![](/assets/images/picto-drapeau-france-3a76576a5d60a512053b4612ab58dae5.png)
5. Laser power/energy measurement
5.1 Types of laser measurements
A brief overview of the different types of detectors separates them into two distinct groups: thermopiles for power measurements, and pyroelectric detectors for energy measurements.
As their name suggests, thermopiles operate on the basis of heat flow, with a variation in temperature on the sensing surface being translated into a power reading. Pyroelectrics also react to the heat generated by a laser pulse, but operate in a very different way. Pyroelectrics are basically made up of a crystal containing permanent dipoles, whose thermal response is very rapid. Unlike thermopiles, which heat up slowly and give an accurate measurement once their temperature has stabilized, a pyroelectric crystal...
Exclusive to subscribers. 97% yet to be discovered!
You do not have access to this resource.
Click here to request your free trial access!
Already subscribed? Log in!
![](/assets/images/logo-eti-286623ed91fa802ce039246e516e5852.png)
The Ultimate Scientific and Technical Reference
This article is included in
Optics and photonics
This offer includes:
Knowledge Base
Updated and enriched with articles validated by our scientific committees
Services
A set of exclusive tools to complement the resources
Practical Path
Operational and didactic, to guarantee the acquisition of transversal skills
Doc & Quiz
Interactive articles with quizzes, for constructive reading
Laser power/energy measurement
Bibliography
Events
Exhibitions
Espace Laser Paris
Exhibition of laser equipment and techniques for industry
Opto
European trade fair for optical solutions
...Standards and norms
- Acceptance tests for Nd:YAG laser beam welding machines – Machines with fiber-optic beam transport – Part 1: laser assembly (classification index: A89-702-1). - NF EN ISO 22827-1 - 01-06
- Optics and photonics – Lasers and laser-related equipment – Vocabulary and symbols (classification index: S10-105). - NF EN ISO 11145 - 10-08
- Acceptance testing of quality laser beam welding and cutting machines CO2 – Part...
Exclusive to subscribers. 97% yet to be discovered!
You do not have access to this resource.
Click here to request your free trial access!
Already subscribed? Log in!
![](/assets/images/logo-eti-286623ed91fa802ce039246e516e5852.png)
The Ultimate Scientific and Technical Reference