finesse.components.beamsplitter.Beamsplitter.abcd21y

property Beamsplitter.abcd21y

Numeric ABCD matrix from port 2 to port 1 in the sagittal plane.

Equivalent to beamsplitter.ABCD(2, 1, "y").

Getter:

Returns a copy of the (numeric) ABCD matrix for this coupling (read-only).