Diffractive Theory Study of Twisted Light’s Evolution during Phase-Only OAM Manipulations

Figure 3

Simulated (a1–b4) and experimentally measured (c1–d4) beam profiles upon propagation distance Z₂ since being reconverted. A 4f system is adopted in the measurement. (e1–e4) and (f1–f4) are simulated beam profiles via the accurately analytical solution and the corresponding measured beam profiles.