Certification method of Stokes polarimeter and its optical units using magneto-optical modulation

We constructed highly sensitive access system for polarized (Stokes parameters) optical beams component registration. It is based on magneto-optical modulation usage. We considered optical properties deflection from ideal for the optical elements that are kept by access system. That is compensator, magneto-optical modulator, and analyzer. For the compensator it's partial linear dichroism and the difference between phase confusion and standard one. For modulator it's partial double beam-reflection. We got total expression for access system signal. It gives main modulation harmonic due to any optical element orientation. This allows testing optical settings without using additional devices. We offered method of Stokes parameters definition. It compensates errors due to optical system parameter deflection from ideal.