumped by gallium nitride laser diodes is reported. This is believed to be the first demonstration of a directly diode-pumped visible wavelength SDL. In this initial demonstration, pump-power-limited continuous-wave output power up to 12.2 mW was achieved around room temperature in a single transverse mode with 2 output coupling. Insertion of an intracavity birefringent filter allowed tuning of the output over 11 nm around a centre wavelength of 672 nm.