Multimode Fiber Refractive Index Profile Considerations for Mode Group Diversity Multiplexing

摘要

Possibility of employing Mode Group Diversity Multiplexing (MGDM) to increase the information capacity of Multimode Fibers is investigated. Gaussian beam light launch method for excitation of non-overlapping mode groups is analyzed. Far field analysis for separation of mode groups at the fiber output is proposed. Numerical results, presented for both parabolic and step index multimode fibers, show that step index fiber is preferable in terms of MGDM system design.