One of the most critical components influencing FTTH performance and economics is the optical splitter. When used strategically, optical splitters enable service providers to expand coverage, reduce fiber usage, and simplify network operations. Optical audio, also known as TOSLINK (Toshiba Link), is a type of digital audio connection that uses light to transmit audio signals. It consists of a fiber optic cable that connects a source device, such as a TV or Blu-ray player, to a receiver or soundbar. This makes. In fiber optic networks, particularly in FTTx (Fiber to the x) and PON (Passive Optical Networks) deployments, splitters play a central role in distributing the optical signal from a single source to multiple destinations.