Fig. 2: Experimental setup for the generation and coherent detection of vectorial structured light with different non-separability.
From: Coherent detector for the non-separability measurement of vectorial structured light

Pol. polarizer, BS beam splitter, PBS polarization beam splitter, HWP half-wave plate, SLM spatial light modulator, QWP quarter-wave plate, CCD charge-coupled device, PC personal computer