Optical Link Attenuation Calculator

Professional Fiber Optic Link Design & Analysis

  • Link Design
  • Advanced
  • User Guide
How to Use This Tool

This calculator helps you design and analyze fiber optic links by calculating total attenuation and power budget.

Step-by-Step Guide

1. Configure Basic Parameters

Select the operating wavelength and fiber type. Enter the total link distance in kilometers.

2. Add Link Components

  • Connectors: 0.3-0.5 dB typical loss
  • Fusion splices: 0.05-0.1 dB typical loss
  • Mechanical splices: 0.1-0.3 dB typical loss
  • WDM components: 0.5-3.0 dB typical loss
  • Patch panels: 0.5-1.0 dB typical loss

3. Enter Power Levels

Enter transmitter output power and receiver sensitivity from transceiver datasheets.

4. Set Design Margin

Typical margin values range from 3-6 dB depending on application criticality.

Pro Tips
  • Use higher margins (5-6 dB) for critical links
  • Verify component losses with manufacturer specs
  • Consider repair splice allocations for long-haul links
  • Use Monte Carlo analysis for statistical reliability

Results

Total Link Attenuation

0.00 dB
Fiber Attenuation: 0.00 dB
Component Losses: 0.00 dB
Design Margin: 0.00 dB
Power Budget: 0.00 dB
Power Margin: 0.00 dB

Statistical Analysis

Worst Case (95%): 0.00 dB
Statistical Margin: 0.00 dB
Reliability: 99.99%

Link Visualization