How one can measure the beam diameter along different angles of orientations

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Rajeev 2023-2-2

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回答： Muskan 2023-3-24

Usually we calculate beam diameter of a beam along 0 (x-axis) or 90 (y-axis) degree of the beam profile. However, in the case of elliptical beam, its different at different directions in the beam profile. How one can measure the beam diameter along different angles of orientations in the beam profile?

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Answer 1

Muskan 2023-3-24

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Hi Rajeev,

As per my understanding of the question, to measure the beam diameter along different angles of orientation in the beam profile in MATLAB, you can follow the following steps:

Load your beam profile data into MATLAB and define the center of your beam profile. You can use the “centroid” function in MATLAB to find the center of your beam profile.
Choose the orientation angles for which you want to measure the diameter of the beam.
Measure the distance between the beam profile’s center and its edge in the direction of each angle.
Calculate the beam diameter at each angle by doubling the distance you measured in step iii.
Repeat for each angle of orientation you choose.