Title :
Comparison between NRZ and duobinary Modulation at 43 gb/s for MLSI-based and DCF-based transmission systems
Author :
Jansen, Sander Lars ; Spälter, Stefan ; Weiske, Clans-Jörg ; Khoe, Giok-Djan ; De Waardt, Huug ; Sher, Mark ; Woll, Dirk ; Escobar, Hector E.
Author_Institution :
Commun. Technol. Basic Res. & Applic., Univ. of Technol., Eindhoven, Netherlands
Abstract :
In this paper, the performance of midlink spectral inversion (MLSI) is compared with the performance of "conventional" dispersion compensation fiber (DCF)-based transmission for two data formats: 43-Gb/s ON-OFF keying nonreturn-to-zero (OOK-NRZ) and 43-Gb/s duobinary. In the MLSI-based system, a polarization-diverse subsystem was used for spectral inversion employing magnesium-oxide-doped periodically poled lithium niobate (PPLN) waveguide technology. The transmission link consists of 8 × 100 km standard single-mode fiber (SSMF) using erbium-doped fiber amplifiers (EDFAs) for amplification. Compared to the DCF-based system, it is seen that the MLSI-based configuration enhances the dispersion tolerance for both the NRZ and the duobinary modulation formats. It is concluded that the combination of the MLSI and the duobinary modulation format yields a highly dispersion-tolerant stable 43-Gb/s transmission system.
Keywords :
amplitude shift keying; erbium; integrated optics; lithium compounds; magnesium compounds; optical fibre amplifiers; optical fibre communication; optical fibre dispersion; optical fibre polarisation; optical modulation; 100 km; 43 Gbit/s; 8 km; DCF-based transmission systems; Gb/s transmission system; MLSI-based transmission systems; NRZ; conventional dispersion compensation; data formats; dispersion tolerance; duobinary modulation; erbium-doped fiber amplifiers; fiber amplification; magnesium-oxide-doped periodically poled lithium niobate; midlink spectral inversion; nonreturn-to-zero data format; on-off keying; polarization-diverse subsystem; spectral inversion; standard single-mode fiber; waveguide technology; Fiber nonlinear optics; Lithium niobate; Nonlinear optics; Optical amplifiers; Optical fiber polarization; Optical filters; Optical modulation; Optical signal processing; Optical waveguides; Semiconductor optical amplifiers; Dispersion compensation; fiber-optic communications; midlink spectral inversion (MLSI); nonlinear transmission; phase conjugation; spectral inversion;
Journal_Title :
Lightwave Technology, Journal of
DOI :
10.1109/JLT.2005.861927
