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Thermal aberrations of higher-order OAM beams using compact end-pumped crystal rod MOPA’s

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Abstract

For power scaling of twisted light carrying orbital angular momentum (OAM) of l = 2, the presence of vertical astigmatism in end-pumped MOPAs - due to asymmetric thermal aberrations - results in the separation of phase singularities.

© 2022 The Author(s)

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