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Asymmetric 160/80 Gbps TWDM PON utilizing dispersion compensation technique

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Abstract

The development of time wavelength division multiplexing passive optical networks (TWDM-PONs) currently has the acquisition of capacity in a cost-effective manner as its primary goal. In response to this issue, this work uses physical layer modeling to demonstrate a full-system TWDM-PON that provides asymmetric 160/80 Gbps downstream/upstream bandwidths, which fulfills the requirements of the International Telecommunication Union-Telecommunication Standardization Sector (ITU-T)-based OptiSystem-7 software. A fiber Bragg grating (FBG) is used as a dispersion compensator in the receiver sector for the optical line terminal (OLT) and optical network unit (ONU) to reduce the effect of linear chromatic dispersion until given permission to enhance the distance communication system. The proposed system's performance is evaluated and compared with other works to demonstrate how the system can be enhanced in terms of capacity and link distance, and it is evaluated in the downstream and upstream directions for various transmission distances and received optical power with regard to bit error rate (BER), Q-factor, eye diagrams, power budget (PB), and receiver sensitivity. According to the results, the optimum possible distance under communication requirements (6 for the Q-factor and 1E-9 for the BER) is around 40 km for the system without dispersion management and 65 km for the system with dispersion management, which represents an enhancement of about 62.5% or 25 km (from 40 km up to 65 km) for a system with FBG that may support a splitting ratio of 1:256.

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Authors and Affiliations

  1. Laser Engineering Branch, Laser and Optoelectronics Department, University of Technology, Baghdad, Iraq

    Essam N. Abdulla & A. K. Abass

  2. Department of Electrical Engineering, College Engineering- Shirqat, Tikrit University, Baghdad, Iraq

    Ayad A. Abdulkafi

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  1. Essam N. Abdulla
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  2. A. K. Abass
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  3. Ayad A. Abdulkafi
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Correspondence to A. K. Abass.

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Abdulla, E.N., Abass, A.K. & Abdulkafi, A.A. Asymmetric 160/80 Gbps TWDM PON utilizing dispersion compensation technique. J Opt 52, 1683–1693 (2023). https://doi.org/10.1007/s12596-022-00991-0

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