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Wavelength-selective orbital-angular-momentum beam generation using MEMS tunable Fabry-Perot filter

Paul, Sujoy; Lyubopytov, Vladimir S.; Schumann, Martin F.; Cesar, Julijan; Chipouline, Arkadi; Wegener, Martin; Küppers, Franko

We demonstrate an on-chip device capable of wavelength-selective generation of vortex beams, which is realized by a spiral phase plate integrated onto a microelectromechanical system (MEMS) tunable filter. This vortex MEMS filter, being capable of functioning simultaneously in both wavelength and orbital-angular-momentum (OAM) domains at the 1550 nm wavelength regime, is considered as a compact, robust, and cost-effective solution for simultaneous OAM- and wavelength-division multiplexed optical communications. The experimental OAM spectra for azimuthal orders 1, 2, and 3 show an OAM state purity >92\% across a wavelength range of more than 30 nm.

Zugehörige Institution(en) am KIT Institut für Angewandte Physik (APH)
Institut für Nanotechnologie (INT)
Publikationstyp Zeitschriftenaufsatz
Jahr 2016
Sprache Englisch
Identifikator ISSN: 0146-9592, 1539-4794
KITopen ID: 1000057811
HGF-Programm 43.23.01; LK 01
Erschienen in Optics letters
Band 41
Heft 14
Seiten 3249-3252
Schlagworte Fabry-Perot, Optical microelectromechanical devices, Optical vortices
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