LMZ processor

Processes data from Lumped Mach-Zehnder Modulators

Made by Team 1: Kim Beomseo, Son Eunji, Lee Hyeonseok

Introduction

This program is a tool for analyzing and visualizing the characteristics of multiple LMZ devices.

Key Features

• Automated analysis of electrical/optical properties of LMZ devices.
• Data visualization.
• Raising flags for unexpected values (low fit result, low transmission).
• Exporting analysis results to an Excel file.

How it works

Directories

• dat
  • Data to be analyzed are put here.
• doc
  • Jupyter notebook file for analysis visualization is here.
• res
  • Resultant plot images and Excel file are saved here.
• src
  • Scripts are placed here.

Scripts

• run.py

  • Includes script information and run options.

  • # ------ Info & Options ------ #
    info = {
      'script_id': "Process LMZ",
        'script_owner': 'Team 1',
        'script_version': 0.1,
        'operator_name': "", # Put your name here
    }
    wafer = []  # ['D07', 'D08', ...]. Blank out list to process all wafers
    device = ['LMZC', 'LMZO'] 
    save_figure = False # save figures in res folder
    export_excel = True # save analysis result as an Excel file

Scripts below must be executed from run.py.

• get_lmz_path.py
  • Be ran once to get XML file paths.
  • Also creates directories in res folder.
• operate.py
  • Executes main process and loops for all XML data.
• vi_process.py
  • Gets Current-Voltage data and performs polynomial fitting.
• trans_process.py
  • Gets transmission spectra + reference. Performs reference fitting and transmission flattening.
• plot_figure.py
  • Plots transmission spectra, fitted reference, flattened transmission and I-V characteristics.
  • Saves plot images in res folder.
• dataframe.py
  • Aggregates process results and outputs to an Excel file in res folder.

How to install and run

• Requirements

pandas
numpy
lmfit
matplotlib
scipy
openpyxl
ipywidgets
IPython

Step 1: Install requirements

For pip:

$ pip install -r requirements.txt

For Anaconda:

$ conda install -r requirements.txt

Step 2: Put LMZ measurement XML data into dat folder

File structure must be like below (currently supports for only 1 Batch folder):

dat/
└── Batch/
    ├── Wafer1/
    │   ├── Measure_date1/
    │   │   └── data1.xml
    │   │   └── data2.xml
    │   │   └── data3.xml
    │   │   └── ...
    │   ├── Measure_date2/
    │   │   └── data1.xml
    │   │   └── ...
    │   ├── ...
    │
    │
    ├── Wafer2/
    │   ├── Measure_date1/
    │   │   └── data1.xml
    │   ├── Measure_date2/
    │   │   └── data1.xml
    │   ├── ...
    │
    │
    ├── ...

Step 3: Open run.py and configure options

Check script descriptions!

Step 4: Run run.py

It may take 3-5 minutes for processing 100 data

Step 5 Check process results in res folder

Troubleshooting

• Issue: The program does not start.
  • Solution: Ensure all dependencies are installed and Python is correctly set up.
• Issue: Data file not recognized.
  • Solution: Verify that the data file is in the correct format and located in the dat/ directory.

Contact Email

If you have any questions or inquiries, please contact us via email.

name	email
Lee Hyeonseok	[email protected]
Kim Beomseo	[email protected]
Son Eunji	[email protected]