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Laser beam


Profilometers and Autocorrelators

Laser beam analysers

Laser beam profilometer:

A laser beam profilometer is used to measure the shape and characteristics of the laser beam. It is mainly used in the analysis of beam parameters such as beam diameter, focal length, intensity, energy profile, etc. A laser beam profilometer is useful in the calibration and characterization of lasers and in the optimization of optical systems.


The autocorrelator is a tool used in the study of ultra-short laser pulses, especially those with a duration of femtoseconds (10^-15 seconds) or picoseconds (10^-12 seconds). Its main task is to measure the duration of laser pulses and the temporal characteristics of the beam. Based on the autocorrelation results, the pulse duration and time characteristics such as the pulse intensity versus time curve can be determined.

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APE's Ultrafast Autocollerator is used to characterize ultrafast laser pulses. Equipped with a built-in two-photon absorption (TPA) detector, this autocorrelator is ideal for measuring ultrafast femtosecond and picosecond laser pulses with wavelengths from 700 to 1100 nm.

The highly sensitive TPA detector allows ultrafast laser pulses to be measured with high sensitivity, eliminating the need to tune the SHG nonlinear crystal angle. APE's ultra-fast autocollerator is designed in a compact package and can be mounted on an adjustable optical mount for easy incorporation into any ultra-fast optical setup. Each autocorrelator comes with a built-in TPA detector, a USB-based controller, ready-to-use data acquisition software, and TCP/IP-based software with a subset of SCPI-based commands that allow users to program automatic measurement procedures.

APE's ultrafast autocorrelator is calibrated to NIST (U.S. National Institute of Standards and Technology) measurement standards.

  • TPA detector with sensitivity >0.1W2 @ 700 - 1100nm

  • Includes a controller with a USB interface and ready-to-use data acquisition software

  • Compact design and wavelength matching without the need for tuning

  • Perfect for ultrafast low and high repetition rate lasers


  • Wavelength range (nm): 700 - 1100

  • Computer interface: USB

  • Dimensions (cm): 10.2 x 10.2

  • Measurable pulse duration: 50 - 3500fs

  • Scanning range: 150fs - 15ps

  • Sensitivity (W2): <0.1

  • Repetition rate (Hz): >300

  • Maximum input power/energy: 300 mW/5µJ

  • Polarization of the input beam: linear/horizontal

  • Delay resolution: <0.001% scan range delay

  • Linearity: <1%

  • Measurement mode: collinear intensity

  • SHG Phase Matching: Not required

  • Trigger mode: 300 Hz - 50 kHz

  • Entry hole (mm): 6

  • Fitting procedure: Gaussian, Sech2, Lorentzian

  • Calibration: NIST certified and traceable calibration

Edmund Optics® Beam Profilers

  • High resolution for accurate small beam profile measurements

  • Large area sensor for large beam profiling

  • USB 3.0 for the fastest transfer speeds

Edmund Optics® profilometers are designed to measure a wide range of laser beam sizes, providing information to optimize laser system performance. These laser beam profilers are equipped with high-resolution, large-area sensors to ensure accurate profiling of both small and large laser beams.

Available in two sizes, the beam profiles are threaded for 1” x 32 TPI mounting, making them compatible with C-Mount accessories. Edmund Optics beam profilers feature an external trigger to synchronize the camera with the pulsed laser, and are USB 2.0 and 3.0 compatible for industry-leading transfer speeds. Each beam profiler also comes with intuitive beam analysis software with multiple display options (2D, 3D and XY), as well as multiple control tools such as background subtraction and Gaussian matching.


  • Wavelength range (nm): 350 - 1150

  • Included filters: neutral density, OD 4.0 (x1)

  • Mount: 1" x 32 TPI (C-mount)

  • Pixel size, H x W (μm): 5.5 x 5.5

  • Pixels (H x W): 2048 x 2048 (4.2 megapixels)

  • Detection area, height x width (mm): 11.3 x 11.3

  • Computer Interface: Displays: 2D, 3D, XY and beam tracking diameter. Definitions: D4σ, 1/e2 (13.5%), FWHM (50%), 86% iris, Buffer Control: Open File, Save Current Data, Save All Data, Previous/Next Image, Clear, Animation, Report: 2D , 3D, XY, Measures and parameters. Print Screen tool in BMP (2D and 3D)

  • Input beam requirements: Minimum 55 μm (10 x 10 pixels)

  • Software: USB included

PROFILOMETR Coherent® Lasercam™   

The Coherent® Lasercam™ Beam Profiler features excellent signal-to-noise ratio and linear response, enabling accurate measurements of pulsed and CW laser beam dimensions and uniformity.

  • 12-bit and 14-bit digital USB 2.0 options

  • High sensitivity and dynamic range

  • Intuitive BeamView™ software included

  • The new BeamView™ 4.4 interface software supports TCP/IP control and the NI LabVIEW™ library suite, enabling efficient and seamless integration of beam profiling into any application.

Examples of analysis functions that can be performed on the acquired beam images include:

  • position of the center of gravity of the beam, position of the peak intensity of the beam

  • pointing stability

  • total relative power/energy in the beam

  • peak power/energy density of the beam

  • beam divergence

  • ellipticity of the beam

  • beam intensity

  • homogeneity

  • Gaussian fit

  • beam diameter/width based on second moments

  • user-selected percentage of peak/total energy.


  • Mount: C-Mount

  • Operating Temperature (°C): -20 to 60

  • Dimensions (mm): 68.1 x 79.3 x 40.9 (with LDFP)

  • Weight (g): 110 (without cable)

  • Spectral Range: 300 - 1100nm (400 - 1100nm with LDFP)

  • Signal to Noise S/N Ratio (dB): >60

  • Gain (dB): Gain is factory set for optimum linear dynamic range, not user adjustable

  • Gamma: 1.00

  • Exposure Time: Fixed at 10ms

  • Frame Rate: 27Hz (Live Mode), 10Hz (with calculations)

  • Damage Threshold, By Design: 32 mJ/cm2 @ 1.06μm without Low Distortion Faceplate

  • Damage Threshold, Pulsed: 32 mJ/cm2 @ 1.06μm without Low Distortion Faceplate

  • Peak Intensity: Recommended: 75-95% of camera saturation

  • Pulse Trigger: TTL, rising or falling edge

  • Dimensional Accuracy: ±1% (typical), ±5% max (over entire spectral and dimensional range)

  • Peak Noise (nW/cm2): 24 (at 632.8nm)

  • Operating System: Windows®

Camera Sensor Format 

 Beam Diameter, 1/e2 (mm) 

 Sensing Area, H x V (mm) 

 Stock Number 


Recommended: 0.15mm min, 4.0mm max

5.9 x 4.8



Recommended: 0.20mm min, 6.0mm max

8.3 x 6.6



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