Title :
Feasibility study of 0.8-b/s/Hz spectral efficiency at 160 Gb/s using phase-correlated RZ signals with vestigial sideband filtering
Author :
Su, Yikai ; Moller, L. ; Ryf, Roland ; Xie, Chongjin ; Liu, Xiang
Author_Institution :
State Key Lab. of Fiber-Opt. Local Area Networks & Adv. Opt. Commun. Syst., Shanghai Jiao Tong Univ., China
fDate :
5/1/2004 12:00:00 AM
Abstract :
We study the feasibility of achieving 0.8-b/s/Hz spectral efficiency at 160 Gb/s. We generate phase-correlated return-to-zero (RZ) signals by utilizing the Kerr shutter effect in a highly nonlinear fiber. The 160-Gb/s RZ signal is then filtered with a 200-GHz bandwidth filter. Error-free operation is obtained by properly shifting the central wavelength of the filter. We also investigate the filtering performance of phase-uncorrelated signals generated by conventional optical time-division multiplexing means.
Keywords :
band-pass filters; optical Kerr effect; optical communication equipment; optical filters; phase coding; spectral analysis; time division multiplexing; 160 Gbit/s; 200 GHz; Kerr shutter effect; central wavelength shifting; highly nonlinear fiber; optical time-division multiplexing; phase-correlated RZ signals; return-to-zero signals; spectral efficiency; vestigial sideband filtering; Fiber nonlinear optics; Filtering; High speed optical techniques; Nonlinear optics; Optical crosstalk; Optical fiber filters; Optical fiber polarization; Optical filters; Probes; Signal generators;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2004.826153
