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Wavefront analysis of Aberrated Laguerre-Gaussian Beam using Shack-Hartmann Wavefront Sensor

Wavefront analysis of an aberrated Laguerre-Gaussian beam generated using LC-SLM and after passing through a a Pseudo Random Phase Plate(PRPP) is carried out using Shack Hartmann wavefront sensor. The Zernike polynomials coefficient are calculated and compared with and without the L-G beam passing through a PRPP (mimicking atmospheric turbulence). It is found that the aberrations like piston and tilt have a greater value under the influence of turbulence.