Paper
27 September 2016 Compact demultiplexing of optical vortices by means of diffractive transformation optics
Author Affiliations +
Abstract
Orbital angular momentum (OAM) states of light have been recently considered in new mode-division multiplexing techniques in order to increase the bandwidth of today’s optical networks. Many optical architectures have been presented and exploited in order to sort the different OAM channels. Here we present a diffractive version of the sorting technique based on log-pol optical transformation and we further improve the miniaturization level by integrating the two components into a single diffractive optical element. Samples have been fabricated with high-resolution electronbeam lithography and characterized in the optical range. The presented design is promising for integration into nextgeneration optical platforms performing optical processing of OAM modes, for applications both in free-space and optical fibers.
© (2016) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
G. Ruffato, M. Massari, and F. Romanato "Compact demultiplexing of optical vortices by means of diffractive transformation optics", Proc. SPIE 9950, Laser Beam Shaping XVII, 995003 (27 September 2016); https://doi.org/10.1117/12.2237765
Advertisement
Advertisement
RIGHTS & PERMISSIONS
Get copyright permission  Get copyright permission on Copyright Marketplace
KEYWORDS
Spiral phase plates

Optical components

Diffractive optical elements

Free space optics

Free space optics

Integrated optics

Optical vortices

RELATED CONTENT


Back to Top