Article | REF: E3680 V3

Electrical and optical link performances comparison

Author: Mathias PEZ

Publication date: November 10, 2025 | Lire en français

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    2. Guided transmissions

    In the field of optics, unlike in the field of electricity, there are several modes of propagation in the waveguide, depending on its dimensions [E 3 652] :

    • When the section of the waveguide is of the order of a few wavelengths, it is referred to as a single-mode waveguide.

    • When the cross-section is much larger than the wavelength, it is referred to as a multimode waveguide.

    As we have already shown, single-mode optics offer the best performance in terms of bandwidth and linear attenuation,...

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