A PRODUCT-CODED WDM CODING SYSTEM

Forward error correction is a feasible approach to decline the bit err or floor of lightwave systems, arising from the fact that a simple sin gle-error-correcting code can reduce the error floor from O(P-e) to O( P-e(2)). Here we propose a novel wavelength demultiplexer (WDM) coding system using product code to improve performances of WDM systems with an error floor caused by fiber dispersion or system noises.