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The Future of Optical Communications

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Handbook of Radio and Optical Networks Convergence

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Abstract

Optical fiber communications systems have experienced a tremendous development over the past decades, enabling a steady exponential increase of data rates over short and long distances. Over the last 10 years, it became clear that using current fibers and/or spectral transmission bands won’t support a significant further increase. After introducing single-mode fiber-based optical transmission systems and the technological evolution that enabled current transmission systems, this chapter gives an overview on two distinct ongoing research directions for a drastic increase of data rates: (1) to further push the data rates limits in current single-mode fibers and (2) to explore a new multiplexing dimension, the spatial dimension of optical fibers to drastically increase the per-fiber data rates. The former topic focuses on approaches to increase the spectral efficiency and hence the amount of data that can be transported in a given bandwidth as well as adding further spectral bands where single-mode fibers guide at low loss. This approach is particularly interesting when maximizing data rates in existent fiber infrastructure. The second part describes novel optical fibers such as few-mode and multi-core fibers and related space-division multiplexing technologies that have been demonstrated to offer a strong per-fiber capacity increase of 2 orders of magnitude.

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Authors and Affiliations

  1. Institute of Electrical and Optical Communications, University of Stuttgart, Stuttgart, Germany

    Georg Rademacher

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  1. Georg Rademacher
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Correspondence to Georg Rademacher .

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Editors and Affiliations

  1. Faculty of Science and Engineering, Waseda University, Shinjuku, Tokyo, Japan

    Tetsuya Kawanishi

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  1. NICT, Tokyo, Japan

    Ben Puttnam

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Rademacher, G. (2024). The Future of Optical Communications. In: Kawanishi, T. (eds) Handbook of Radio and Optical Networks Convergence. Springer, Singapore. https://doi.org/10.1007/978-981-97-2282-2_22

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