How are optical splitters used in the forward path?

Optical splitters serve a crucial role in fiber optic networks, particularly in the forward path by acting as passive branching devices that divide an optical signal across multiple output fibers. This function allows a single optical signal to be distributed efficiently to several endpoints, enabling multiple consumers or devices to receive the service from a single source.

When the optical signal reaches the splitter, it can be divided into various paths without the need for additional power or amplification, which is why they are termed "passive" devices. This method is widely used in fiber-to-the-home (FTTH) networks and other telecommunications infrastructures, facilitating the delivery of services such as internet, television, and telephony to multiple subscribers from a central point.

Although amplifiers and repeaters enhance signal strength and regenerate outputs, they do not perform the function of dividing the signal into multiple paths. Therefore, using optical splitters as functional devices in this manner is essential for optimizing network design and maximizing the use of existing fiber infrastructure.