Frontiers of Optoelectronics, Volume. 6, Issue 1, 102(2013)
Impact of Rayleigh backscattering on single/dual feeder fiber WDM-PON architectures based on array waveguide gratings
The performance of colorless wavelengthdivision multiplexing passive optical network (WDMPON) 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.
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Muhammad Idrees AFRIDI, Jie ZHANG, Yousaf KHAN, Jiawei HAN, Aftab HUSSEIN, Shahab AHMAD. Impact of Rayleigh backscattering on single/dual feeder fiber WDM-PON architectures based on array waveguide gratings[J]. Frontiers of Optoelectronics, 2013, 6(1): 102
Category: RESEARCH ARTICLE
Received: May. 25, 2012
Accepted: Jul. 8, 2012
Published Online: Apr. 15, 2013
The Author Email: AFRIDI Muhammad Idrees (midreesafridi@gmail.com)