def get_input_labels(
io_gratings: List[ComponentReference],
ordered_ports: List[Port],
component_name: str,
layer_label: Layer,
gc_port_name: str,
get_input_label_text_function=get_input_label_text,
) -> List[Label]:
"""Returns list of labels for a list of grating coupler references.
Args:
io_gratings: grating coupler references
ordered_ports: list of ordered_ports
component_name:
layer_label:
gc_port_name: gc_port_name port name
get_input_label_function:
"""
elements = []
for i, g in enumerate(io_gratings):
label = get_input_label(
port=ordered_ports[i],
gc=g,
gc_index=i,
component_name=component_name,
layer_label=layer_label,
gc_port_name=gc_port_name,
get_input_label_text_function=get_input_label_text_function,
)
elements += [label]
return elements
def test_add_labels_optical() -> Component:
c = gf.components.straight()
gc = gf.components.grating_coupler_elliptical_te()
label1 = get_input_label(port=c.ports["o1"],
gc=gc,
gc_index=0,
layer_label=gf.LAYER.LABEL)
label2 = get_input_label(port=c.ports["o2"],
gc=gc,
gc_index=1,
layer_label=gf.LAYER.LABEL)
add_labels(c, get_label_function=get_input_label, gc=gc)
labels_text = [c.labels[0].text, c.labels[1].text]
# print(label1)
# print(label2)
assert label1.text in labels_text, f"{label1.text} not in {labels_text}"
assert label2.text in labels_text, f"{label2.text} not in {labels_text}"
return c
def loss_deembedding_ch13_24(
pitch: float = 127.0,
R: float = 10.0,
grating_coupler_factory: ComponentFactory = grating_coupler_te,
input_port_indexes: Tuple[int, ...] = (0, 1),
cross_section: CrossSectionFactory = strip,
**kwargs) -> Component:
gc = grating_coupler_factory()
c = gf.Component()
dx = pitch
gcs = [
gc.ref(position=(i * dx, 0), port_id="o1", rotation=-90)
for i in range(4)
]
gc_ports = [g.ports["o1"] for g in gcs]
c.add(gcs)
c.add(
get_route(gc_ports[0],
gc_ports[2],
start_straight=40.0,
taper_factory=None,
cross_section=cross_section,
**kwargs).references)
gsi = gc.size_info
p1 = gc_ports[1]
p3 = gc_ports[3]
a = R + 5.0 # 0.5
b = max(2 * a, pitch / 2)
y_bot_align_route = -gsi.width - 5.0
c.add(
connect_loopback(p1,
p3,
a,
b,
R,
y_bot_align_route,
cross_section=cross_section,
**kwargs))
for i, index in enumerate(input_port_indexes):
label = get_input_label(gc_ports[index],
gc,
i,
component_name=inspect.stack()[0][3])
label.position = gc_ports[index].position
c.add(label)
return c
def loss_deembedding_ch14_23(
pitch: float = 127.0,
grating_coupler: ComponentFactory = grating_coupler_te,
input_port_indexes: Tuple[int, ...] = (0, 1),
**kwargs) -> Component:
"""Grating coupler test structure for fiber array.
Connects channel 1->4, 2->3
Args:
pitch:
grating_coupler:
input_port_indexes:
Keyword Args:
cross_section settings
"""
gc = grating_coupler()
c = gf.Component()
dx = pitch
gcs = [
gc.ref(position=(i * dx, 0), port_id="o1", rotation=-90)
for i in range(4)
]
gc_ports = [g.ports["o1"] for g in gcs]
c.add(gcs)
c.add(
get_route(gc_ports[0],
gc_ports[3],
start_straight_length=40.0,
taper=None,
**kwargs).references)
c.add(
get_route(gc_ports[1],
gc_ports[2],
start_straight_length=30.0,
taper=None,
**kwargs).references)
for i, index in enumerate(input_port_indexes):
label = get_input_label(gc_ports[index],
gc,
i,
component_name=inspect.stack()[0][3])
label.position = gc_ports[index].position
c.add(label)
return c
def grating_coupler_loss_fiber_array(
pitch: float = 127.0,
grating_coupler: ComponentFactory = grating_coupler_te,
input_port_indexes: Tuple[int, ...] = (0, 1),
**kwargs) -> Component:
"""Returns Grating coupler fiber array loopback.
Args:
pitch:
grating_coupler:
cross_section:
input_port_indexes: adds test labels
kwargs: cross_section settings
"""
gc = grating_coupler()
c = gf.Component()
dx = pitch
gcs = [
gc.ref(position=(i * dx, 0), port_id="o1", rotation=-90)
for i in range(2)
]
gc_ports = [g.ports["o1"] for g in gcs]
c.add(gcs)
c.add(
get_route(gc_ports[0],
gc_ports[1],
start_straight_length=40.0,
taper=None,
**kwargs).references)
for i, index in enumerate(input_port_indexes):
label = get_input_label(gc_ports[index],
gc,
i,
component_name=inspect.stack()[0][3])
label.position = gc_ports[index].position
c.add(label)
return c
def loss_deembedding_ch14_23(
pitch: float = 127.0,
R: float = 10.0,
grating_coupler_factory: ComponentFactory = grating_coupler_te,
input_port_indexes: Tuple[int, ...] = (0, 1),
**kwargs) -> Component:
gc = grating_coupler_factory()
c = gf.Component()
dx = pitch
gcs = [
gc.ref(position=(i * dx, 0), port_id="o1", rotation=-90)
for i in range(4)
]
gc_ports = [g.ports["o1"] for g in gcs]
c.add(gcs)
c.add(
get_route(gc_ports[0],
gc_ports[3],
start_straight=40.0,
taper_factory=None,
**kwargs).references)
c.add(
get_route(gc_ports[1],
gc_ports[2],
start_straight=30.0,
taper_factory=None,
**kwargs).references)
for i, index in enumerate(input_port_indexes):
label = get_input_label(gc_ports[index],
gc,
i,
component_name=inspect.stack()[0][3])
label.position = gc_ports[index].position
c.add(label)
return c
