Gailele, Lucas MMaweza, Elijah LDudley, Angela LNdagano, BRosales-Guzman, CForbes, A2017-07-282017-07-282017-02Gailele, 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, USAhttp://proceedings.spiedigitallibrary.org/proceeding.aspx?articleid=2606197doi:10.1117/12.2256085http://hdl.handle.net/10204/9299Copyright: 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.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.enOrbital angular momentumModal decompositionFree-space communicationMultiplexingComplex amplitude modulationConference PresentationGailele, L. M., Maweza, E. L., Dudley, A. L., Ndagano, B., Rosales-Guzman, C., & Forbes, A. (2017). Multiplexing of spatial modes in the mid-IR region. SPIE. http://hdl.handle.net/10204/9299Gailele, Lucas M, Elijah L Maweza, Angela L Dudley, B Ndagano, C Rosales-Guzman, and A Forbes. "Multiplexing of spatial modes in the mid-IR region." (2017): http://hdl.handle.net/10204/9299Gailele LM, Maweza EL, Dudley AL, Ndagano B, Rosales-Guzman C, Forbes A, Multiplexing of spatial modes in the mid-IR region; SPIE; 2017. http://hdl.handle.net/10204/9299 .TY - Conference Presentation AU - Gailele, Lucas M AU - Maweza, Elijah L AU - Dudley, Angela L AU - Ndagano, B AU - Rosales-Guzman, C AU - Forbes, A AB - 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. DA - 2017-02 DB - ResearchSpace DP - CSIR KW - Orbital angular momentum KW - Modal decomposition KW - Free-space communication KW - Multiplexing KW - Complex amplitude modulation LK - https://researchspace.csir.co.za PY - 2017 T1 - Multiplexing of spatial modes in the mid-IR region TI - Multiplexing of spatial modes in the mid-IR region UR - http://hdl.handle.net/10204/9299 ER -