Residual dispersion equalization using correlation detection in Nyquist OTDM scheme

Abstract

Abstract:We propose a wavelength-dispersion equalizing scheme that counteracts the signal degradation caused by residual dispersion in Nyquist optical time-division multiplexing. To counteract the signal degradation, this scheme uses optical correlation receivers and a distorted reference signal. At a Q factor of 6.4 dB, the permissible values of the residual dispersion increased from 14.5 ps/nm to 99.5 ps/nm at a baud rate of 160 GBd. Keywords: OTDM, residual dispersion, correlation detection Classification: Fiber-Optic Transmission for Communications[1] M. Nakazawa, T. Hirooka, P. Ruan and P. Guan, "Ultrahigh-speed "orthogonal" TDM transmission with an optical Nyquist pulse train, " Optics Express, vol. 20, no. 2, pp. 1129-1140, Jan. 2012. DOI:10.1364 [2] F. Ito, "Demultiplexed detection of ultrafast optical signal using interferometric cross-correlation technique,"