When polarized light is incident upon a long multimode fiber, the emerging light is randomly distributed among the spatial and polarization modes. We present experimental and theoretical results demonstrating that recovery of the spatial and polarization modes of the incident light takes place only when a phase conjugator at the fiber output preserves polarization on reflection.
© 1987 Optical Society of America
Ian McMichael, Pochi Yeh, and Paul Beckwith, "Correction of polarization and modal scrambling in multimode fibers by phase conjugation," Opt. Lett. 12, 507-509 (1987)