def _default_expanded_wg_template(self):
wstart1 = PathTraceWindow(layer=i3.TECH.PPLAYER.WG.CORE,
start_offset=-self.expanded_wg_width * 0.5,
end_offset=self.expanded_wg_width * 0.5)
wstart2 = PathTraceWindow(
layer=i3.TECH.PPLAYER.WG.CLADDING,
start_offset=-(self.expanded_wg_width + self.trench_width) * 0.5,
end_offset=-(self.expanded_wg_width + self.trench_width) * 0.5,
line_width=0)
wstart3 = PathTraceWindow(
layer=i3.TECH.PPLAYER.WG.CLADDING,
start_offset=(self.expanded_wg_width + self.trench_width) * 0.5,
end_offset=(self.expanded_wg_width + self.trench_width) * 0.5,
line_width=0)
expanded_wg_template = i3.WindowWaveguideTemplate()
expanded_wg_template.Layout(windows=[wstart1, wstart2, wstart3])
return expanded_wg_template
process_layer_map={wg_process: wg_layer},
process_to_material_stack_map= # (wg_process, )
[((0,), silicon),
((1,), oxide),
],
is_lf_fabrication={wg_process: False}
)
return vfab_process
wg_width = 0.5
wg_length = 2.0
# waveguide template
wg_tmpl = i3.WindowWaveguideTemplate()
wg_tpl_lay = wg_tmpl.Layout(windows=[
i3.PathTraceWindow(layer=core_layer,
start_offset=-0.5 * wg_width,
end_offset=+0.5 * wg_width),
i3.PathTraceWindow(layer=clad_layer,
start_offset=-0.5 * wg_width - 2.0,
end_offset=0.5 * wg_width + 2.0)
]
)
vfab_process = vfab()
xsection = wg_tpl_lay.cross_section(process_flow=vfab_process)
xsection.visualize()
# waveguide