Angular Lens

Abstract

We propose a single phase-only optical element that transforms different orbital angular momentum (OAM) modes into localized spots at separated angular positions on a transverse plane. We refer to this element as an angular lens since it separates out OAM modes in a manner analogous to how a converging lens separates out transverse wave-vector modes at the focal plane. We also simulate the proposed angular lens using a spatial light modulator and experimentally demonstrate its working. Our work can have important implications for OAM-based classical and quantum communication applications.

5 pages, 5 figures

References in corpus (4)

• Efficient Toffoli Gates Using Qudits
• Fourier relationship between angular position and optical orbital angular momentum
• Near-Perfect Sorting of Orbital Angular Momentum and Angular Position States of Light
• Error tolerance of two-basis quantum key-distribution protocols using qudits and two-way classical communication

Cited by in corpus (4)

• Conservation of angular momentum on a single-photon level
• Polarization selective Dove prism
• Single Plane Spatial Mode Sorter
• Sorting light's radial momentum and orbital angular momentum with a parabola-like lens