  The well-known effects of the spin-orbit interaction of light are
manifestations of pair mutual influence of the three types of the angular
momentum of light, namely, the spin angular momentum, the extrinsic orbital
angular momentum and the intrinsic orbital angular momentum. Here we propose
the convenient classification of the effects of the spin-orbit interaction of
light and we observe one of the new effects in the frame of this
classification, which is determined by the joint influence of two types of the
angular momentum on the third type of the angular momentum, namely, the
influence of the spin angular momentum and the extrinsic orbital angular
momentum on the intrinsic orbital angular momentum. We experimentally studied
the propagation of circularly polarized light through an optical fiber coiled
into a helix. We have found that the spin angular momentum and the helix
parameters affect the spatial structure of the radiation transmitted through
the optical fiber. We found out that the structure of the light field rotates
when changing the sign of circular polarization. The angle of rotation depends
on the parameters of the helix. The results can be used to develop the general
theory of spinning particles and can find application in metrology methods and
nanooptics devices.
