Benn C. Thomsen

TL;DR: In this paper, the performance of direct-detection transceivers employing electronic dispersion compensation combined with DSP-based receiver linearization techniques is assessed through experiments on a 4 × 112 Gb/s wavelength-division multiplexing direct detection single-sideband 16 quadratic-amplitude modulation Nyquist-subcarrier-modulation system operating at a net optical information spectral density of 2.8 b/s/Hz in transmission over standard single mode fiber links of up to 240 km.

TL;DR: In this article, a reconfigurable mode demultiplexer based around a liquid crystal spatial light modulator is demonstrated to share a propagation constant as separate modal channels using a single shared phase mask per polarization for all channels.

TL;DR: Effective nonlinearity mitigation is achieved using multi-channel digital back-propagation (MC-DBP) and this technique is combined with an optimised forward error correction implementation to demonstrate a record gain in transmission reach of 85; and a trade-off between performance and complexity is defined.

TL;DR: Sirius, an optically-switched network for datacenters providing the abstraction of a single, high-radix switch that can connect thousands of nodes---racks or servers---in a datacenter while achieving nanosecond-granularity reconfiguration, is proposed.

TL;DR: In this paper, the impact of local oscillator laser (LO) relative intensity noise (RIN) on receiver sensitivity is investigated theoretically and then experimentally by evaluating the sensitivity of a coherent receiver incorporating different tunable light sources; a low-RIN external cavity laser (ECL) and a monolithically integrated digital supermode distributed Bragg reflector (DS-DBR) laser.