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Optical datacommunication links are under active consideration at rates beyond 40 Gb/s, especially at 100 Gb/s. The development of solutions that are compatible with constraints such as low-bandwidth optical sources requires advanced modulation formats. This talk will concentrate on hybrid schemes, for example combining conventional PAM modulation with an orthogonal channel taken from a CAP system...
We demonstrate for the first time the feasibility of a 32×32 MZI-SOA hybrid switch by means of a re-circulating loop. A power penalty of less than 2.9dB at a data rate of 10Gb/s is obtained.
A 1 Gbps 105.4 GHz wireless link is demonstrated by directly modulating a photonic integrated dual-laser source. A 50 m link is predicted to be able to achieve error free operation using FEC following optimisation.
Optical datacommunication links are now required at rates beyond 40 Gb/s. Achieving robust low-cost transmission at these rates necessitates consideration of advanced modulation formats. This paper concentrates on schemes using multiple orthogonal pulses and outlines the advantages relative to alternatives such as multilevel modulation. Recent real-time experimental results at 56 Gb/s are described.
For the first time, simulations have been performed to evaluate and compare the link power budget and power dissipation of 100 Gb/s carrierless amplitude and phase modulation-16/64 (CAP-16/64) and 16/64-quadrature amplitude modulation-orthogonal frequency division multiplexing (16/64-QAM-OFDM) systems over feedforward error correction (FEC) enhanced single mode fiber (SMF) links using an 18.6 GHz...
We propose an uncooled DWDM system where errors from uncontrolled laser mode-hopping are avoided by using a control protocol based on monitoring SMSR. We describe a proof-of-principle demonstration of a novel uncooled 50GHz DWDM system.
4 bps/Hz 40 Gb/s carrierless amplitude and phase (CAP) modulation is investigated for next-generation datacommunication links. The 40 Gb/s link achieves double the length of a conventional NRZ scheme, despite using a low-bandwidth source.
Carrierless amplitude and phase modulation for next-generation datacommunication links is considered for the first time. Low-cost implementation of a high-spectral-efficiency 10 Gb/s channel is demonstrated as a route to links at 40 Gb/s and beyond.
We demonstrate multi-channel RZ signal regeneration based on a phase-modulator and an AWG. BER improvements for 8 10 Gb/s channels after 450 km transmission demonstrate that regeneration with timing jitter reduction and dispersion compensation can be achieved.
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