Fiber Optic Transmission Loss Calculator

This calculator helps you calculate the transmission loss in fiber optic cables by comparing input and output power levels.

Input Parameters

Calculation Results

Calculation Results

Calculation Formula

Transmission Loss (dB) = 10 * log10( (Output Power / Input Power) )

Where:
- Transmission Loss is measured in decibels (dB)
- Input Power is the power entering the fiber optic cable
- Output Power is the power measured at the end of the cable

Fiber Optic Transmission Loss Calculator Usage Guide

Learn how to use the Fiber Optic Transmission Loss Calculator and its working principles

How to Use This Calculator

  1. Enter the input power of your fiber optic cable in milliwatts (mW)
  2. Enter the output power measured at the end of the cable in milliwatts (mW)
  3. Click the "Calculate" button to compute the transmission loss
  4. The result will be displayed in decibels (dB)

Understanding Transmission Loss

Transmission loss, also known as attenuation, measures how much optical power decreases as light travels through a fiber optic cable. It's typically expressed in decibels (dB) and is an important parameter in fiber optic communication systems.

Typical Transmission Loss Values

  • Standard single-mode fiber: 0.35 dB per kilometer
  • Standard multimode fiber: 3-5 dB per kilometer
  • Specialized low-loss fibers: as low as 0.2 dB per kilometer

This calculator helps you quantify the signal degradation in your fiber optic system, which is crucial for determining if you need to use amplifiers or other signal boosters in your network.