Triple cipher of secure image encryption using coexistence PON strategies bidirectional networks with extended reach

This work examines the challenges of simultaneously operating historical, future network approaches, and protective protocols–associated passive optical networks (PONs) and one point to different topologies. We look at coexistence difficulties for a range of user types, including home, and internet of things (IoT) consumers. Future access networks will need to handle several strategies simultaneously. To resolve this matter, our work proves how PON solutions with higher speeds using triple multi coexistence-PON applications. The OptiSystem software has been used in conjunction with the three algorithm ciphers. This work uses wavelength and time division multiplexed (TWDM) with three distinct coding for every wavelength to produce a novel speedy grayscale image scheme broadcast atop bidirectional fiber connection. For 50G-PON and NG-PON2, four distinct grayscale pictures are sequentially broadcast at 2*50 Gbps and 2*10 Gbps, respectively, for a symmetric 120 Gbps overall capacity. A dual-directional connection with a number of splitting 1:128 looks to be feasible at 50 km, according to simulation study. Both upstream and downstream receiver sensitivity demonstrated is −27.5, −30.2, −24.8, −27.2 dBm and −30, −34.9, −28.5, −28.5 dBm for (1st, 2nd) NG-PON2 and (3rd, 4th) 50G-PON channels, respectively. Superior safety and bandwidth improves the authenticity network’s dependability in coexisting PON and meets the needs for access network range in future cities.