Fig. 3.

Trajectories of CPRs in the (h, v) and (x, y) basis complex planes. (a) Trajectory with double-pass phase retardation (2δ(z) = 360°) and an optic axis (c_{vh _ oa} = 0.3exp(j45°), black dot) in the (h, v) basis complex plane (b) Trajectory in the (x, y) basis complex plane. The optic axis (c_{yx _ oa}) in (x, y) basis complex plane is zero and at the origin of trajectory (Red and blue dots represent the first and last CPRs, respectively).