Entirely Passive Remote Node Design And System Architecture For Bus Topology Based 80Gbps Symmetrical NG-PON2

Abstract

The next generation passive optical network stage 2 (NG-PON2) is a broadcast network in which a large number of optical network units (ONUs) can be served using various network topologies. In this paper, a purely passive remote node (RN) design based on fiber bragg grating (FBG) is presented for the bus topology of a high split NG-PON2 system. The performance of the proposed node has been analysed for a symmetric 80 Gbps NG-PON2 system serving 1024 ONUs in terms of bit error rate (BER) and optical signal to noise ratio (OSNR). The working of the proposed node has been explained with the optical frequency spectrums for downstream and upstream signals. The observed OSNR levels for the ONUs operating at the 1st RN is 84.8743dB which decreases to 75.7973dB for the ONUs connected to the 8th RN. The BER level < 10-9 for both upstream and downstream confirms the correct working of the proposed node in the NG-PON2 system.

An Efficient Algorithm for Reliability Evaluation of the Bus Network

“…Yan et al [26] presented a startup algorithm for the time-triggered architecture (TTA) with the bus topology and discussed the temporal boundary for the system of arbitrary number of nodes that integrates the proposed algorithm by using formal derivation. Kaur et al [27] designed a completely passive remote node (RN) based on fiber bragg grating (FBG) for the high split NG-PON2 system based on the bus topology and analyzed two performance indicators of the proposed node, namely the bit error rate (BER) and optical signal to noise ratio (OSNR). Sundaram et al [28] designed the bus topology by applying a novel linear algebraic theory.…”