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A modification of model describing optical structures forming in nonlinear ring interferometer (NRJ) containing liquid crystal having Kerr effect is suggested. Case of optical field which is turned through some angle in cross section plane of the laser beam (in feedback of the NRJ) is investigated. It is found that both screw dislocation order of the wavefront entering on the NRJ input and phase shift of the optical field in circuit of feedback ofthe NRT effects on optical forming process equally strongly. A theoretical analysis and simulations show any new possibilities ofNRJ applications: the identification of spiral dislocation order of an optical vortex (by shape of optical structures self-organizating in cross section plane of laser beam in NRI); the compensation of the optical vortex effect on evolution and result of the optical forming in NRI; basis of an arithmetic-logical optical device realizing addition operation.

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