Create a Parametrized Cell(PCell)
This section is a tutorial for users how to create Pcells from the basic components of a photonics integrated circuits.
In the first section BendEuler, the Pcell is created by several geometries (curves) to generate the shape of the cell, some other examples can be found in Straight, Taper.
The second section Splitter is created by the Pcells generated in the first section by defining the parameters and locations of each PCells in section I, then connect them together to generate a Pcell with a higher level.
Finally, the third section Mzm is created by calling the Pcells either in section I or II and then defining parameterizable parameters, rearranging and connecting them to generate the PCell with the highest level.