In the past few years, the demand for transmission data rates has increased considerably. In order to cater to the digital data needs of the people, there is a rising need for transferring more information in a shorter time span. This situation is being addressed by the use of optical fiber as a transmission medium, so as to provide higher bandwidth and higher transmission speeds.
Although the bandwidth of optical fiber offers a great advantage, there are problems with effectiveness in efficiently using the entire bandwidth. This deficiency is being solved by the usage of WDM technology that allows transmission of multiple optical signals on a single optical fiber by operating on different wavelengths. WDM technology has become very popular and widely used these days, owing to the simplicity of the implementation of the pre-built network. Once the fibers are installed, instead of rebuilding the entire network, you only need to upgrade the existing transmission systems. Among the current known WDM technologies, developers made use of DWDM (Dense Wavelength Division Multiplexing) and CWDM (Coarse Wavelength Division Multiplexing) technologies.
The main goal of this work is to present the influence of nonlinear effects in an optical fiber. Nonlinear effects play a major role in the field of degradation mechanisms. Through experiments, it is possible to see simulated Raman scattering of optical fibers in the presence and absence of nonlinear effects. However, Raman scattering effect may not only have negative characteristics in a particular bandwidth but across the entire bandwidth. Simulation experiments were created using the ‘OptSim’ programming tool. The different observed parameters were bit error rate (BER), the maximum distance of optical fiber and the values of output power.
The theme of optical fibers was one of my prime fields in my earlier days. Right now, our research team is focused on nonlinear effects and investigation on degradation mechanisms in the optical fibers.
Comments
Post a Comment