Control

Inputs / Description

Defaults

Ray Directions

Type

Drop down menu with the available ray direction types.  Select Laser Diode Beam.

Single Direction (plane wave)

Parameters

X ang

Divergence angle in the X direction whose interpretation is given by Angle Type.  Must be a value greater than 0 and less than 90.

10

Y ang

Divergence angle in the Y direction whose interpretation is given by Angle Type.  Must be a value greater than 0 and less than 90.

10

Ang Type

Interpretation of the X Ang and Y Ang values.  Notice that specifications can be in either field amplitude or field power profile.

Half width at 1/e amplitude

X samp Pts

Number of sample points across the beam in the X direction.  The total number of rays generated by the source is related to both the number of sample points and the divergence angle, with the number of sampling points being used as a guide to FRED's internal calculations.

8

Y samp Pts

Number of sample points across the beam in the Y direction.  The total number of rays generated by the source is related to both the number of sample points and the divergence angle, with the number of sampling points being used as a guide to FRED's internal calculations.

8

X focus

Offset of the X focal point from the source position in system units.

0

Y focus

Offset of the Y focal point from the source position in system units.

0

OK

Accept settings and close the dialog box.

Cancel

Discard settings and close the dialog box.

Apply

Apply settings and keep the dialog box open.

Help

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