Title :
A Novel DWDM-PON Utilizing Downstream IRZ Signal for Upstream Data Re-modulation with High Extinction Ratio
Author :
Zhang, Jinnan ; Yuan, Xueguang ; Ren, Xiaomin ; Huang, Yongqing ; Zhang, Yangan ; Zhang, Minglun
Author_Institution :
Key Lab. of Opt. Commun. & Light-wave Technol., Beijing Univ. of Posts & Telecommun., Beijing
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(ER) 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.
Keywords :
differential phase shift keying; optical fibre networks; optical modulation; wavelength division multiplexing; DPSK; bit rate 10 Gbit/s; differential phase shift keying signal; distance 20 km; downstream IRZ signal utilization; high extinction-ratio; inverse-return-to-zero signal; upstream data re-modulation; wavelength-division-multiplexing passive optical network; Arrayed waveguide gratings; Differential quadrature phase shift keying; Distributed feedback devices; Erbium; Extinction ratio; Optical feedback; Optical modulation; Optical network units; Optical transmitters; Passive optical networks; DPSK; DWDM-PON; IRZ; extinction ratio; optical re-modulation;
Conference_Titel :
Communication Networks and Services Research Conference, 2009. CNSR '09. Seventh Annual
Conference_Location :
Moncton, NB
Print_ISBN :
978-1-4244-4155-6
Electronic_ISBN :
978-0-7695-3649-1
DOI :
10.1109/CNSR.2009.76
