Optiwave OptiFiber

Optical fibers may consist of an arbitrary number of concentric layers of lossless materials, and graded index fibers can be approximated using a sequence of constant index layers. OptiFiber mode solvers find an exact solution based on matching boundary conditions at layer boundaries instead of relying on meshes to approximate the structure. These advanced mode solvers should be especially useful for multimode fiber calculations, where there are many modes in the spectrum. Another advantage of the meshless mode solver is the calculation of fields far from the fiber. Meshing introduces finite difference errors of a certain level, and fields weaker than the differencing error cannot be calculated. The meshless mode solvers, on the other hand, have the correct asymptotic behavior far from the fiber, and can calculate fields of magnitude 10-15 or less. OptiFiber allows users to decompose an