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Video

BeamGage Tutorial: Spot Size and Divergence

Learn how to measure a lasers spot size and divergence in this BeamGage tutorial.

Blog Post

The Focal Spot Size Calculator

It is not uncommon in working with lasers to need to focus the laser beam down. When using a lens, our first impulse is to fall back on the thinlens equation we learned in geometric …

Blog Post

Measure Laser Spot Size & Power Density

If you read our article from last week, you're already well aware that additive manufacturing can be used to create parts that are impossible to manufacture in any other way.However, …

Blog Post

Measuring Laser Focus Spot Size in an Industrial Medical Device Application

This step-by-step tutorial shows how to set up a camera-based beam profiling system on an industrial single-pulse laser welding system, demonstrates how to simultaneously analyze a …

Blog Post

Can You Really Measure Laser Beam Quality (M Squared) in Real Time?

M-Squared is arguably the single most important factor when determining the potential efficiency of your laser.However, it can be a pain to measure. Since the beam quality can be calculated …

Technical Note

Mode-Field Diameter and “Spot Size” Measurements of Lensed and Tapered Specialty Fibers

The Mode-Field Diameter (MFD) and “spot size” of an assortment of lensed and tapered specialty fibers were determined from far-field and near-field measurements.

Blog Post

Laser Focal Spot Size Calculator

Use this calculator to get the size and location of your Gaussian laser beam waist at focus, as well as the Rayleigh range.

Technical Article

Which Camera Technologies Work Best for Beam Profiling Applications

It seemed that everyone had their own “correct method” for how a laser beam should be characterized. The two measurements requested most frequently were Beam Width and Divergence. A …

Blog Post

Laser Cutting and Welding with High Quality (Dagmar/ Effy)

High power,industrial laser systems are a large investment. Factories purchase and installlaser systems to improve their production time or quality, usually both. Theselasers typically …

Blog Post

The Perfect Tool for Selective Laser Melting (SLM) System Diagnostics

An aerospacecompany contacted us recently about their new metal powder bed selective lasermelting (SLM) system. They were searching for reliable test and measurementequipment they could …

Blog Post

Laser Beam Optics: Calculating Focal Spot of a Gaussian Beam

Whether you’re in the lab or a job shop, you need your laser beam to be a specific size to do the job.Getting your laser beam to that size is not always simple. In fact, the more I …

Technical Article

Scanning Slit vs Camera-Based Beam Analyzers

In part 1, we discussed camera technologies that are available for covering various wavelengths. There are similar options for scanning slit profilers.

Blog Post

What’s M-Squared, again?

Here’s a surprising statistic: Nine out of ten laser technicians have no idea what M² is.Most laser beam characteristics are easy to put your finger on: laser beam width, position and …

Blog Post

Non-Contact Beam Profiling of 100 kW and Above: How Can This Work?

I've mentioned BeamWatch before.It's an innovative technique for profiling high power lasers (1 kW and up).I've even touched on the underlying Rayleigh scattering effect that makes …

Blog Post

Measuring Laser Power and Energy With Ophir’s Laser Measurement Meters And Sensors: How To Learn More?

Ophir sensors and meters can measure laser energy, power output, pulse repeatability, and frequency from laser sources ranging from Ultraviolet to Far Infra-red and everything in between.Watch …

Blog Post

The Focal Length Divergence Measurement Method

The Focal Length Divergence measurement method is based upon the beam width of a focused beam’s spot size and the focal length of the focusing optic.The Focal Length Divergence method …

Blog Post

Overcoming the Challenges of Measuring High Power NIR Lasers

High power laser applicationsHigh power laser application has significantly increased in recent years due to new production techniques that enable cheaper manufacturing and operating …

Blog Post

Can You Measure Laser Power with the Sensor on an Angle?

Glad you asked.Like many answers to many questions, the answer here is “sometimes yes, sometimes no.”To explain this, we must look at each of the three main types of laser power/energy …

Blog Post

What’s Harder to Measure:A Short Pulsed Laser or a CW Laser?

On the one hand, CW lasers will almost always have a higher average power. That means it’s harder for the power sensor head to cool down.This is not an issue with most short pulsed …

Blog Post

Improve Your Laser Marking Process

Lasers are amazing.They can cut or weld, drill or solder. A very general application of laser materials processing is called laser marking. This can refer to a host of processes, like: …