Unstable resonator with slight misalignment

The following screen capture shows the analysis of an unstable resonator with a slight misalignment.

The upper right figure shows the beam shape at the ouput of the device as a false color display. A scrapper mirror has caused the center of the mirror to be obscured and the beam has higher intensity at the top because of the slight misalignment.

The upper left figure shows the output beam as an isometric display.

The lower right figure shows the far-field distribution.

The lower left figure shows the round-trip loss over the 30 passes leading to convergence.

The text input is displayed in a window at the middle left.