An alternative approach to determine the spot-size of a multi-mode laser beam and its application to diode laser beams
Rakesh Kapoor PK Mukhopadhyay Jogy George SK Sharma
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An alternative approach is suggested to determine the spot-size of a multi-mode laser beam. It has been shown by simulations that the suggested approach can give the beam quality factor and characteristic radius with less than 5% error. Unlike the power content method, the proposed method is applicable to the beams even with diameter one tenth of the CCD size. The new approach has been applied to a multi-mode diode laser output and it is shown that the ABCD matrix analysis can be used for beam propagation, with the measured parameters of the laser.
Rakesh Kapoor1 PK Mukhopadhyay1 Jogy George1 SK Sharma1
Volume 96, 2022
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