Impairment strained analytical modeling evaluation and cross-talk analysis of symmetric and coexistent channels for extended class-1 NG-PON2 access network

Abstract

The analytical modeling for linear and non-linear impairments (LNI) for single mode fiber (SMF) and simulative analysis of extended power budget class-1 i.e. E1-class of next generation passive optic network-2 (NG-PON2) is presented in the paper. The proposed power-budget class time and wavelength division multiplexing (TWDM) based NG-PON2 network configuration is delivering symmetric 2.5 point-to-multi point (PtM) representing time and TWDM XGS-PON along with 10 Gbps point-to-point (PtP) wavelength division multiplexing (WDM) symmetric and coexistent channels (Ch) in worst-case scenario. Channel modelling of LNI is carried out under the incremental and aggregate strain of estimated chromatic dispersion CD, self-phase modulation (SPM), cross-phase modulation (XPM) of single mode fiber (SMF) channel deployed in optical distributing network (ODN) between 20 and 50 km link lengths. Downlink (D/L) and uplink (U/L) ODN is optimized to PT ODN = 7.1 dBm and 4.09 dBm, respectively and corresponding channel imparities including Kerr parameter γ , corresponding SPM, XPM, CD, four-wave mixing (FWM) analysis and corresponding component power and efficiency, interchange crosstalk ( Cc ) attracting power penalties ( Pc ) are estimated and incorporated in the simulation for the real response of lossy SMF channel. Further, splitter power budget (SP) and slitter configuration for respective PtM and PtP D/L Ch are estimated under the aggregate impact of CD, SPM, XPM and FWM. Analytical modeling of LNI and simulative analysis has confirmed the configuration delivered rise in receiver sensitivity (Rxs) of − 39.75/− 33.45 dBm and − 29/− 35.34 dBm for D/L and U/L Ch respectively. The estimated power of FWM element is between 1.34 × 10 −52 to 2.15 × 10 −53 and 3.87 × 10 −52 to 2.41 × 10 −51 contributing crosstalk between Ch ( Cc ) of − 31.97/− 30.12 dB for down/up spectrum under the impact of SPM and XPM respectively accommodating splitter configuration of 768 at 40 km.

Analysis of System Capacity and Spectral Efficiency of Fixed-Grid Network

“…By 2022, it's projected that traffic between machines and connected devices would increase globally at a compound annual growth rate of 47% [15] [16]. By 2023, Cisco predicts that 50 billion people using fixed-line, mobile, and machine-to-machine internet will need between 44 and 110 Mbps of bandwidth per user to access modern applications [17] [18]. All this prediction shows that there is high demand for data rates so which drives to do the investigation of the Cband capacity for upcoming demand.…”