Interaction Between Electromagnetic Field and Optical Signal Transmission in Fiber Optics

摘要

The need for broadcasting information is determined by the up-to-date progress, since the electronic communication is now changing from passive modes (reviewing the internet home pages, sending e-mails, etc.) to active ones (video-conferences, activities in virtual environment, etc). The increasing need to access information generates progress of wide development in the field of fiber optics communication systems, especially wavelength division multiplexing (WDM). WDM provides transmission of high bitrate optical signals and dense optical channel spacing to increase the data transmission capacity [1]. The area of electromagnetic (EM) field influence to FOTS has not been widely studied. Main reason is that for data transmission speeds used in optical fibers nowdays there are no indication of EM influence. But we propose that EM interference with optical radiation could become a limiting factor for much higher data transmission speeds. Therefore the aim of this research is to evaluate external EM field influence to fiber optics WDM transmission system with standard data transmission speed per channel 10.52, 12.5 and 40.0 Gbps and two different modulation formats: amplitude and polarization state modulation. This is done by performing calculations using simulation software OptSim 5.2 that is developed by RSoft Design Group, Inc.