Experimental comparison of nonlinear compensation in long-haul PDM-QPSK transmission at 42.7 and 85.4 Gb/s

Abstract

We compare the nonlinear limits of 42.7 and 85.4 Gb/s PDM-QPSK transmission. Intra-channel nonlinearity compensation is demonstrated, with increase of optimum launch power by 1dB in each case and corresponding increase in maximum reach to 11635km and 8100km, respectively. © VDE VERLAG GMBH