INCOHERENT

Sets the beam summing mode to incoherent. The syntax is:

INCOHERENT

The incoherent sum of any two beams is computed by summing the point-by-point intensity of the two beams, taking the square root to determine the amplitude, and setting the real part of the combined beam to this amplitude, and the imaginary part to zero. All phase information, including that of aberrations in the beam, is lost when performing incoherent sums. Therefore care should be taken when using this command. All subsequent beam sums will be incoherent unless a COHERENT command is used. See also COHERENT . The default sum mode is COHERENT.

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