gdsfactory.cross_section.strip_heater_metal_undercut

gdsfactory.cross_section.strip_heater_metal_undercut#

gdsfactory.cross_section.strip_heater_metal_undercut(width=0.5, layer='WG', heater_width=2.5, trench_width=6.5, trench_gap=2.0, layer_heater='HEATER', layer_trench='DEEPTRENCH', sections=None, **kwargs)[source]#

Returns strip cross_section with top metal and undercut trenches on both.

sides.

dimensions from https://doi.org/10.1364/OE.18.020298

Parameters:

  • width (float) – waveguide width.

  • layer (tuple[int, int] | str | int | LayerEnum) – waveguide layer.

  • heater_width (float) – of metal heater.

  • trench_width (float) – in um.

  • trench_gap (float) – from waveguide edge to trench edge.

  • layer_heater (tuple[int, int] | str | int | LayerEnum) – heater layer.

  • layer_trench (tuple[int, int] | str | int | LayerEnum) – tench layer.

  • sections (tuple[Section, ...] | None) – cross_section sections.

  • kwargs (Any) – cross_section settings.

Return type:

CrossSection

|<-------heater_width--------->|
 ______________________________
|                              |
|         layer_heater         |
|______________________________|

     |<------width------>|
      ____________________ trench_gap
     |                   |<----------->|              |
     |                   |             |   undercut   |
     |       width       |             |              |
     |                   |             |<------------>|
     |___________________|             | trench_width |
                                       |              |
                                       |              |

import gdsfactory as gf

xs = gf.cross_section.strip_heater_metal_undercut(width=0.5, heater_width=2, trench_width=4, trench_gap=4)
p = gf.path.arc(radius=10, angle=45)
c = p.extrude(xs)
c.plot()

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

../_images/gdsfactory-cross_section-strip_heater_metal_undercut-1.png
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