finesse.components.node.OpticalNode.q

property OpticalNode.q

Beam parameter value at this node.

Getter:

Returns the beam parameter at this node. If the beam parameters in the tangential and sagittal planes are different then it returns a tuple of the two parameters.

Setter:

Sets the beam parameter at this node. If the argument provided is a 2-tuple then the parameter is set astigmatically for the node.