Oscillator-Reprate Calculator v2.2

(Click to view interactive diagram in the web app)

🚀 Overview

Oscillator-Reprate Calculator is a specialized precision tool designed for laser physicists and optical engineers. It allows for the rapid calculation of fiber laser oscillator properties, specifically focusing on cavity frequency, total time, and input/output fiber lengths required for repetition rate doubling.

Unlike basic calculators, this tool accounts for the different refractive indices of fiber and air, ensuring high-accuracy results for free-space and fiber-coupled segments.

✨ Features

• Precision Calculation: Computes total cavity time (ns) and frequency (MHz) based on individual fiber segment lengths (mm) and free-space paths.
• Refractive Index Support: Input specific refractive indices ($n_{glass}$ and $n_{air}$) for accurate speed of light calculations ($c/n$).
• Reference Table: Built-in quick reference for common fiber types (CorActive, Fujikura, nLight).
• Repetition Rate Doubling: Automatically calculates the required fiber lengths to achieve $2x, 4x, 8x, 16x$ repetition rates.
• Modern Web UI: A clean, dark-themed responsive interface with real-time updates.
• Zero Installation: Runs entirely in the browser as a single-page application.

🛠️ Usage

1. Open the App: Simply open index.html in any modern web browser.
2. Configure Constants:
   • Enter the Refractive Index for your fiber (e.g., 1.45).
   • Enter the Refractive Index for air (e.g., 1.0002).
3. Input Lengths:
   • Enter the lengths of your fiber segments in millimeters (mm).
   • Enter the free-space path length in millimeters (mm).
4. View Results:
   • Total Time: The round-trip time of the optical pulse in nanoseconds.
   • Cavity Frequency: The fundamental frequency of the oscillator in MHz.
5. Multiplier: Check the bottom table for the exact fiber lengths needed to multiply the repetition rate.

📦 Installation & Release

This project is now a Web Application. You do not need to install Python or any dependencies.

Running Locally

1. Clone the repository:

   git clone https://github.com/Alptknt/Reprate_Calculator.git

2. Open index.html in your browser.

Releases

Download the latest version from the Releases Page.

• v2.0: The complete Web Application overhaul (HTML/CSS/JS).