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OFDM data with line rates of 5.4 Tbit/s or 10.8 Tbit/s are generated and decoded with a new real-time all-optical FFT receiver. Each of 75 carriers of a comb source is encoded with 18 GBd QPSK or 16-QAM.
We experimentally demonstrate the use of saw-tooth control pulses to enhance the performance of time-domain add-drop multiplexers based on cross-phase modulation in fibre and subsequent offset filtering.
We demonstrate a regenerative optical grooming switch for interconnecting 130 Gbit/s and 40 Gbit/s networks with switching functionality in time, space and wavelength domain. Q-factors are above 21 dB.
We report the first demonstration of OTDM-to-WDM conversion from 130 Gbit/s simultaneously to 3 times 43 Gbit/s WDM channels in a nonlinear optical loop mirror (NOLM). The scheme is exploiting the ultra-fast Kerr based XPM in a NOLM and gives full flexibility for selecting the output WDM channel wavelengths. For the success of the experiment we rely crucially on a new specially designed highly nonlinear...
We report a reconfigurable 16-channel OCDMA/DWDM system (40CDMAx4DWDMx625Mbit/s) based on novel 31-chip, 40 Gchip/s quaternary phase coding gratings operating at a channel spacing of just 50GHz. Error free performance is achieved for all channels.
We demonstrate a technique to suppress multi-access interference in an OCDMA system by using the nonlinear process of two-photon absorption. This allows the extinction ratio to be improved by 5 dB when compared to linear detection.
Summary form only given. The talk will introduce the activities of the IST EU FP6 STREP project TRIUMPH (transparent ring interconnection using multi-wavelength photonic switches). It will focus on the use of advanced optical signal regeneration subsystems that enable novel optical networking concepts such as transparent ring interconnection at high bit rates (up to 160 Gb/s). The presentation will...
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