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Updated: May 21, 2026

Transmission of Multiple Signals through an Optical Fiber Using Wavefront Shaping
Published on: March 20, 2017
Perspectives of principal mode transmission in mode-division-multiplex operation
Adrian A Juarez1, Christian A Bunge, Stefan Warm
1Technische Universität Berlin, Strasse des 17. Juni 135, 10623 Berlin, Germany. adrian.juarez@tu-berlin.de
Abstract:
We investigate the concept of principal modes and its application for mode division multiplexing in multimode fibers. We start by generalizing the formalism of the principal modes as to include mode dependent loss and show that principal modes overcome modal dispersion induced by modal coupling in mode division multiplexing operation, even for multi-mode-fibers guiding a large number of modes, if the product of modulation bandwidth, fiber length and differential group delay is equal or less than one in each transmission channel. If this condition is not sustained, modal dispersion and crosstalk at the receiver limit the transmission performance, setting very high constraints towards modal coupling.
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