mxpic.components.composites.SptTree#

Optical splitting tree composite layouts.

SplittingTree#

class mxpic.components.composites.SptTree.SplittingTree(ybranch=None, output_number=16, bend_radius=10, output_pitch=None, show_pins=False)#

Bases: object

Binary splitter tree built from repeated Y-branch cells.

Parameters:

  • ybranch (Any, optional) – Y-branch object with a cell attribute and a1, b1, and b2 pins. If omitted, a simple box-based Y-branch is generated.

  • output_number (int, optional) – Number of output channels. Values are coerced to the nearest lower power of two when needed.

  • bend_radius (int, optional) – Bend radius used to route between splitter levels.

  • output_pitch (Any, optional) – Output channel pitch in microns. If omitted, the Y-branch output pitch is used.

  • show_pins (bool, optional) – Show Nazca pin stubs in the generated layout.

cell#

Generated splitting tree layout cell.

Type:

nazca.Cell

generate_gds()#

Generate the gds of splitting tree.