Four-Wave Lateral Shearing Interferometry System for Transient Wavefront Measurement

A complete complex amplitude reconstruction method for the determination of the laser beam quality factor M based on the multiple exposure of a quadriwave lateral shearing interferometer (QWLSI) is presented. The theoretical analysis and simulation of the influence of the information in the small signal area on the calculation of the M factor is provided. The experimental results demonstrate that the new method can be an accurate means to measure the M factor. The proposed method can avoid the influence of phase inaccuracy in the small signal area of the interferogram, during the measurement of the M factor.

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Four-Wave Lateral Shearing Interferometry System for Transient Wavefront Measurement

Cited by 2 publications

References 0 publications

Analysis of laser M2 determination in a quadriwave lateral shearing interferometer with CCD vertical blooming

Analysis of laser M2 determination in a quadriwave lateral shearing interferometer with CCD vertical blooming

Determination of the laser beam quality factor (M^2) by stitching quadriwave lateral shearing interferograms with different exposures

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