Optical magnetometric sensor for magnetoencephalographic complexes

A new implementation of the method of optical pumping of alkaline atoms in the scheme of a highly sensitive compact single-beam sensor of a nonzero magnetic field is proposed, which allows it to be used as part of a magnetoencephalographic complex with a remote laser pumping source. The proposed method makes it possible, in particular, to pump an array of sensors with a single source of polarization-modulated resonant radiation connected to sensors by means of polarization-supporting optical fibers. A model experiment has been carried out confirming the principle feasibility and effectiveness of the method.