Article | June 5, 2023

What Is The Difference Between Absolute And Relative Laser Power Measurements?

GettyImages-481155380 laser in lab

It’s not uncommon to hear about “relative” and “absolute” measurements when talking about laser power measurements. Those are simply two different ways to approach and define the meaning of your readings. So, let’s sort this out.

Absolute Power Measurement

First, an absolute power measurement needs to come down to the basics of the known physics, so what actually is a watt? Once this question is answered, then, by a very rigorous process, you can determine what the actual value of a watt should be according to its definition. That being said, you still have to understand that even with a very strict protocol, the “True value’’ is always known only within a certain uncertainty.

access the Article!

Get unlimited access to:

Trend and Thought Leadership Articles
Case Studies & White Papers
Extensive Product Database
Members-Only Premium Content
Welcome Back! Please Log In to Continue. X

Enter your credentials below to log in. Not yet a member of Photonics Online? Subscribe today.

Subscribe to Photonics Online X

Please enter your email address and create a password to access the full content, Or log in to your account to continue.


Subscribe to Photonics Online

Gentec Electro-Optics, Inc.