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Direct generation of pulsed vortex beam from a Tm:LuYAG laser at 2018 nm

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Abstract

Vortex pulses in the 2 μm spectral region are directly generated from a Q-switched Tm:LuYAG laser. Pulse energies of 1.48 mJ for LG0,+1 mode and 1.51 mJ for LG0,–1 mode are respectively achieved.

© 2019 The Author(s)

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