Generation of a Spatiotemporal OAM Beam with a Time-Variant Beam Waist Using Coherent Combination of Multiple Frequencies Each Containing Multiple LG modes

Amir Minoofar; Zhe Zhao; Ahmad Fallahpour; Hao Song; Runzhou Zhang; Kaiheng Zhou; Kai Pang; Moshe Tur; Alan E. Willner

doi:10.1364/FIO.2020.FM7C.4

Abstract

We simulate a spatiotemporal OAM beam with a time-variant beam waist by coherent combining multiple frequencies each containing multiple LG modes. We analyze its beam waist oscillation depending on the number of frequencies and modes.

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