6533b82afe1ef96bd128bdf6

RESEARCH PRODUCT

Self-polarization of light in optical fibers

Pierre-yves Bony

subject

[PHYS.PHYS.PHYS-OPTICS] Physics [physics]/Physics [physics]/Optics [physics.optics]Nonlinear opticsPolarization attractionAttraction de la polarisationParois de domaines de polarisationPolarization domain wallsOptique non linéaire

description

The second performs the first experimental demonstration of the polarization domain walls which cancel the effects which degrade the intensity and spectral profile of a telecom signal during propagation. This phenomenon comes from non-linear coupling between the two orthogonal polarization modes of light propagating in a Kerr medium in normal dispersion regime, and causes a modulation in phase opposition of the two modes along the fiber. It is possible to lock two optical pulse trains complementary intensity so that the pulses do not suffer the effects of distortion occurring in the fiber in order to maintain the information to be transmitted. And a distortion-free propagation was achieved on 50 km.

https://theses.hal.science/tel-01270512