IEEE Journal of Selected Topics in Quantum Electronics, 1997
AbstractUltrafast all-optical signal processing techniques are expected to play a major role in ... more AbstractUltrafast all-optical signal processing techniques are expected to play a major role in future ultrafast single-carrier soliton systems, because they remove the electronics bottleneck. In this paper, two all-optical devices, the nonlinear optical loop mirror (NOLM) ...
We report the transmission of 155 channels with 100Gbit/s PDM-QPSK modulation over 7200km of pure... more We report the transmission of 155 channels with 100Gbit/s PDM-QPSK modulation over 7200km of pure silica core fibre, exploiting hybrid Raman-EDFA amplification and digital coherent detection. A record 112Petabit/s·km capacity×distance product is demonstrated.
Vestigial sideband filtering with high crosstalk suppression is demonstrated as optical demux of ... more Vestigial sideband filtering with high crosstalk suppression is demonstrated as optical demux of densely packed 40 Gb/s channels with high spectral efficiency of 0.64 bit/s/Hz. Narrow band optical filters have been applied for separation of 128/spl times/40 Gbit/s channels with alternating spacings of 50 and 75 GHz.
Coherent transmission systems using PDM-QPSK format are found particularly robust to the constrai... more Coherent transmission systems using PDM-QPSK format are found particularly robust to the constraints of all-erbium amplifiers based, transparent terrestrial networks when operating at 100 Gb/s channel rate.
We report the transmission of a record 6 Tbit/s capacity over 6,120 km distance, involving channe... more We report the transmission of a record 6 Tbit/s capacity over 6,120 km distance, involving channels modulated at 42.7 Gb/s bit-rate with differential phase-shift keying (DPSK). The performance is found similar to DPSK with subsequent pulse carving, namely RZ-DPSK.
IEEE Journal of Selected Topics in Quantum Electronics, 1997
AbstractUltrafast all-optical signal processing techniques are expected to play a major role in ... more AbstractUltrafast all-optical signal processing techniques are expected to play a major role in future ultrafast single-carrier soliton systems, because they remove the electronics bottleneck. In this paper, two all-optical devices, the nonlinear optical loop mirror (NOLM) ...
We report the transmission of 155 channels with 100Gbit/s PDM-QPSK modulation over 7200km of pure... more We report the transmission of 155 channels with 100Gbit/s PDM-QPSK modulation over 7200km of pure silica core fibre, exploiting hybrid Raman-EDFA amplification and digital coherent detection. A record 112Petabit/s·km capacity×distance product is demonstrated.
Vestigial sideband filtering with high crosstalk suppression is demonstrated as optical demux of ... more Vestigial sideband filtering with high crosstalk suppression is demonstrated as optical demux of densely packed 40 Gb/s channels with high spectral efficiency of 0.64 bit/s/Hz. Narrow band optical filters have been applied for separation of 128/spl times/40 Gbit/s channels with alternating spacings of 50 and 75 GHz.
Coherent transmission systems using PDM-QPSK format are found particularly robust to the constrai... more Coherent transmission systems using PDM-QPSK format are found particularly robust to the constraints of all-erbium amplifiers based, transparent terrestrial networks when operating at 100 Gb/s channel rate.
We report the transmission of a record 6 Tbit/s capacity over 6,120 km distance, involving channe... more We report the transmission of a record 6 Tbit/s capacity over 6,120 km distance, involving channels modulated at 42.7 Gb/s bit-rate with differential phase-shift keying (DPSK). The performance is found similar to DPSK with subsequent pulse carving, namely RZ-DPSK.
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