BeamPro large area Laser Beam Profiler

Beam profiler for laser beam diameters greater than 10 mm

Femto Easy BeamPro beam profilers are available with the largest sensor area for the best accuracy in measuring collimated laser beams up to 30 mm without additional optics.

Large beam aperture of 30 mm


Si-based for UV-VIS


InGaAs-based for SWIR


Large area sensors

Measure directly the largest laser beams up to 30 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.

ND filters 2

Flexible ND filters

OD3 filter is part of the BeamPro package.

Order additionnal ones with different attenuation if needed. Delivered with a pair of individual protection caps.

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 modelsBP12.10BP11.10BP11.11BP25.16BP25.16 UVBPΦ25BPΦ25 UV
Sensor size (mm)




12.4 x 9.811.3 x 10.211.2 x 11.225.0 x 16.125.0 x 16.1Φ 25.0Φ 25.0
Sensor formatLLLL+L+L+L+
1"1"1"4/3"4/3"ΦΦ
Spectral range (nm)375 - 1100
190 - 1100 with UV option
375 - 1100 200 - 750375 - 1100200 - 750
Resolution2592x2048
5.3 Mpx
4508x4096
18.4 Mpx
2048x2048
4.2 Mpx
1920x1200
2.3 Mpx

1920x1200
2.3 Mpx

2048x2048
4.2 Mpx
2056x2056
4.2 Mpx
Pixel size (µm)4.802.505.5013.4813.4812.6512.65
Shutter typeGlobalGlobalGlobalGlobalGlobalGlobalGlobal
Minimum beam diameter (Φ FWHM, µm)124122968686363
Maximum acquisition frame rate (fps)273208047478018
Exposure time min52 µs500 µs40 µs20 µs20 µs40 µs20 µs
Exposure time max0.5 s1 s
Dynamic (dB)56645870705871
Price■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■
Sensor typeCMOS
Bit depth12 / 16 (HDR)
PC InterfaceUSB 3.1
SynchronizationYes (with the Trigger option)
Dimensions (mm)36x39x4636x39x4636x39x4637x40x5537x40x5537x40x5537x40x55
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 13.10VSWIR 19.15SWIR 22.18SWIR 38.30
Sensor size (mm)




12.8 x 10.219.3 x 15.322.0 x 17.638.4 x 30.6
Sensor formatLL+L+L+
1"1.5"APS-CFull Frame
Spectral range (nm)900 - 1700400 - 1700900 - 1700900 - 1700
Resolution1280 x 1024
1.3 Mpx
1296 x 1032
1.3 Mpx
640 x 512
0.3 Mpx
1280 x 1024
1.3 Mpx
Pixel size (μm)10153330
Shutter typeGlobal
Minimum beam diameter (Φ FWHM, μm)150200500500
Maximum acquisition frame rate (fps)26012823060
Exposure time min10 µs20 µs10 µs10 µs
Exposure time max500 ms
Dynamic (dB)61566361
Price■ ■ ■ ■■ ■ ■ ■■ ■ ■ ■■ ■ ■ ■
Sensor typeInGaAs
Bit depth14121414
PC InterfaceUSB 3.1
SynchronizationYes (with the Trigger option)
Dimensions (mm)58 x 58 x 7033 x 40 x 4646 x 46 x 5758 x 58 x 80
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 (OD3). Additional filter with different specifications can be ordered (OD1 to OD4). Delivered with a pair of individual protection caps

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