320 Gbit/s clock recovery with electro-optical PLL using a bidirectionally operated electroabsorption modulator as phase comparator

Abstract
A 40 GHz clock signal is recovered from a single-polarisation 320 Gbit/s data signal using a bidirectionally operated electroabsorption modulator (EAM) as phase comparator. The clock recovery was operated in a single-polarisation 320 Gbit/s, 160 km transmission experiment.