Fig. 2
From: Experimental demonstration of robust self-testing for bipartite entangled states
Experimental setup to self-test pure unknown bipartite systems. The setup includes an entanglement source and a measurement apparatus for self-testing. In brief, entangled photon pairs are generated by pumping a periodically poled KTP (PPKTP) crystal in a polarization Sagnac interferometer (SI), and then they are encoded into polarization and path modes to produce high-dimensional entanglement. A hybrid measurement apparatus can perform arbitrary projective measurements on polarization and path modes. BD beam displacer, HWP half wave plate, QWP quarter wave plate, DM dichroic mirror, BPF bandpass filter, PBS polarized beam splitter, SMF single mode fiber
