  We propose and experimentally demonstrate a novel interferometric approach to
generate arbitrary cylindrical vector beams on the higher order Poincare
sphere. Our scheme is implemented by collinear superposition of two orthogonal
circular polarizations with opposite topological charges. By modifying the
amplitude and phase factors of the two beams, respectively, any desired vector
beams on the higher order Poincare sphere with high tunability can be acquired.
Our research provides a convenient way to evolve the polarization states in any
path on the high order Poincare sphere.
