Note

This page was generated from circuit-examples//E.Input-output-coupling//41-LaunchPad.ipynb.

CPW Launch Pad

Preparations

The next cell enables module automatic reload. Your notebook will be able to pick up code updates made to the qiskit-metal (or other) module code.

%reload_ext autoreload
%autoreload 2

Import key libraries and open the Metal GUI. Also we configure the notebook to enable overwriting of existing components

from qiskit_metal import designs, draw
from qiskit_metal import MetalGUI, Dict, Headings

design = designs.DesignPlanar()
gui = MetalGUI(design)

# if you disable the next line, then you will need to delete a component [<component>.delete()] before recreating it
design.overwrite_enabled = True

from qiskit_metal.qlibrary.terminations.launchpad_wb_coupled import LaunchpadWirebondCoupled

#Explore the options of the LaunchpadWirebondCoupled

LaunchpadWirebondCoupled.get_template_options(design)

{'layer': '1',
 'trace_width': 'cpw_width',
 'trace_gap': 'cpw_gap',
 'coupler_length': '62.5um',
 'lead_length': '25um',
 'pos_x': '0um',
 'pos_y': '0um',
 'orientation': '0'}

#Setup the launchpad location and orientation
launch_options = dict(pos_x='990um', pos_y='2812um', orientation='270', lead_length='30um')

lp = LaunchpadWirebondCoupled(design, 'P4_Q', options = launch_options)

gui.rebuild()
gui.autoscale()

# Get a list of all the qcomponents in QDesign and then zoom on them.
all_component_names = design.components.keys()

gui.zoom_on_components(all_component_names)

# Look at the options of the launch pad in QDesign.
lp.options

{'layer': '1',
 'trace_width': 'cpw_width',
 'trace_gap': 'cpw_gap',
 'coupler_length': '62.5um',
 'lead_length': '30um',
 'pos_x': '990um',
 'pos_y': '2812um',
 'orientation': '270'}

#Save screenshot as a .png formatted file.
gui.screenshot()

# Screenshot the canvas only as a .png formatted file.
gui.figure.savefig('shot.png')

from IPython.display import Image, display
_disp_ops = dict(width=500)
display(Image('shot.png', **_disp_ops))

# Closing the Qiskit Metal GUI
gui.main_window.close()

True

For more information, review the Introduction to Quantum Computing and Quantum Hardware lectures below

Superconducting Qubits I: Quantizing a Harmonic Oscillator, Josephson Junctions Part 1	Lecture Video	Lecture Notes	Lab
Superconducting Qubits I: Quantizing a Harmonic Oscillator, Josephson Junctions Part 2	Lecture Video	Lecture Notes	Lab
Superconducting Qubits I: Quantizing a Harmonic Oscillator, Josephson Junctions Part 3	Lecture Video	Lecture Notes	Lab
Superconducting Qubits II: Circuit Quantum Electrodynamics, Readout and Calibration Methods Part 1	Lecture Video	Lecture Notes	Lab
Superconducting Qubits II: Circuit Quantum Electrodynamics, Readout and Calibration Methods Part 2	Lecture Video	Lecture Notes	Lab
Superconducting Qubits II: Circuit Quantum Electrodynamics, Readout and Calibration Methods Part 3	Lecture Video	Lecture Notes	Lab