GENERAL ENQUIRIES: Tel: + 27 12 841 2911 | Email:

Show simple item record Gailele, Lucas M Maweza, Elijah L Dudley, Angela L Ndagano, B Rosales-Guzman, C Forbes, A 2017-07-28T08:58:03Z 2017-07-28T08:58:03Z 2017-02
dc.identifier.citation Gailele, L.M., Maweza, E.L., Dudley, A.L. et al. 2017. Multiplexing of spatial modes in the mid-IR region. SPIE 10090, Laser Resonators, Microresonators, and Beam Control XIX, 100900Z, 28 January - 2 February 2017, San Francisco, USA en_US
dc.identifier.uri doi:10.1117/12.2256085
dc.description Copyright: 2017 SPIE. Due to copyright restrictions, the attached PDF file only contains the abstract of the full text item. For access to the full text item, please consult the publisher's website. en_US
dc.description.abstract Traditional optical communication systems optimize multiplexing in polarization and wavelength both transmitted in fiber and free-space to attain high bandwidth data communication. Yet despite these technologies, we are expected to reach a bandwidth ceiling in the near future. Communications using orbital angular momentum (OAM) carrying modes offers in finite dimensional states, providing means to increase link capacity by multiplexing spatially overlapping modes in both the azimuthal and radial degrees of freedom. OAM modes are multiplexed and de-multiplexed by the use of spatial light modulators (SLM). Implementation of complex amplitude modulation is employed on laser beams phase and amplitude to generate Laguerre-Gaussian (LG) modes. Modal decomposition is employed to detect these modes due to their orthogonality as they propagate in space. We demonstrate data transfer by sending images as a proof-of concept in a lab-based scheme. We demonstrate the creation and detection of OAM modes in the mid-IR region as a precursor to a mid-IR free-space communication link. en_US
dc.language.iso en en_US
dc.publisher SPIE en_US
dc.relation.ispartofseries Worklist;18675
dc.subject Orbital angular momentum en_US
dc.subject Modal decomposition en_US
dc.subject Free-space communication en_US
dc.subject Multiplexing en_US
dc.subject Complex amplitude modulation en_US
dc.title Multiplexing of spatial modes in the mid-IR region en_US
dc.type Presentation en_US

Files in this item

This item appears in the following Collection(s)

Show simple item record

Search ResearchSpace

Advanced Search


My Account