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Fig. 5. (Color online) (a) Variation in laser mode size as a function of the distance from the focusing lens measured by the knife edge scanning method (solid line is fitted result). Small Figure inserted in the graph is Nd:YVO4 laser beam profile. (b) A setup for beam parameter product measurement by using lenses with focal lengths of f1 and f2.
New Phys.: Sae Mulli 2023;73:304~310