Title :
Signal re-modulation with high extinction ratio 10-Gbit/s IRZ signal for DWDM-PONs
Author :
Zhang, Jinnan ; Yuan, Xueguang ; Ren, Xiaomin ; Huang, Yongqing ; Zhang, Minglun
Author_Institution :
Key Lab. of Opt. Commun. & Lightwave Technol., Beijing Univ. of Posts & Telecommun., Beijing
fDate :
March 30 2009-April 1 2009
Abstract :
We propose and demonstrate a novel re-modulation scheme using inverse-return-to-zero (IRZ) signal for downstream data and differential phase shift keying (DPSK) signal for upstream data with high extinction-ratio in both directions. A 20-km-range colorless dense wavelength-division-multiplexing passive optical network (DWDM-PON) without dispersion compensation was demonstrated within 1-dB penalty for both 10-Gbit/s downstream and 10-Gbit/s upstream signals. The impact of the relative delay between the upstream signal and the downstream signal was investigated. The comparison with the previously proposed re-modulation scheme shows that our scheme is a practical solution to meet the data rate and cost-efficient of the optical links simultaneously in tomorrow´s DWDM-PON access networks.
Keywords :
differential phase shift keying; optical fibre networks; optical modulation; wavelength division multiplexing; DWDM-PONs; IRZ signal; access networks; dense wavelength-division-multiplexing passive optical network; differential phase shift keying signal; inverse-return-to-zero signal; optical links; signal remodulation; Differential quadrature phase shift keying; Erbium; Extinction ratio; High speed optical techniques; Optical modulation; Optical network units; Optical signal processing; Optical transmitters; Passive optical networks; Signal processing; DPSK; DWDM-PON; IRZ; extinction ratio; optical re-modulation;
Conference_Titel :
Sarnoff Symposium, 2009. SARNOFF '09. IEEE
Conference_Location :
Princeton, NJ
Print_ISBN :
978-1-4244-3381-0
Electronic_ISBN :
978-1-4244-3382-7
DOI :
10.1109/SARNOF.2009.4850307
