85 In experiments with the use of highpower laser sources, one often has to monitor the radiation polar� ization. As a rule, wellknown polarization analyzers that consist of a polarizer, a photodetector, and an electrical measuring instrument are used for this pur� pose. Polarizers may have different designs. Polarizers that consist of optically transparent birefringent crys� tals are widespread. The operating principle of such polarizers is based on the spatial separation of ordinary and extraordinary rays owing to the birefringence effect. Calcite is most frequently used as a birefringent crystal. The optical transmission range for calcite is 220-2300 nm. Therefore, such polarizers and, conse� quently, analyzers cannot operate in the medium IR region. Moreover, ordinary silicon or germanium pho� todetectors (PDs) that are included in widespread polarization analyzers also cannot operate in the medium IR spectral region because of the relatively large width of the forbidden band. Abstract—An optical analyzer of laser polarization has been designed and manufactured. The principle of operation of this analyzer is based on the recording of the polarizationdependent surface photocurrents in nanographite films. The analyzer does not contain additional optical elements and consists of a cylindrical bushing with a gauge of its angular position, a nanographite film grown on a silicon substrate, two parallel measurement electrodes placed on the film surface, and an electrical measuring instrument. The nanograph� ite film is placed on the bushing obliquely so that the measuring electrodes are parallel to the axial cross sec� tion of the bushing, which is oriented perpendicular to the film tilt plane. The analyzer can operate in the wavelength range from 266 to 4000 nm.