BaldrApp 0.1.0

Simulating Baldr - the Zernike Wavefront Sensor for Asgard

BaldrApp

Simulating Baldr - the Zernike Wavefront Sensor for Asgard

Includes

• a PyQt app for end-to-end simulatations and visualization of Baldr operations (closed and open loop). Try:

  python apps/baldr_closed_loop_app/closed_loop_pyqtgraph.py

• a Streamlit application that simulates a Zernike Wavefront Sensor optical system using Fresnel diffraction propagation to model system mis-alignments. The default setup is for simulating the last (critical) part of the optical train of Baldr. Try:

  streamlit run apps/baldr_alignment_app/Baldr_Fresnel_App.py

• general packaged tools for simulating ZWFS's. These build upon the python pyZELDA package.

Installation

1. Clone the repository:

   git clone https://github.com/courtney-barrer/BaldrApp
   

Depends on a forked version of the pyZELDA package (https://github.com/courtney-barrer/pyZELDA) which is specified in the requirements.txt.

if there are path issues after setup try install directly:

pip install pyzelda@git+https://github.com/courtney-barrer/pyZELDA.git@b42aaea5c8a47026783a15391df5e058360ea15e

Features

Key Features:

1. User Inputs via Sidebar:

   • Wavelength: Controls the light wavelength in micrometers.
   • Zernike Aberration: Users define Zernike mode and coefficient to simulate optical aberrations.
   • Phasemask Properties: Diameter, phase shift, on-axis/off-axis transmission coefficients.
   • Optical Element Offsets: Users can shift positions of elements like phase mask, lenses, and cold stop.
   • Element Inclusion: Toggle the inclusion/exclusion of key components (phase mask, cold stop).

2. System Propagation and Plot:

   • Calculates wavefront propagation through a multi-element optical system (lenses, phase mask, cold stop).
   • Fresnel diffraction propagation is used to model the interaction of light with optical elements.
   • Applies Zernike aberrations to simulate their effect on intensity measured at the detector.
   • Visualizes the intensity distribution at the detector using a heatmap.

3. Update Button:

   • Plot updates only when the "Update" button is pressed, making the app more efficient.
   • Input values are stored in st.session_state to prevent unnecessary re-runs.

4. Plotting the Results:

   • The app bins and displays the resulting intensity distribution at the detector.
   • A heatmap shows how system parameters affect the output.