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Frontiers of Optoelectronics

Front Optoelec    2013, Vol. 6 Issue (1) : 102-107     DOI: 10.1007/s12200-012-0276-8
RESEARCH ARTICLE |
Impact of Rayleigh backscattering on single/dual feeder fiber WDM-PON architectures based on array waveguide gratings
Muhammad Idrees AFRIDI(), Jie ZHANG, Yousaf KHAN, Jiawei HAN, Aftab HUSSEIN, Shahab AHMAD
State Key Laboratory of Information Photonics and Optical Communications, Beijing University of Posts and Telecommunications, Beijing 100876, China
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Abstract

The performance of colorless wavelength-division multiplexing passive optical network (WDM-PON) systems suffers from transmission impairments due to Rayleigh backscattering (RB). A single feeder fiber colorless WDM-PON architecture was modeled, simulated and analyzed at 25 km distance that sustained the noise induced by RB. We analytically compared the performances between single feeder and dual feeder WDM-PON architectures based on array waveguide gratings (AWGs). For single feeder WDM-PON, the high extinction ratios in both return-to-zeros (RZ)-shaped differential phase shift keying (DPSK) downstream and intensity remodulated upstream data signals helped to increase the tolerance to the noise induced by RB. However, a cost effective colorless system in dual feeder WDM-PON architecture was achieved without any optical amplification and dispersion compensation, low power penalty. These results illustrate that single feeder fiber architecture was cost effective in terms of deployment having a power penalty, while dual feeder fiber had lower power penalty thereby with better performance. Simulation results show that downstream and upstream signals achieved error-free performance at 10-Gbps with negligible penalty and enhanced tolerance to the noise induced by RB over 25 km single mode fiber.

Keywords wavelength division multiplexed-passive optical network (WDM-PON)      Rayleigh backscattering (RB)      differential phase shift keying (DPSK)      arrayed waveguide grating (AWG)     
Corresponding Authors: AFRIDI Muhammad Idrees,Email:midreesafridi@gmail.com   
Issue Date: 05 March 2013
 Cite this article:   
Muhammad Idrees AFRIDI,Jie ZHANG,Yousaf KHAN, et al. Impact of Rayleigh backscattering on single/dual feeder fiber WDM-PON architectures based on array waveguide gratings[J]. Front Optoelec, 2013, 6(1): 102-107.
 URL:  
http://journal.hep.com.cn/foe/EN/10.1007/s12200-012-0276-8
http://journal.hep.com.cn/foe/EN/Y2013/V6/I1/102
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Muhammad Idrees AFRIDI
Jie ZHANG
Yousaf KHAN
Jiawei HAN
Aftab HUSSEIN
Shahab AHMAD
Fig.1  Path of two back reflection lights in conventional one fiber WDM-PON systems
Fig.1  Path of two back reflection lights in conventional one fiber WDM-PON systems
Fig.1  Path of two back reflection lights in conventional one fiber WDM-PON systems
Fig.1  Path of two back reflection lights in conventional one fiber WDM-PON systems
Fig.2  Schematic diagram of dual fiber AWG WDM-PON system
Fig.2  Schematic diagram of dual fiber AWG WDM-PON system
Fig.2  Schematic diagram of dual fiber AWG WDM-PON system
Fig.2  Schematic diagram of dual fiber AWG WDM-PON system
Fig.3  Schematic diagram of single fiber AWG WDM-PON system
Fig.3  Schematic diagram of single fiber AWG WDM-PON system
Fig.3  Schematic diagram of single fiber AWG WDM-PON system
Fig.3  Schematic diagram of single fiber AWG WDM-PON system
parametersvalues
dispersion parameter of SMFdispersion slope of SMFattenuation coefficient of SMFeffective core area of SMFnon linear index-coefficient of SMFresponsivity of photo detectordark current of photo detector17 ps/nm/km0.075 ps/nm2/km0.2 dB/km80 μm22.6 ′10-201 A/W10 nA
Tab.1  Simulation parameters
Fig.4  BER graph for downlink and uplink of dual feeder WDM-PON
Fig.4  BER graph for downlink and uplink of dual feeder WDM-PON
Fig.4  BER graph for downlink and uplink of dual feeder WDM-PON
Fig.4  BER graph for downlink and uplink of dual feeder WDM-PON
Fig.5  BER graph for downlink and uplink of single feeder WDM-PON
Fig.5  BER graph for downlink and uplink of single feeder WDM-PON
Fig.5  BER graph for downlink and uplink of single feeder WDM-PON
Fig.5  BER graph for downlink and uplink of single feeder WDM-PON
Fig.6  Eye diagrams for (a) DPSK downlink and (b) OOK uplink for single fiber architecture
Fig.6  Eye diagrams for (a) DPSK downlink and (b) OOK uplink for single fiber architecture
Fig.6  Eye diagrams for (a) DPSK downlink and (b) OOK uplink for single fiber architecture
Fig.6  Eye diagrams for (a) DPSK downlink and (b) OOK uplink for single fiber architecture
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