International Journal of Computer Applications |
Foundation of Computer Science (FCS), NY, USA |
Volume 49 - Number 22 |
Year of Publication: 2012 |
Authors: Raja Roy Choudhury, Arundhati Roy Choudhury, Mrinal Kanti Ghose |
10.5120/7907-1293 |
Raja Roy Choudhury, Arundhati Roy Choudhury, Mrinal Kanti Ghose . Improved Semi Analytical Model of Effective Area for a Step and Parabolic–Index Optical Fiber: Introduction of Increased Parameters in Fundamental Modal Field. International Journal of Computer Applications. 49, 22 ( July 2012), 45-50. DOI=10.5120/7907-1293
An accurate three parameter approximate solution of fundamental mode, to describe different propagation parameter of graded-index optical fiber has been presented. Due to three parameter optimization of the fundamental modal solution, the results are much more accurate for a wide range of optical fiber specifications. Employing variational technique, an estimation of effective area and effective index with proposed fundamental modal field are carried out. It has been shown that the results match identically with the exact available results for step and parabolic refractive index profile optical fiber. The accurate analytical expressions for the evaluation of effective area and effective index are formulated. Optimization of three parameters has been carried out for a wide range of normalized frequencies. Data for these parameters are also provided, which can be used directly while calculating different design parameters of an optical fiber.