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ELOS 2021

Dror Malka

Dror Malka, Speaker at Dror Malka: Speaker for Optics Conference
Holon Institute of Technology (HIT), Israel
Title : RGB port demultiplexer using polycarbonate core polymer optical fiber technolgy


Wavelength division multiplexing (WDM) is a great solution for increasing data bitrate communication of multicore polymer optical fiber (MC-POF) system. However, this solution requires adding more optical devices to the system which can limit its performance. To solve this issue, we propose a new design for an RGB channel based on polycarbonate (PC) MC-POF structure.  The new structure is based on replacing seven air-holes areas with PC layers over the fiber length which enables controlling the light propagation direction between the pc layers. The locations of the PC layers and the key geometrical parameters of the MC-POF were analyzed utilizing the beam propagation method. Results show that an RGB demultiplexer can be obtained over a light propagation of 20 mm with a good crosstalk of -19.436 to -26.474 dB, low losses of 0.901 to 1.246 dB and a large bandwidth of 5.6 to 11.3 nm. By analysis the results, it is clear that the main advance is that the new design does not require additional devices in order to function as RGB demultiplexer. This advance can be utilized to design new and very compact VLC-WDM system that can be used to obtain better performances comparing to VLC-WDM system that used bulk components.


Dror Malka received his BSc and MSc degrees in electrical engineering from the Holon Institute of Technology (HIT) in 2008 and 2010, respectively, Israel. He has also completed a BSc degree in Applied Mathematics at HIT in 2008 and received his Ph.D. degree in electrical engineering from Bar-Ilan University (BIU) in 2015, Israel. Currently, he is a Senior Lecturer in the Faculty of Engineering at HiT. His major fields of research are nanophotonic, super-resolution, silicon photonics and fiber optics. He has published around 40 refereed journal papers, and 40 conference proceedings papers.