mxpic.components.composites.SptTree#

SplittingTree#

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

Bases: object

Class for generating splitting tree.

Paras:
  1. ybranch [class] (Default None)

    • length (Default: 28) Length of the ybranch

    • width (Default: 2) Pitch between two output waveguides

    • w_wg (Default: 0.45) Width of output waveguide

    • cell (Default: box)

      • a1 [Pin] Input waveguide

      • b1 [Pin] Output waveguide1

      • b2 [Pin] Output waveguide2

  2. output_number [-] (Default: 16)

    Number of output channels(Need to be 2^N)

  3. bend_radius [um] (Default: 10)

    Bend radius used to connect the different layer of Y branch

  4. output_pitch [um] (Default: None)

    Can define the pitch of output channel(If ==None, then pitch=self.width, which is the minimum pitch)

generate_gds()#

Generate the gds of splitting tree.