Nonstandard Variational Method for Calculating Attenuation in Optical Fibers

摘要

In the report, attenuation in optical fibers due to material losses is calculated using a nonstandard variational method. The method makes use of longitudinal fields and stationary functionals for open lossy waveguides. A new variational functional is derived for a general anisotropic lossy and open waveguide. Using the functional attenuation is calculated in round step-index optical fibers with various complex refraction index profiles.