The optical splitter is applied to an ODN of a PON, and a light-out section can be identified by means of the wavelength of or transmittance for a filtered optical signal, so that when test light is sent on an OLT side to detect an optical link in which an ONU is located, types. The optical splitter is applied to an ODN of a PON, and a light-out section can be identified by means of the wavelength of or transmittance for a filtered optical signal, so that when test light is sent on an OLT side to detect an optical link in which an ONU is located, types. Bandwidth is shared amongst customers in a PON, and the bandwidth received by a customer is not related to the power received at the optical network terminal (ONT) as long as the power is high enough so the ONT can operate. Splits are most commonly factors of 2, such as 1x2, 1x4, 1x8, 1x16, 1x32. An optical splitter, an ODN, a method for identifying an optical link in which an ONU is located, an OLT, an ONU, and a PON system. The optical splitter comprises a light-in section and N light-out sections, each of at least N-1 light-out sections is provided with at least one optical filtering. The Asia Pacific region (APAC) leads worldwide consumption of Planar Lightwave Circuit (PLC) splitter compact devices with a 68% share, followed by the Americas and the EMEA (Europe, Middle East, and Africa) region. The global PLC Fiber Optic Splitter market was valued at $4. 47 Billion USD in 2020. A GEPON system usually consists of an OLT (Optical Line Terminal) at the service provider's central office and multiple ONU (Optical Network Units) or ONT (Optical Network Terminals) close to the end user as optical splitters. It functions like a router or switch in a traditional network but tailored for fiber optics. Essentially, the OLT is the brains of the FTTH network, controlling how. In the backbone of modern Fiber-to-the-Home (FTTH) networks, optical splitters serve as the unsung heroes that enable cost-efficient connectivity for millions of subscribers.
