BeamPro large area Laser Beam Profiler

Beam profiler for laser beam diameters greater than 7 mm

Femto Easy BeamPro beam profilers are available with the largest sensor area for the best accuracy in measuring collimated laser beams up to 25 mm without additional optics.

Large beam aperture of 25 mm


Si-based for UV-VIS


InGaAs-based for SWIR


Large area sensors

Measure directly the largest laser beams up to 25 mm in diameter

Femto-Easy-Beamprofiler-BeamPro-One-Inch-2

Ideal for large or diverging laser beams

Leverage the largest area to directly measure large collimated or diverging laser beams.

Other BeamPro models


Technical Specification

Femto Easy’s BeamPro laser beam profiler comes with a user-friendly and powerful software at no additional costs. Compare the technical specifications and discover your favorite model with a large area sensor.

BeamPro modelsBP8.7BP11.7BP13.9BP14.10BP11.11BP11.11+BP12.12BP12.12+BP25.16BPΦ25
Sensor size (mm)


8.7 x 7.1 11.2 x 7.013.1 x 8.713.8 x 10.311.2 x 11.211.2 x 11.212.3 x 12.312.3 x 12.325.0 x 16.1Φ 25.0
Sensor formatLLLLLLLLL+L+
2/3"1/1.2"1"1.1"1"1"1.1"1.1"4/3"Φ
Spectral range (nm)375 - 1100
190 - 1100 with UV option
375 - 1100
Resolution2456x2054
5.0 Mpx
1920x1200
2.3 Mpx
5472x3648
20.0 Mpx
4096x3000
12.3 Mpx
2048x2048
4.2 Mpx
2056x2056
4.2 Mpx
2256x2256
5.1 Mpx
4512x4512
20.3 Mpx
1920x1200
2.3 Mpx

2048x2048
4.2 Mpx
Pixel size (µm)3.455.862.403.455.505.485.482.7413.4812.65
Shutter typeGlobalGlobalRollingGlobalGlobalGlobalGlobalGlobalGlobalGlobal
Minimum beam diameter (Φ FWHM, µm)117291217292828146863
Maximum acquisition frame rate (fps)236471836801818184780
Exposure time min27 µs20 µs67 µs327 µs40 µs20 µs20 µs20 µs20 µs40 µs
Exposure time max1 s
Dynamic (dB)73707273587171717058
Price■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■
Sensor typeCMOS
Bit depth12 / 16 (HDR Option)
PC InterfaceUSB 3.1
SynchronizationYes (with the Trigger option)
Dimensions (mm)36x39x4636x39x4636x39x4636x39x4636x39x4637x30.5x23.737x30.5x23.737x30.5x23.737x40x5537x40x55
1 The minimum beam diameters are specified for a precision of measurement better than 1%. Smaller beam diameter can be measured but the error will progressively increase.

2 Depending on the type of calculation, frame rate may vary.

3 Due to rolling shutter, the actual minimum exposure time to properly capture the whole beam will be limited by the laser beam size (in case of single-shot measurement) or by the laser repetition rate. For single-shot measurement : the larger the beam, the longer the required minimum exposure time. Otherwise, the slower the repetition rate, the longer the required minimum exposure time.
 SWIR 10.8SWIR 13.10SWIR 21.17
Sensor size (mm)



9.6 x 7.712.8 x 10.221.0 x 17.0
Sensor formatLLL+
1"1"APS-C
Spectral range (nm)900 - 1700
Resolution640 x 512
0.3 Mpx
1280 x 1024
1.3 Mpx
640 x 512
0.3 Mpx
Pixel size (μm)151033
Shutter typeGlobal
Minimum beam diameter (Φ FWHM, μm)17550270
Maximum acquisition frame rate (fps)223060230
Exposure time min10 µs
Exposure time max 50 ms
Dynamic (dB)636163
Price■ ■ ■ ■■ ■ ■ ■■ ■ ■ ■
Sensor typeInGaAs
Bit depth14
PC InterfaceUSB 3.1
SynchronizationYes (with the Trigger option)
Dimensions (mm)46 x 46 x 5758 x 58 x 7046 x 46 x 57
1 The minimum beam diameters are specified for a precision of measurement better than 1%. Smaller beam diameter can be measured but the error will progressively increase.

2 Depending on the type of calculation, frame rate may vary.

Optional Features

Windowless: Removal of the BeamPro sensor window to avoid potential interferences

UV extension: Increases the BeamPro wavelength range to the UV region, down to 190 nm

Additional ND filters:  The default BeamPro configuration includes one ND filter (ND4). Additional filter with different specifications can be ordered

High Dynamic Range: Software mode to increase the dynamic of the BeamPro signal acquisition from 12 to 16 bits. Not compatible with pure single-shot measurement as 2 images are necessary to build one beam profile image

Trigger: Synchronization of the BeamPro detection to an external signal for accurate laser single pulse measurement


Beam profiler software STAR

  • Live extraction of beam properties, even with resolutions larger than 20 Mpx
  • Several parameters and methods supported (ISO calculation included)
  • Enhanced background & hot pixels treatment for optimum dynamic and signal-to-noise ratio
  • Client / Server interface, allowing remote control through network
  • Advanced logging and permanent access to the 10 previous acquisitions
  • Live comparison with up to 10 different reference measurements
  • 1-click installation, completely configurable, export assistant