Title :
Performance Analysis of CSRZ-OOK With Pairwise or Pulse-to-Pulse Alternate Polarization
Author :
Fischer, Johannes K. ; Petermann, Klaus
Author_Institution :
Tech. Univ. Berlin, Berlin
Abstract :
The performance of 40-Gb/s carrier-suppressed return-to-zero on-off keying (CSRZ-OOK) combined with either a pairwise or a pulse-to-pulse alternate polarization (APol) is investigated numerically. It is shown that these modulation formats offer a superior suppression of intrachannel four-wave mixing compared to conventional APol-formats. They are also tolerant to narrowband optical filtering and thus suitable for ultradense wavelength-division multiplexing (WDM) systems with a spectral efficiency of 0.8 bit/s/Hz.
Keywords :
multiwave mixing; optical filters; optical modulation; optical transmitters; wavelength division multiplexing; bit rate 40 Gbit/s; carrier-suppressed return-to-zero on-off keying; intrachannel four-wave mixing suppression; modulation formats; narrowband optical filtering; pairwise alternate polarization; pulse-to-pulse alternate polarization; spectral efficiency; transmittter; ultradense wavelength-division multiplexing; Four-wave mixing; Modulation; Narrowband; Nonlinear optics; Optical filters; Optical mixing; Optical polarization; Optical pulses; Performance analysis; Wavelength division multiplexing; Carrier-suppressed return-to-zero (CSRZ); intrachannel four-wave mixing (IFWM); modulation; polarization;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2007.908431
