Mr. Paolo Carniello Profile

Paolo Carniello

at Technische Univ. München

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Proceedings Article | 20 June 2024 Presentation

Characterization and modelling of multimode fibers using holographic transmission matrix measurements

Dennis Pohle, P. Carniello, N. Hanik, J. Czarske

Proceedings Volume PC13001, PC130010E (2024) https://doi.org/10.1117/12.3016631

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In the last few decades, interest in multimode optical fibers has been aroused for a wide range of applications in sensing, imaging and communication. In this work, the spatial domain of multimode fibers is examined, increasing both, the data rate and data security. In a first step, modes of the MMF are shaped by a spatial light modulator and coupled into the fiber. Camera-based intensity measurement is used to examine the modes supported by the fiber towards space division multiplexing (SDM). The obtained modes are restarted and the modal scrambling within the MMF is measured using digital holography. To investigate the optical setup’s coupling conditions, both the signal propagating through the MMF, including modal scrambling, and the internal portion reflected back from the output facet and propagating back to the transmitter side are measured through transmission matrix technology.

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