A wavefront sensor wavefront analyzer using Sharck Hartmann technology is used for analyzing laser beams and measuring their wavefront parameters. It can measure beam parameters such as M ^ 2, laser spot diameter, waist position, and divergence angle, and the software can also measure the system's PSF and MTF.
At this moment, the parameters of the Hartmann wavefront sensor wavefront analyzer are as follows:
Specification:
Range of phase measurement - up to 15μm
Accuracy of measurements - λ/100 (RMS)
Input light beam diameter - 4...100 mm and more
Number of working sub-apertures: from 400
Working Wavelength Range: 400nm 1100nm
Acquisition Frequency / Frame Rate: up to 60 Hz
Pulsed & CW laser beam diagnostic
The hardware includes:
Lenslet array
Monochrome CCD/CMOS camera (IEEE 1394)
IEEE 1394 Cable (6pin-6pin)
Optionally:
Resizing lens or telescopic system
Neutral density optical Filters in holder
Source of reference wavefront (collimator, fiber-coupled laser for one
wavelength, holder)
The software includes:
Wavefront Reconstruction for Circular pupil or Polygonal Mask
Measurement of P-V
Definition of RMS
Shark r Page 1 of 2
Shark-Hartmann Wavefront
-Hartmann Wavefront Senso
Expansion of aberrations to Seidel and Zernike polynomials (tilts, defocus,
astigmatisms, etc.)
Fringe Representation, 2D & 3D Wavefront
Reconstruction of intensity distribution
Estimation of the Beam Quality Factor M²; Beam Characterisation Parameters:
laser beam diameter, beam waist & location, Beam Divergence
PSF, MTF