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Conferences > CLEOPR > 2022 > CThP1H > CThP1H_03

Ring Cavity Vortex Laser using a Wedge-Plate Shearing Interferometer

Abdul-Haseeb Munj and William R. Kerridge-Johns

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Abstract

We construct a compact unidirectional Nd:YVO4 ring laser generating watt-level vortex beam (LG01) output with high mode purity (98%) in a single longitudinal mode. This was enabled through a wedge-plate shearing interferometer (WPSI) acting as a Gaussian to LG01 mode conversion device and output coupler. This compact and cheap device uses off-the-shelf components. The design could be adapted to any gain medium for wavelength versatility.

© 2022 IEEE

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