FDTD on GDSFactory+ Cloud¶

MEEP is an open-source FDTD electromagnetic simulator. This notebook demonstrates using the gsim.meep API to run an S-parameter simulation on a parametric cell and visualize the data.

Requirements:

Corner Stone PDK: uv pip install cspdk
GDSFactory Simulation SDK: uv pip install gsim
GDSFactory+ account for cloud simulation

Make sure you have gsim installed by uncommenting this code

#! uv pip install gsim

Load a pcell from the Cornerstone PDK¶

from cspdk.si220 import PDK, cells

PDK.activate()

c = cells.coupler(length=20)

c

Configure and run simulation¶

from gsim import meep

sim = meep.Simulation()

sim.geometry(component=c, z_crop="auto")
sim.materials = {"Si": 3.47, "SiO2": 1.44}
sim.source(port="o1", wavelength=1.55, wavelength_span=0.04)
sim.monitors = ["o1", "o2", "o3", "o4"]
sim.domain(pml=1.0, margin=0.5)
sim.solver(resolution=20, save_animation=True, verbose_interval=5.0)
sim.solver.stop_when_energy_decayed()

print(sim.validate_config())

sim.plot_2d(slices="xyz")

Run simulation on cloud¶

# Run on GDSFactory+ cloud
result = sim.run()

result.plot_interactive()

result.plot_interactive(phase=True)

result.show_animation()