The optical splitter is located in the Headend (HE), Central Office (CO), Computer Room (Main Equipment Room) or in building. Light power goes in and light power coming out of the various legs is reduced in accordance to the split ratio. For every 2X increase in split ratio, power is reduced by roughly 3 dB. In most cases, the power out of each leg is equal, but we'll discuss a version where the power coming out is. 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. By dividing a single optical signal from a central Optical Line Terminal (OLT) into multiple outputs for Optical Network. Optical splitters play an important role in FTTH PON networks where a single optical input is split into multiple output, thus allowing a single PON interface to be shared among many subscribers. 28% from 2020 to 2027, according to market analysis by MarketResearch. A Passive Optical Network (PON) is a fiber optic technology utilizing point-to-multipoint. To address the demand for low-cost, low-loss, and environmentally friendly optical power dividers in short-range visible light communication (VLC) systems, a low-loss 1 × 2 Y-branch optical splitter based on the integration of a planar optical waveguide (POW) and plastic optical fiber (POF) is. An optical splitter is a passive bidirectional element, which is used to connect a large number of subscribers/ONUs to an OLT. It is one of the most important elements of all FTTx PON and OLAN networks.