An alternative approach to determine the spot-size of a multi-mode laser beam and its application to diode laser beams |
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Authors: | Rakesh Kapoor PK Mukhopadhyay Jogy George SK Sharma |
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Affiliation: | (1) Solid State Laser Laboratory, Center for Advanced Technology, 452 013 Indore, India |
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Abstract: | 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. |
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Keywords: | Multi mode beam M 2 parameter diode laser |
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