Impact of Inter-Core Loss and Gain Equalization on Transmission Performance in Multi-Core Systems

Rapp L, Beck B, Sandmann A, Schmauß B (2025)

Publication Type: Journal article

Publication year: 2025

Journal

IEEE Photonics Technology Letters Institute of Electrical and Electronics Engineers (IEEE)

DOI: 10.1109/LPT.2025.3562016

Abstract

Hybrid pumping schemes allow for equalizing transmission performance across the cores of a multi-core fiber based transmission system in the presence of fiber loss variations between the cores and core-dependent gain of the involved multi-mode pumped optical amplifiers. Power equalization by distributed Raman amplification comes with improved noise characteristics, but leads to reduced signal-to-interference ratio due to increased crosstalk. In an experimental setup, compensating loss in the outer cores of a 50km long trench-assisted 7-core fiber with this approach is shown to lead to an optical signal-to-noise ratio (OSNR) penalty increase by around 30% in the center core.

Authors with CRIS profile

Benedikt Beck Lehrstuhl für Hochfrequenztechnik (LHFT) Bernhard Schmauß Professur für Hochfrequenztechnik mit dem Schwerpunkt Optische Hochfrequenztechnik und Photonik

Involved external institutions

Adtran Networks DE Germany (DE)

How to cite

APA:

Rapp, L., Beck, B., Sandmann, A., & Schmauß, B. (2025). Impact of Inter-Core Loss and Gain Equalization on Transmission Performance in Multi-Core Systems. IEEE Photonics Technology Letters. https://doi.org/10.1109/LPT.2025.3562016

MLA:

Rapp, Lutz, et al. "Impact of Inter-Core Loss and Gain Equalization on Transmission Performance in Multi-Core Systems." IEEE Photonics Technology Letters (2025).

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