Invention relates to the field of optics and quantum physics and relates to the educational and scientific laboratory bench for conducting studies of polarization and correlation properties of single-photon, biphoton, coherent and thermal light fields, Hong-Ou-Mandel interference and homodyne detection. Test bench includes a pumping laser module, a biphoton source module, polarization measurement modules in channels A and B, a correlation measurement module, a coherent and thermal state source module and a homodyne detection module. Biphoton source module includes a polarization controller and nonlinear crystals. Channels A and B contain polarization controllers of biphoton radiation, a polarization filter and/or a beam splitter. Correlation measurement module comprises single-photon detectors connected to a pulse correlator connected to a computer. Coherent and thermal state source module comprises a laser and a beam splitter which divides light into two channels, in one of which a matte disk is placed, which is intended for modulation of phase and amplitude laser radiation at random.
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