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Lens Calculator for ModeScan 1780

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Lens Calculator for ModeScan 1780

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In order to get proper results from the ModeScan 1780 beam profiler, it is necessary to understand which lens to use and where to locate it for particular parameters of the laser under test. The ModeScan 1780 calculator The calculator includes a worksheet that computes laser propagation parameters in the laser space and the test space based on the nominal laser beam specifications, including wavelength, beam exit diameter, and beam divergence, and the test lens focal length and position. The calculator optimizes the configuration to achieve the appropriate beam waist diameter and Rayleigh Range in the test space; the target values for these being >65um <~200um for the waist and 12.7mm for the Rayleigh Range.

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