IdealPhotonics' rotating fiber is a special type of fiber that achieves dynamic control of the polarization state/orbital angular momentum of light waves through a helical structure or periodic twisting design. It can directly generate or convert polarized/vortex light within the fiber, making it suitable for quantum optics, high-dimensional communication, and novel fiber optic sensing systems."Dynamic control of the optical field induced by a helical structure" achieves precise manipulation of polarization state, orbital angular momentum (OAM), and even nonlinear effects within the fiber through periodic twisting or helical geometry design, providing flexible optical field engineering methods for quantum communication, high-capacity optical transmission, and novel sensors.