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We demonstrate the data transmission of 10 Gbit/s on-off keying modulated 1550 nm signal through a long-range dielectric-loaded surface plasmon polariton waveguide structure with negligible signal degradation. In the experiment the bit error rate penalties do not exceed 0.6 dB over the 15 nm wavelength range and received optical power between -7 and 3 dBm.

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With the advent of novel elastic optical transponders allowing for fine rate granularity, network designers can maximize the throughput of current installed and future wavelength-division multiplexing (WDM) infrastructures. In this sense, data flow can be properly optimized for each optical connection, while avoiding unnecessary margins. Such a connection mode of operation should rely on a simple mechanism. This paper illustrates how a SNR-driven self-optimization of optical connections is relevant for elastic WDM networks, especially when associated with probabilistic constellation shaping, allowing rate tunability while maximizing spectral efficiency. In addition, we study a WDM North American backbone network to quantify the savings brought by this self-optimization in terms of transponder equipment for 10 years, as compared to conventional planning usually relying upon “end of life” assumptions.