BeamSquared

BeamSquared

Camera Based Beam Propagation Analyzer: M2
  • ISO compliant
  • Automatically measure your beam quality in under 1 minute
  • Tune your laser for best operation
  • Specifically developed for continuous usage
  • Unequaled accuracy using patented UltracalTM Calibration & long optical train
  • Automatic attenuation adjustment
  • Pulsed and CW for most beam diameters and powers
  • Compact and p
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BeamSquared

Specification

  • 266 - 1100nm, 1000-1700nm
  • Silicon CCD, InGaAs CCD
  • USB 2.0 and 3.0
  • 2.1mm x 5.3mm, 9.6mm x 7.6mm
  • 1928 x 1448, 320 x 256
  • 3.69µm x 3.69µm, 30µm x 30µm
  • 56 dB, 68dB
  • 26 fps, 100Hz
Need help finding the right beam profiler? Try our Beam Profiler Wizard

Software Editions

The BeamSquared automated M2 measurement system is available with the following configurations.
  • BSQ-SP300-A

    SP90443

    BeamSquared software, software license, SP300 USB 3.0 camera, optical train, automatic and manual operation, recommended for 266nm - 1100nm wavelengths.

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  • BSQ-XC-130-A

    SP90444

    BeamSquared software, software license, XC-130 USB 2.0 camera, optical train, automatic and manual operation, recommended for 900nm - 1700nm wavelengths.

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  • BSQ-A

    SP90445

    BeamSquared software, software license, and optical train no camera included. For use with compatible cameras purchased. Compatible camera must be return to factory for upgrade at no additional charge. If, upon inspection the camera does not meet specifications, a repair change will be applicable.

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  • BSQ-PY-M

    SP90410

    BeamSquared software and software license for manual M2 measurement using a Pyrocam camera (optical train and Pyrocam camera not included)

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Software

  • BeamSquared Software
    BeamSquared is our full-function software with an extensive set of ISO M2 measurements with the ease-of-use and flexibility that customers have come to expect.

Drawings

FAQ

Are the BeamSquared lenses interchangeable from one BeamSquared unit to another?

Because of the design of the lenses for the new BeamSquared, you will be able to use lenses on multiple systems. We have included an RFID chip on each lens which holds the information for that lens. We have also programmed the BeamSquared optical trains to have their calibration information stored in the device. With this improvement the configuration files for pairing optical trains and lenses are no longer required making lenses interchangable.

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Can any BeamGage camera be used with a BeamSquared system?

BeamGage systems and BeamSquared systems are separate and the cameras with them are not always interchangeable.  However, if you currently have an SP300, XC-130, or one of our Pyrocam IIIHR or IV cameras, you can upgrade these cameras to be compatible with the BeamSquared software (Note: Pyrocams are not compatible with the optical train). 
 
The cameras sold with BeamSquared systems are licensed for BeamGage Standard as an added benefit. This allows further analysis with the camera outside of the BeamSquared software.
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Does the BeamSquared internally provide all the necessary attenuation for operation with the direct laser beam?

Before allowing laser energy to enter the instrument, it is important to limit the beam intensity. Excessive laser energy may cause damage to the camera or the internal components of the BeamSquared optical train. 

 

Typically, a CCD camera sensor can be damaged at energy levels in excess of 1 mJ/cm² or at power levels greater than .15 mW/cm². Adjust these input limits downward based on the likely focused spot size resulting from your M² lens focal length. Beam splitters and/or filters may be used to attenuate the beam, but care must be used to prevent the introduction of distortions.

 

During an M² measurement operation, the peak energy density that reaches the camera will change, potentially over several orders of magnitude. This is a result of the camera effectively moving from a larger unfocused spot near the lens, into and through the focus at the waist, and then out again to an unfocused spot (see the Adjusting Brightness section in the manual). The Linear attenuators in the optical train will automatically adjust to accommodate these changes in beam intensity, so long as  the operator, has prudently selected the initial beam intensity. Thus, it is the operator's responsibility to attenuate the laser sufficiently to operate within the safe dynamic range of the BeamSquared system.

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When in the laser life cycle is the M2 measurement the most important?

M² measurement is important if the stability of your laser is important to your process. Taking M² measurements on a frequent basis allows you to see if your laser is stable from time to time. If the results of the M² measurement fluctuate and a noticeable change happens over time, this could help identify problems with consistency in the laser and help prevent negative results to your process where the laser is being utilized.

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Why can my M² unit have an M² measurement less than 1?

There are two common occurrences when M² results are less than 1.  The first and most common of these results from the operator entering the wrong wavelength value. In this case the results are often well below 1, in the .8-.9 range. The second most common cause is due to nominal accuracy tolerances. These are normal and expected. With a 5% M² tolerance results from ~.95 to ~1.05 are possible. Averaging runs will normally return a mean value to something > 1, but not always.

 

It has been suggested that if the M² results are computed to be < 1 we should display a 1 as the answer. However the algorithms in the BeamSquared software make computations and report results as the input settings and the beam samples dictate. This is done to provide useful information to the operator rather than to try and conceal the issue. 

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I have an M2-200s unit and a BeamSquared. Can I run both from the same computer?

The two units can not be run concurrently but it is possible to run both systems on the same computer. In order to have both run, however, you will need to have the most recent versions of both software packages. M2-200s software version 4.97 or later will be required to run the M2-200s if BeamSquared 2.0 or later is installed as well.

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Videos

BeamSquared BeamSquared
M2 BeamSquared for Analysis of Laser Beam Propagation M2 BeamSquared for Analysis of Laser Beam Propagation M2 BeamSquared for Analysis of Laser Beam Propagation

Now you can automatically measure laser beam quality (M2) in under one minute and tune your laser for best operation.

BeamSquared system is a compact and fully automated tool for measuring the propagation characteristics of CW and pulsed laser systems from the UV to NIR to Telecom wavelengths. You can also measure wavelengths above 1.8 microns, including CO2 and terahertz in manual mode (a bench set-up; without the automated optical train) with a Pyrocam IV or IIIHR.

BeamSquared, a compact and fully automated tool for measuring the propagation characteristics of continuous wave and pulsed laser systems from the UV to NIR to Telecom wavelengths.