si_fab.all.YBranchOptimized

class si_fab.all.YBranchOptimized

This Y-branch is the result of an inverse optimization process performed using Ansys Lumerical FDTD. https://support.lumerical.com/hc/en-us/articles/360042305274 The layout was re-implemented in Luceda IPKISS. A validation simulation is launched using the Luceda Link for Ansys Lumerical.

Parameters:

x_end: float

X-position of the interface between the splitter and the output waveguides

x_start: float

X-position of the interface between the splitter and the input waveguide

y_end: float and Real, number and number >= 0

Y-position of the edge of the splitter at the interface with the output waveguides

y_start: float and Real, number and number >= 0

Y-position of the edge of the splitter at the interface with the input waveguide

trace_template: PCell and _TraceTemplate

Trace template of the Y-branch

bend_height: float and number > 0

The distance covered by bend sections after the splitter along the y-dimension

bend_length: float and number > 0

The distance covered by bend sections after the splitter along the x-dimension

straight_length: float and number > 0

Length of the straight section before the splitter

n_interpolation_points: int

Number of interpolation points

initial_points_x: ndarray

X-coordinates of the edge of the Y-branch, before interpolation

initial_points_y: ndarray

Y-coordinates of the edge of the Y-branch, before interpolation

name: String that contains only ISO/IEC 8859-1 (extended ASCII py3) or pure ASCII (py2) characters

The unique name of the pcell

Other Parameters:

data_tag: locked

waveguides: List with type restriction, allowed types: <class ‘ipkiss3.pcell.cell.pcell.PCell’>, locked

List with two elements. First element is the input waveguide.Second element is one of the output waveguides, with the other output waveguide mirrored along the x-axis.

from si_fab import technology
from si_fab.all import YBranchOptimized

lo = YBranchOptimized().Layout()
lo.visualize(annotate=True)

Ports

Name	Type	Position	Angle	Waveguide Template	Inclination
in1	Optical	(-1.5, 0.0)	180.0	SiWireWaveguideTemplate	0.0
out2	Optical	(5.0, 1.35)	0.0	SiWireWaveguideTemplate	0.0
out1	Optical	(5.0, -1.35)	0.0	SiWireWaveguideTemplate	0.0