Single-longitudinal-mode vortex Nd:YVO4 laser using a circular Dammann grating for pump shaping

Single-longitudinal-mode vortex Nd:YVO4 laser using a circular Dammann grating for pump shaping

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In this research, a 1064 nm single-longitudinal-mode (SLM) vortex beam was generated from Spacecraft Model Kit an annular-pumped Nd:YVO _4 microchip laser, in which a circular Dammann grating was used to reshape the 808 nm pump light into an annular intensity profile.As a result, the laser emitted a SLM LG _01 beam with a click here maximum output power of 192 mW.A straightforward technique for producing SLM vortex beams is made available by this work.