DWDM Table Generator

This Python script generates a Dense Wavelength Division Multiplexing (DWDM) table and provides utilities for frequency and wavelength conversions based on the ITU grid. It supports custom configurations, including center frequency, slice width, and granularity.

Features

• Generate a DWDM table with n, frequency, wavelength, and ITU channel mappings.
• Convert n to frequency and m to bandwidth.
• Convert frequency to n and width to m.
• Mark frequencies with their corresponding ITU channel (if available).
• Save results to a CSV file.

Requirements

• Python 3.6 or later

Installation

1. Clone the repository:

   git clone https://github.com/devfilipe/wdm.git

2. Navigate to the project directory:

   cd wdm

Usage

Command-line Arguments

The script provides several command-line options:

Argument	Description
--generate-table	Generate the DWDM table and save it to a CSV file.
--center-freq	Center frequency in THz (default: 193.1).
--min-freq	Minimum frequency in THz (default: 191.150).
--max-freq	Maximum frequency in THz (default: 196.300).
--slice-width	Slice width in GHz (default: 6.25 GHz).
--granularity	Granularity in GHz (default: 12.5 GHz).
--to-freq-width	Convert n to frequency and m to width.
--to-n-m	Convert frequency to n and width to m.
--output-file	Output file name (default: output.csv).

Examples

Generate a DWDM Table

To generate a DWDM table and save it as output.csv:

python wdm.py --generate-table --output-file output.csv

Convert n to Frequency and m to Width

To calculate frequency and bandwidth for a given n and m:

python wdm.py --to-freq-width 10 4

Convert Frequency to n and Width to m

To calculate n and m from a frequency and width:

python wdm.py --to-n-m 193.1 50

Output Format

The generated CSV file contains the following columns:

• n: Index relative to the center frequency.
• Frequency (GHz): Frequency in GHz.
• Wavelength (nm): Wavelength in nanometers.
• m=1 to m=12: Frequency ranges based on m values.
• ITU Channel: ITU channel name or N/A if no match is found.

License

This project is licensed under the MIT License. See the LICENSE file for details.

Contributing

Contributions are welcome! Feel free to submit issues or pull requests.