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22 April 2016 Discrete excitation of mode pulses using a diode-pumped solid-state digital laser
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In this paper, we experimentally demonstrate novel method of generating discrete excitation of on-demand Lagaurre-Gaussian (LG) mode pulses, in a diode pumped solid-state digital laser. The digital laser comprises of an intra-cavity spatial light modulator (SLM) that acts as an end-mirror of the resonator for uploading digital holograms, for the selection of discrete LG modes and controlling the quality facto, Q of the resonator. Discrete excitation of LG mode pulses of azimuthal-order l of 0, 1, 2, with zero radial-order (p = 0) were generated. Pulses of duration 200 ms and intensities as high as 1 mW with repetition speed of 60 Hz were produced at 1 um wavelength. The maximum peak power-conversion efficiency measured was 1.3%.
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Sandile Ngcobo and Teboho Bell "Discrete excitation of mode pulses using a diode-pumped solid-state digital laser", Proc. SPIE 9727, Laser Resonators, Microresonators, and Beam Control XVIII, 97271J (22 April 2016);

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