Improvement of dispersion tolerance for electrical-binary-signal-based duobinary transmitters

Abstract

We present a way to improve the dispersion tolerance of an electrical-binary-signal-based duobinary transmitter, implemented by using a dual-arm Mach-Zehnder modulator driven with two complementary binary signals. Successful transmission over 200 km of single-mode fiber is achieved by optimizing the relative time delay between the binary signals and the driving voltage. (C) 2005 Optical Society of America