def add_gc(
component=waveguide,
component_name=None,
layer_label=LAYER.LABEL,
grating_coupler=gc_te1550,
bend_factory=bend_circular,
straight_factory=waveguide,
taper_factory=taper_factory,
route_filter=connect_strip,
gc_port_name="W0",
get_input_labels_function=get_input_labels,
with_align_ports=False,
):
c = pp.routing.add_io_optical(
component=component,
component_name=component_name,
bend_factory=bend_factory,
straight_factory=straight_factory,
route_filter=route_filter,
grating_coupler=grating_coupler,
layer_label=layer_label,
taper_factory=taper_factory,
gc_port_name=gc_port_name,
get_input_labels_function=get_input_labels_function,
with_align_ports=with_align_ports,
)
c = rotate(c, -90)
return c
def gc_tm1550():
c = import_gds("ebeam_gc_tm1550")
c = rotate(component=c, angle=180)
c.polarization = "tm"
c.wavelength = 1550
auto_rename_ports(c)
return c
def gc_te1550_broadband():
c = import_gds("ebeam_gc_te1550_broadband")
c = rotate(component=c, angle=180)
c.polarization = "te"
c.wavelength = 1550
auto_rename_ports(c)
return c
def add_electrical_pads(component: Component, rotation=180, **kwargs):
"""add compnent with top electrical pads and routes
Args:
component: Component,
pad_spacing: float = 150.,
pad: Callable = pad,
fanout_length: Optional[int] = None,
max_y0_optical: None = None,
waveguide_separation: float = 4.0,
bend_radius: float = 0.1,
connected_port_list_ids: None = None,
n_ports: int = 1,
excluded_ports: List[Any] = [],
pad_indices: None = None,
route_filter: Callable = connect_elec_waypoints,
port_name: str = "W",
pad_rotation: int = -90,
x_pad_offset: int = 0,
port_labels: None = None,
select_ports: Callable = select_electrical_ports,
"""
c = Component(f"{component.name}_pad")
cr = rotate(component, rotation)
elements, pads, _ = route_pad_array(
component=cr,
**kwargs,
)
c << cr
for e in elements:
c.add(e)
for e in pads:
c.add(e)
for pname, p in cr.ports.items():
if p.port_type == "optical":
c.add_port(pname, port=p)
return c.rotate(angle=-rotation)
def gc_te1550():
c = import_gds("ebeam_gc_te1550")
c = rotate(c, 180)
c.polarization = "te"
c.wavelength = 1550
return c
)
for i, pad in zip(pad_indices, pads)
]
io_pad_lines += [pads[:]]
if connected_port_list_ids:
ordered_ports = [component.ports[i] for i in connected_port_list_ids]
for pads in io_pad_lines:
for i in range(N):
p0 = pads[i].ports[port_name]
p1 = ordered_ports[i]
elements += [routing_method(p0, p1, bend_radius=bend_radius)]
return elements, io_pad_lines, y0_optical
if __name__ == "__main__":
from pp.rotate import rotate
c = pp.c.mzi2x2(with_elec_connections=True)
c = rotate(c, 180)
elements, pads, _ = route_pad_array(c, fanout_length=100)
for e in elements:
c.add(e)
for e in pads:
c.add(e)
pp.show(c)
def get_route2individual_gratings(component,
optical_io_spacing=50,
grating_coupler=grating_coupler_te,
straight_factory=waveguide,
min_input2output_spacing=230,
optical_routing_type=2,
**kwargs):
""" Returns component I/O for optical testing with single input and oputput fibers (no fiber array)
Args:
component: to add grating couplers
optical_io_spacing: between grating couplers
grating_coupler:
straight_factory
min_input2output_spacing: so opposite fibers do not touch
optical_routing_type: 0, 1, 2
.. plot::
:include-source:
import pp
from pp.routing import add_io_optical
from pp.routing import get_route2individual_gratings
c = pp.c.mmi1x2()
cc = add_io_optical(c, get_route_factory=get_route2individual_gratings)
pp.plotgds(cc)
"""
grating_coupler = pp.call_if_func(grating_coupler)
if component.xsize + 2 * grating_coupler.xsize < min_input2output_spacing:
fanout_length = (min_input2output_spacing - component.xsize -
2 * grating_coupler.xsize) / 2
else:
fanout_length = None
west_ports = [
p for p in component.get_optical_ports() if p.name.startswith("W")
]
east_ports = [
p for p in component.get_optical_ports() if not p.name.startswith("W")
]
# add west input grating couplers
component.ports = {p.name: p for p in west_ports}
component = component.rotate(90)
elements_east, io_grating_lines_east, _ = get_route2fiber_array(
component=component,
with_align_ports=False,
optical_io_spacing=optical_io_spacing,
fanout_length=fanout_length,
grating_coupler=grating_coupler,
optical_routing_type=optical_routing_type,
**kwargs)
component = rotate(component, angle=-90)
component.ports = {p.name: p for p in east_ports}
component = rotate(component, angle=-90)
elements_west, io_grating_lines_west, _ = get_route2fiber_array(
component=component,
with_align_ports=False,
optical_io_spacing=optical_io_spacing,
fanout_length=fanout_length,
grating_coupler=grating_coupler,
**kwargs)
for e in elements_west:
elements_east.append(e.rotate(180))
for io in io_grating_lines_west[0]:
io_grating_lines_east.append(io.rotate(180))
return elements_east, io_grating_lines_east, None
