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

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

Research output: Contribution to journalArticlepeer-review

22 Citations (Scopus)


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 OAMand 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.

Original languageEnglish
Pages (from-to)3249-3252
Number of pages4
JournalOptics Letters
Issue number14
Publication statusPublished - 15 Jul 2016
Externally publishedYes


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