Abstract
A novel all-optical 3R regenerator operated in the optically clocked scheme (OC-3R) is presented. The regenerator basically comprises two semiconductor components: an ultra-long semiconductor optical amplifier (UL-SOA) for effective use of fast nonlinearities and a self-pulsating PhaseCOMB-laser for all-optical clock recovery. The dynamic behaviour of the key devices is investigated theoretically and experimentally. An excellent regenerative performance of the assembled OC-3R is demonstrated by eye analysis and by bit error rate (BER) measurements at 40 Gbit/s.
Highlights
In future high-speed global optical networks the data signals will be transparently switched through the nodes without additional opto-electronic conversion
The re-timing function is performed by the clock signal, which is recovered from the pseudo random bit sequence (PRBS) data signal
In this paper we present a novel regenerator scheme that is based on only two compact semiconductor devices: a 4 mm ultra-long semiconductor optical amplifier (UL-SOA) for effective exploitation of fast non-linearities and a self-pulsating DFB laser (PhaseCOMB) for all-optical clock recovery
Summary
A novel all-optical 3R regenerator operated in the optically clocked scheme (OC-3R) is presented. The regenerator basically comprises two semiconductor components: an ultra-long semiconductor optical amplifier (UL-SOA) for effective use of fast nonlinearities and a self-pulsating PhaseCOMB-laser for all-optical clock recovery. The dynamic behaviour of the key devices is investigated theoretically and experimentally. An excellent regenerative performance of the assembled OC-3R is demonstrated by eye analysis and by bit error rate (BER) measurements at 40 Gbit/s
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