Mhlanga, TTrichili, ADudley, Angela LNaidoo, DarrylZghal, MForbes, A2015-03-122015-03-122014-10-02Mhlanga, T, Trichilic, A, Dudley, A.L., Naidoo, D, Zghal, M and Forbes, A. 2014. Digital holograms for laser mode multiplexing. In: Proceedings of SPIE, Laser Beam Shaping XV, 2 October 2014http://proceedings.spiedigitallibrary.org/proceeding.aspx?articleid=1910842http://hdl.handle.net/10204/7879Copyright: 2014 SPIE Proceedings, San Diego, California, United States. This is the abstract only of the conference proceedings. The definitive version of the work is published in the SPIE Proceedings, Vol. 9257. 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.High-capacity data transmission has been implemented using single channel optical systems. This technique is limited and soon it will be unable to ful ll the growing needs for higher bit rate data transmission. Hence multi-mode transmission has been recently given attention as a potential solution to the current problems. In this context, we demonstrate a method of multiplexing laser modes using spatial light modulators (SLMs). In our proposed technique, we use Laguerre Gaussian (LG) modes, which form a complete basis set; hence multi-mode masks can be created by taking a linear combination of the LG modes. Since LG modes are characterised by two degrees of freedom, the azimuthal index ` and radial index , this allows for multi-dimensional states. There are however some experimental challenges which include the sensitivity of the setup to misalignment, that leads to mode-coupling. It is also important that the injected modes ha a uniform power spectrum so that are weighted equally. The size of the multi-modes is highly dependent on the resolution of the SLM.enMode couplingMultiplexSpatial modesConference PresentationMhlanga, T., Trichili, A., Dudley, A. L., Naidoo, D., Zghal, M., & Forbes, A. (2014). Digital holograms for laser mode multiplexing. SPIE. http://hdl.handle.net/10204/7879Mhlanga, T, A Trichili, Angela L Dudley, Darryl Naidoo, M Zghal, and A Forbes. "Digital holograms for laser mode multiplexing." (2014): http://hdl.handle.net/10204/7879Mhlanga T, Trichili A, Dudley AL, Naidoo D, Zghal M, Forbes A, Digital holograms for laser mode multiplexing; SPIE; 2014. http://hdl.handle.net/10204/7879 .TY - Conference Presentation AU - Mhlanga, T AU - Trichili, A AU - Dudley, Angela L AU - Naidoo, Darryl AU - Zghal, M AU - Forbes, A AB - High-capacity data transmission has been implemented using single channel optical systems. This technique is limited and soon it will be unable to ful ll the growing needs for higher bit rate data transmission. Hence multi-mode transmission has been recently given attention as a potential solution to the current problems. In this context, we demonstrate a method of multiplexing laser modes using spatial light modulators (SLMs). In our proposed technique, we use Laguerre Gaussian (LG) modes, which form a complete basis set; hence multi-mode masks can be created by taking a linear combination of the LG modes. Since LG modes are characterised by two degrees of freedom, the azimuthal index ` and radial index , this allows for multi-dimensional states. There are however some experimental challenges which include the sensitivity of the setup to misalignment, that leads to mode-coupling. It is also important that the injected modes ha a uniform power spectrum so that are weighted equally. The size of the multi-modes is highly dependent on the resolution of the SLM. DA - 2014-10-02 DB - ResearchSpace DP - CSIR KW - Mode coupling KW - Multiplex KW - Spatial modes LK - https://researchspace.csir.co.za PY - 2014 T1 - Digital holograms for laser mode multiplexing TI - Digital holograms for laser mode multiplexing UR - http://hdl.handle.net/10204/7879 ER -