The software application by Synopsys that includes the feature/module called RSOFT_OPTSIM is **RSoft Photonic Device Tools**.
**RSOFT_OPTSIM** specifically refers to the "Optical Simulation" module within RSoft. This module is used for simulating and analyzing optical devices and photonic systems. It allows designers to model various optical phenomena and behaviors in devices like waveguides, resonators, and other photonic structures. Users can