We propose a single-shot scheme to measure the orbital-angular-momentum (OAM) spectrum of a partially coherent field. We first test the scheme for a known field, and then use it to measure the OAM spectrum of the signal-idler field from parametric down-conversion with Schmidt number K = 82:1.
Publication Source (Journal or Book title)
Optics InfoBase Conference Papers
Kulkarni, G., Sahu, R., Magaña-Loaiza, O., Boyd, R., & Jha, A. (2018). Single-shot measurement of the orbital-angular-momentum spectrum of light. Optics InfoBase Conference Papers, Part F93-CLEO_QELS 2018 https://doi.org/10.1364/CLEO_QELS.2018.FW4F.7