The ODN is the optical transport path that connects the OLT to ONUs/ONTs using passive optical components. It forms the backbone of the PON architecture. 9807 (XGS-PON), and IEC 60794 cable standards, the ODN forms the physical optical path responsible. An Optical Distribution Network (ODN) distributes optical signals throughout fiber optic communication systems. These networks form. In recent years, Fiber to the Home (FTTH) has started to be taken seriously by telecommunication companies around the world, and enabling technologies are being developed rapidly.