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We propose and experimentally demonstrate an optical-TTL-based selective-3R regeneration scheme in an OLS testbed with fiber transmission. This scheme cognitively employs 3R when necessary. The experiment achieves burst mode clock recovery and error free operation.
We demonstrate an all-optical clock-and-data recovery technology for 10-Gb/s NRZ-DPSK signals. With a relatively simple configuration, the clock-recovery scheme achieves less than 1.5-ps RMS jitter for signals after fiber transmission. The pattern-dependence of data-recovery is within 0.5-dB at BER10-9.
We demonstrate field trial experiments to evaluate a 10-Gb/s optical 3R regenerator using fiber recirculation loops built with 264-km and 462-km SSMF fiber in field. Error-free transmission over 264,000-km with 1,000 optical 3R regeneration stages has been achieved. Experimental results indicate only 1.5-dB power penalty at BER 10-9 after 264,000-km.
This paper experimentally demonstrates the cascaded operation of an optical-label switching router for up to 101 hops, with optical label swapping, optical clock recovery, and 3R regeneration (re-amplification, reshaping, and retiming) at each hop. The optical label swapping utilizes all-optical payload/label separation and label rewriting with subcarrier label. An interferometer wavelength converter...
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