Cinsquare laser beam quality
Cinsquare laser beam quality
CinSquare M2 tool
M2 measurement with RayCi Pro
CinSquare M2 measurement system
Cinsquare laser beam quality
Laser Beam Quality Measurement System | CinSquare M² Tool - Image 2
Laser Beam Quality Measurement System | CinSquare M² Tool - Image 3
CinSquare M2 measurement system
Cinsquare laser beam quality
CinSquare M2 measurement system

Laser Beam Quality Measurement System | CinSquare M² Tool

Spectral Range

UV, VIS, NIR & SWIR

Measurement time

~2 minutes or 30s (fast scan)

Environment

Lab or industrial/production

Accuracy

2-3% typical(M2, BPP), 3-5%(waist size, divergence, waist location, Rayleigh length)

Customization

Custom system based on laser specs

Software

RayCi Pro included

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CinSquare M² Measurement Tool

The CinSquare is a fully automated M² measurement system designed for measuring the beam quality across both CW and pulsed laser systems spanning from UV to SWIR wavelengths. Comprising a fixed focusing lens and a motorized translation stage housing the camera-based CinCam CCD/CMOS/InGaAs beam profiler, this system guarantees operational reliability and robustness, making it suitable for continuous use in industrial, scientific, and research environments.

How does the M² measurement system work?

Adhering to ISO 11146-1/2 standards, the CinSquare system measures the complete beam caustic, determining essential parameters such as M², waist position, and divergence relative to the reference plane. For enhanced usability, the system incorporates two alignment mirrors to ensure precise laser beam positioning and a filter wheel for incremental beam attenuation adjustments.

The CinSquare M-squared measurement tool offers customization options tailored to specific wavelengths, beam sizes, and M² values, accommodating diverse application requirements.

CinSquare M2 measurement system

How is M² measured?

Siegman’s proposal became popular because of its simplicity, but experimentally it isn’t so straightforward, and some uncertainties arise from these principles. For example, if you want to measure the waist radius in the lab, how can you be sure that your measurement device is positioned exactly at the focus?

And how far do you need to go to be in the far field to measure the divergence? Are these two data points enough? The folks at the International Organization for Standardization, or ISO, decided to put an end to all this confusion, so they wrote a norm explaining how to measure and calculate M2, M2, properly: ISO 11146.

The ISO norm explains a method to calculate M² from a set of beam diameter measurements, in a way that minimizes sources of error. Here are the main steps:

  • Focus it with an aberration-free lens
  • Use the regression equations detailed in the norm to fit a hyperbola to your data points for both the X and Y axes. This improves the accuracy of the calculation by minimizing measurement error.
  • From this fit, extract the values for θ, w0, R, and M², for each axis.

The ISO norm also states a few extra rules about the measurement of diameters (especially when using array sensors such as CCD or CMOS sensors):

  • Use a region of interest of 3 times the diameter
  • Always remove the background noise before taking a measurement

CinSquare is customizable for specific wavelengths, beam sizes and M² values.

Learn more about M² measurement and laser beam profiling applications with our application page.

CinSquare M² Measurement Tool

The CinSquare is a fully automated M² measurement system designed for measuring the beam quality across both CW and pulsed laser systems spanning from UV to SWIR wavelengths. Comprising a fixed focusing lens and a motorized translation stage housing the camera-based CinCam CCD/CMOS/InGaAs beam profiler, this system guarantees operational reliability and robustness, making it suitable for continuous use in industrial, scientific, and research environments.

How does the M² measurement system work?

Adhering to ISO 11146-1/2 standards, the CinSquare system measures the complete beam caustic, determining essential parameters such as M², waist position, and divergence relative to the reference plane. For enhanced usability, the system incorporates two alignment mirrors to ensure precise laser beam positioning and a filter wheel for incremental beam attenuation adjustments.

The CinSquare M-squared measurement tool offers customization options tailored to specific wavelengths, beam sizes, and M² values, accommodating diverse application requirements.

CinSquare M2 measurement system

How is M² measured?

Siegman’s proposal became popular because of its simplicity, but experimentally it isn’t so straightforward, and some uncertainties arise from these principles. For example, if you want to measure the waist radius in the lab, how can you be sure that your measurement device is positioned exactly at the focus?

And how far do you need to go to be in the far field to measure the divergence? Are these two data points enough? The folks at the International Organization for Standardization, or ISO, decided to put an end to all this confusion, so they wrote a norm explaining how to measure and calculate M2, M2, properly: ISO 11146.

The ISO norm explains a method to calculate M² from a set of beam diameter measurements, in a way that minimizes sources of error. Here are the main steps:

  • Focus it with an aberration-free lens
  • Use the regression equations detailed in the norm to fit a hyperbola to your data points for both the X and Y axes. This improves the accuracy of the calculation by minimizing measurement error.
  • From this fit, extract the values for θ, w0, R, and M², for each axis.

The ISO norm also states a few extra rules about the measurement of diameters (especially when using array sensors such as CCD or CMOS sensors):

  • Use a region of interest of 3 times the diameter
  • Always remove the background noise before taking a measurement

CinSquare is customizable for specific wavelengths, beam sizes and M² values.

Learn more about M² measurement and laser beam profiling applications with our application page.

1

Spectral range: UV, VIS, NIR & SWIR
2

Accuracy: 2-3% typical (M2, BPP)
3

Software: RayCi Pro included
4

Customization: custom systems based on laser specs
5

Measurement time: ~2 min or 30s (fast scan)
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