component with respect to is ability to generate, modify, transmit, and detect light.
Modeling generally considers the full 3D spatial behavior of the electromagnetic
field and/or the electron device characteristics, as well as the temporal aspects,
either directly in the time domain or indirectly in the frequency domain.
The system layer considers how collections of components function together to
form a system for transmission of information (digital or analog). The primary
objective is to determine the quality of transmission [e.g., BER (bit error rate) or
SNR (signal-to-noise ratio)] of a given system configuration. The larger scale of
systems simulation (in space, length of time, and number of components) necessitates
some form of abstraction ...