Tool Used: OptSim
This example shows RSOA-based bidirectional PON modeling in OptSim. Within the global fiber-optic infrastructure, passive optical networks (PONs) play an important role in fiber-to-the-home (FTTH) and fiber-to-the-premises (FTTP) solutions. In a typical PON, a central office (CO) distributes data over passive optical fiber to various optical network terminations (ONTs), which in turn send data back upstream to the CO. Researchers have proposed a number of low-cost solutions for the ONT upstream transmitters, including the use of reflective SOAs (RSOAs) to remodulate the downstream signal in order to produce the new upstream signal. With its new comprehensive model for SOAs, OptSim - RSoft's industry-leading fiber-optic systems simulator - is ideal for modeling these types of PONs.
The figure below illustrates an OptSim schematic for simulating the simultaneous upstream and downstream transmission of a single optical channel over a PON: