Cells SiN300

array

cspdk.si220.cells.array(component='pad', spacing: tuple[float, float] = (150.0, 150.0), columns: int = 6, rows: int = 1, add_ports: bool = True, size=None, centered: bool = False) → Component

An array of components.

Parameters:

• component – the component of which to create an array

• spacing – the x and y spacing by which to place the component

• columns – the number of components to place in the x-direction

• rows – the number of components to place in the y-direction

• add_ports – add ports to the component

• size – Optional x, y size. Overrides columns and rows.

• centered – center the array around the origin.

import cspdk

c = cspdk.si220.cells.array(component='pad', spacing=(150.0, 150.0), columns=6, rows=1, add_ports=True, centered=False)
c.plot()

(Source code, png, hires.png, pdf)

bend_euler

import cspdk

c = cspdk.si220.cells.bend_euler(angle=90.0, p=0.5, cross_section='xs_nc')
c.plot()

(Source code)

bend_euler_nc

import cspdk

c = cspdk.si220.cells.bend_euler_nc(angle=90.0, p=0.5, cross_section='xs_nc')
c.plot()

(Source code)

bend_euler_no

import cspdk

c = cspdk.si220.cells.bend_euler_no(angle=90.0, p=0.5, cross_section='xs_no')
c.plot()

(Source code)

bend_s

cspdk.si220.cells.bend_s(size: tuple[float, float] = (11.0, 1.8), cross_section: Callable[[...], CrossSection] | CrossSection | dict[str, Any] | str | Transition = 'xs_sc', **kwargs) → Component

An S-bend.

Parameters:

• size – the width and height of the s-bend

• cross_section – a cross section or its name or a function generating a cross section.

• kwargs – additional arguments to pass to the bend_s function.

import cspdk

c = cspdk.si220.cells.bend_s(size=(15.0, 1.8), cross_section='xs_nc')
c.plot()

(Source code)

coupler

cspdk.si220.cells.coupler(gap: float = 0.234, length: float = 20.0, dy: float = 4.0, dx: float = 10.0, cross_section: Callable[[...], CrossSection] | CrossSection | dict[str, Any] | str | Transition = 'xs_sc') → Component

A coupler.

a coupler is a 2x2 splitter

Parameters:

• gap – the gap between the waveguides forming the straight part of the coupler

• length – the length of the coupler

• dy – the height of the s-bend

• dx – the length of the s-bend

• cross_section – a cross section or its name or a function generating a cross section.

import cspdk

c = cspdk.si220.cells.coupler(gap=0.236, length=20.0, dy=4.0, dx=20.0, cross_section='xs_nc')
c.plot()

(Source code)

coupler_nc

import cspdk

c = cspdk.si220.cells.coupler_nc(gap=0.236, length=20.0, dy=4.0, dx=20.0, cross_section='xs_nc')
c.plot()

(Source code)

coupler_no

import cspdk

c = cspdk.si220.cells.coupler_no(gap=0.236, length=20.0, dy=4.0, dx=20.0, cross_section='xs_no')
c.plot()

(Source code)

coupler_straight

cspdk.si220.cells.coupler_straight(length: float = 20.0, gap: float = 0.27, cross_section: Callable[[...], CrossSection] | CrossSection | dict[str, Any] | str | Transition = 'xs_sc') → Component

The straight part of a coupler.

Parameters:

• length – the length of the straight part of the coupler.

• gap – the gap between the waveguides forming the straight part of the coupler.

• cross_section – a cross section or its name or a function generating a cross section.

import cspdk

c = cspdk.si220.cells.coupler_straight(length=20.0, gap=0.236, cross_section='xs_nc')
c.plot()

(Source code)

coupler_symmetric

cspdk.si220.cells.coupler_symmetric(gap: float = 0.234, dy: float = 4.0, dx: float = 10.0, cross_section: Callable[[...], CrossSection] | CrossSection | dict[str, Any] | str | Transition = 'xs_sc') → Component

The part of the coupler that diverges away from each other with s-bends.

Parameters:

• gap – the gap between the s-bends when closest together.

• dy – the height of the s-bend.

• dx – the length of the s-bend.

• cross_section – a cross section or its name or a function generating a cross section..

import cspdk

c = cspdk.si220.cells.coupler_symmetric(gap=0.236, dy=4.0, dx=20.0, cross_section='xs_nc')
c.plot()

(Source code)

die

cspdk.si220.cells.die(size=(11470.0, 4900.0), edge_to_grating_distance=150.0, edge_to_pad_distance=150.0, grating_coupler=None, grating_pitch=250.0, layer_floorplan=<LayerMapCornerstone.FLOORPLAN: 45>, ngratings=14, npads=31, pad='pad', pad_pitch=300.0, cross_section='xs_sc') → Component

A die template.

Parameters:

• size – the size of the die.

• edge_to_grating_distance – the distance from the edge to the grating couplers.

• edge_to_pad_distance – the distance from the edge to the pads.

• grating_coupler – the name of the grating coupler to use in the array.

• grating_pitch – the pitch of the grating couplers.

• layer_floorplan – the layer to use for the floorplan.

• ngratings – the number of grating couplers.

• npads – the number of pads.

• pad – the name of the pad to use in the array.

• pad_pitch – the pitch of the pads.

• cross_section – a cross section or its name or a function generating a cross section.

import cspdk

c = cspdk.si220.cells.die(cross_section='xs_nc')
c.plot()

(Source code)

die_nc

import cspdk

c = cspdk.si220.cells.die_nc(cross_section='xs_nc')
c.plot()

(Source code)

die_no

import cspdk

c = cspdk.si220.cells.die_no(cross_section='xs_no')
c.plot()

(Source code)

grating_coupler_array

cspdk.si220.cells.grating_coupler_array(pitch: float = 127.0, n: int = 6, centered=True, grating_coupler=None, port_name='o1', with_loopback=False, rotation=-90, straight_to_grating_spacing=10.0, radius: float | None = None, cross_section='xs_sc') → Component

An array of grating couplers.

Parameters:

• pitch – the pitch of the grating couplers

• n – the number of grating couplers

• centered – if True, centers the array around the origin.

• grating_coupler – the name of the grating coupler to use in the array.

• port_name – port name

• with_loopback – if True, adds a loopback between edge GCs. Only works for rotation = 90 for now.

• rotation – rotation angle for each reference.

• straight_to_grating_spacing – spacing between the last grating coupler and the loopback.

• radius – optional radius for routing the loopback.

• cross_section – a cross section or its name or a function generating a cross section.

import cspdk

c = cspdk.si220.cells.grating_coupler_array(pitch=127.0, n=6, cross_section='xs_nc', centered=True, port_name='o1', rotation=-90, straight_to_grating_spacing=10.0, with_loopback=False)
c.plot()

(Source code, png, hires.png, pdf)

grating_coupler_elliptical

cspdk.si220.cells.grating_coupler_elliptical(wavelength: float = 1.55, grating_line_width=0.315, cross_section='xs_sc') → Component

A grating coupler with curved but parallel teeth.

Parameters:

• wavelength – the center wavelength for which the grating is designed

• grating_line_width – the line width of the grating

• cross_section – a cross section or its name or a function generating a cross section.

import cspdk

c = cspdk.si220.cells.grating_coupler_elliptical(wavelength=1.55, grating_line_width=0.343, cross_section='xs_nc')
c.plot()

(Source code)

grating_coupler_elliptical_nc

import cspdk

c = cspdk.si220.cells.grating_coupler_elliptical_nc(wavelength=1.55, grating_line_width=0.33, cross_section='xs_nc')
c.plot()

(Source code)

grating_coupler_elliptical_no

import cspdk

c = cspdk.si220.cells.grating_coupler_elliptical_no(wavelength=1.31, grating_line_width=0.482, cross_section='xs_no')
c.plot()

(Source code)

grating_coupler_rectangular

cspdk.si220.cells.grating_coupler_rectangular(period=0.63, n_periods: int = 30, length_taper: float = 350.0, wavelength: float = 1.55, cross_section='xs_sc') → Component

A grating coupler with straight and parallel teeth.

Parameters:

• period – the period of the grating

• n_periods – the number of grating teeth

• length_taper – the length of the taper tapering up to the grating

• wavelength – the center wavelength for which the grating is designed

• cross_section – a cross section or its name or a function generating a cross section.

import cspdk

c = cspdk.si220.cells.grating_coupler_rectangular(period=0.66, n_periods=30, length_taper=200.0, wavelength=1.55, cross_section='xs_nc')
c.plot()

(Source code)

grating_coupler_rectangular_nc

import cspdk

c = cspdk.si220.cells.grating_coupler_rectangular_nc(period=0.66, n_periods=30, length_taper=200.0, wavelength=1.55, cross_section='xs_nc')
c.plot()

(Source code)

grating_coupler_rectangular_no

import cspdk

c = cspdk.si220.cells.grating_coupler_rectangular_no(period=0.964, n_periods=30, length_taper=200.0, wavelength=1.31, cross_section='xs_no')
c.plot()

(Source code)

mmi1x2

cspdk.si220.cells.mmi1x2(width: float | None = None, width_taper=1.5, length_taper=20.0, length_mmi: float = 5.5, width_mmi=6.0, gap_mmi: float = 0.25, cross_section: Callable[[...], CrossSection] | CrossSection | dict[str, Any] | str | Transition = 'xs_sc') → Component

An mmi1x2.

An mmi1x2 is a splitter that splits a single input to two outputs

Parameters:

• width – the width of the waveguides connecting at the mmi ports.

• width_taper – the width at the base of the mmi body.

• length_taper – the length of the tapers going towards the mmi body.

• length_mmi – the length of the mmi body.

• width_mmi – the width of the mmi body.

• gap_mmi – the gap between the tapers at the mmi body.

• cross_section – a cross section or its name or a function generating a cross section.

import cspdk

c = cspdk.si220.cells.mmi1x2(width_mmi=12.0, width_taper=5.5, length_taper=50.0, length_mmi=64.7, gap_mmi=0.4, cross_section='xs_nc')
c.plot()

(Source code)

mmi1x2_nc

import cspdk

c = cspdk.si220.cells.mmi1x2_nc(width_mmi=12.0, width_taper=5.5, length_taper=50.0, length_mmi=64.7, gap_mmi=0.4, cross_section='xs_nc')
c.plot()

(Source code)

mmi1x2_no

import cspdk

c = cspdk.si220.cells.mmi1x2_no(width_mmi=12.0, width_taper=5.5, length_taper=50.0, length_mmi=42.0, gap_mmi=0.4, cross_section='xs_no')
c.plot()

(Source code)

mmi2x2

cspdk.si220.cells.mmi2x2(width: float | None = None, width_taper: float = 1.5, length_taper: float = 20.0, length_mmi: float = 5.5, width_mmi: float = 6.0, gap_mmi: float = 0.25, cross_section: Callable[[...], CrossSection] | CrossSection | dict[str, Any] | str | Transition = 'xs_sc') → Component

An mmi2x2.

An mmi2x2 is a 2x2 splitter

Parameters:

• width – the width of the waveguides connecting at the mmi ports

• width_taper – the width at the base of the mmi body

• length_taper – the length of the tapers going towards the mmi body

• length_mmi – the length of the mmi body

• width_mmi – the width of the mmi body

• gap_mmi – the gap between the tapers at the mmi body

• cross_section – a cross section or its name or a function generating a cross section.

import cspdk

c = cspdk.si220.cells.mmi2x2(width_taper=5.5, length_taper=50.0, length_mmi=5.5, width_mmi=12.0, gap_mmi=0.4, cross_section='xs_nc')
c.plot()

(Source code)

mmi2x2_nc

import cspdk

c = cspdk.si220.cells.mmi2x2_nc(width_taper=5.5, length_taper=50.0, length_mmi=232.0, width_mmi=12.0, gap_mmi=0.4, cross_section='xs_nc')
c.plot()

(Source code)

mmi2x2_no

import cspdk

c = cspdk.si220.cells.mmi2x2_no(width_taper=5.5, length_taper=50.0, length_mmi=126.0, width_mmi=12.0, gap_mmi=0.4, cross_section='xs_no')
c.plot()

(Source code)

mzi

cspdk.si220.cells.mzi(delta_length: float = 10.0, bend='bend_euler_sc', straight='straight_sc', splitter='mmi1x2_sc', combiner='mmi2x2_sc', cross_section: Callable[[...], CrossSection] | CrossSection | dict[str, Any] | str | Transition = 'xs_sc') → Component

A Mach-Zehnder Interferometer.

Parameters:

• delta_length – the difference in length between the upper and lower arms of the mzi

• bend – the name of the default bend of the mzi

• straight – the name of the default straight of the mzi

• splitter – the name of the default splitter of the mzi

• combiner – the name of the default combiner of the mzi

• cross_section – a cross section or its name or a function generating a cross section.

import cspdk

c = cspdk.si220.cells.mzi(delta_length=10.0, bend='bend_euler_nc', straight='straight_nc', splitter='mmi1x2_nc', combiner='mmi2x2_nc', cross_section='xs_nc')
c.plot()

(Source code)

mzi_nc

import cspdk

c = cspdk.si220.cells.mzi_nc(delta_length=10.0, bend='bend_euler_nc', straight='straight_nc', splitter='mmi1x2_nc', combiner='mmi2x2_nc', cross_section='xs_nc')
c.plot()

(Source code)

mzi_no

import cspdk

c = cspdk.si220.cells.mzi_no(delta_length=10.0, bend='bend_euler_no', straight='straight_no', splitter='mmi1x2_no', combiner='mmi2x2_no', cross_section='xs_no')
c.plot()

(Source code)

pad

cspdk.si220.cells.pad() → Component

An electrical pad.

import cspdk

c = cspdk.si220.cells.pad()
c.plot()

(Source code, png, hires.png, pdf)

rectangle

cspdk.si220.cells.rectangle(**kwargs) → Component

A rectangle.

import cspdk

c = cspdk.si220.cells.rectangle()
c.plot()

(Source code, png, hires.png, pdf)

straight

cspdk.si220.cells.straight(length: float = 10.0, cross_section: Callable[[...], CrossSection] | CrossSection | dict[str, Any] | str | Transition = 'xs_sc', **kwargs) → Component

A straight waveguide.

Parameters:

• length – the length of the waveguide.

• cross_section – a cross section or its name or a function generating a cross section.

• kwargs – additional arguments to pass to the straight function.

import cspdk

c = cspdk.si220.cells.straight(length=10.0, cross_section='xs_nc')
c.plot()

(Source code)

straight_nc

import cspdk

c = cspdk.si220.cells.straight_nc(length=10.0, cross_section='xs_nc')
c.plot()

(Source code)

straight_no

import cspdk

c = cspdk.si220.cells.straight_no(length=10.0, cross_section='xs_no')
c.plot()

(Source code)

taper

cspdk.si220.cells.taper(length: float = 10.0, width1: float = 0.45, width2: float | None = None, port: Port | None = None, cross_section: Callable[[...], CrossSection] | CrossSection | dict[str, Any] | str | Transition = 'xs_sc', **kwargs) → Component

A taper.

A taper is a transition between two waveguide widths

Parameters:

• length – the length of the taper.

• width1 – the input width of the taper.

• width2 – the output width of the taper (if not given, use port).

• port – the port (with certain width) to taper towards (if not given, use width2).

• cross_section – a cross section or its name or a function generating a cross section.

• kwargs – additional arguments to pass to the taper function.

import cspdk

c = cspdk.si220.cells.taper(length=10.0, width1=1.2, cross_section='xs_nc')
c.plot()

(Source code)

taper_nc

import cspdk

c = cspdk.si220.cells.taper_nc(length=10.0, width1=1.2, cross_section='xs_nc')
c.plot()

(Source code)

taper_no

import cspdk

c = cspdk.si220.cells.taper_no(length=10.0, width1=0.95, cross_section='xs_no')
c.plot()

(Source code)

wire_corner

cspdk.si220.cells.wire_corner() → Component

A wire corner.

A wire corner is a bend for electrical routes.

import cspdk

c = cspdk.si220.cells.wire_corner()
c.plot()

(Source code, png, hires.png, pdf)