We introduce and report experimental realization of amethod to measure the topological charge of radiation carrying orbital angular momentum by accessing a small portion of the wavefront. The method exploits the superposition of matched-curvature beams in separated frequency bands to achieve a differential measure realized by a pair of phase-sensitive detectors. The method is suitable for long-distance communications.
A composite beam of radiation with orbital angular momentum allows effective local, single-shot measurement of topological charge / B. Paroli, M. Siano, M.A.C. Potenza. - In: OPTICS COMMUNICATIONS. - ISSN 0030-4018. - 459(2020 Mar 15).
Titolo: | A composite beam of radiation with orbital angular momentum allows effective local, single-shot measurement of topological charge |
Autori: | SIANO, MIRKO (Secondo) POTENZA, MARCO ALBERTO CARLO (Ultimo) |
Parole Chiave: | Optical vortex; Singular optics; Telecommunication |
Settore Scientifico Disciplinare: | Settore FIS/03 - Fisica della Materia |
Data di pubblicazione: | 15-mar-2020 |
Rivista: | |
Tipologia: | Article (author) |
Digital Object Identifier (DOI): | http://dx.doi.org/10.1016/j.optcom.2019.125049 |
Appare nelle tipologie: | 01 - Articolo su periodico |
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