A theoretical and numerical investigation of the magneto-optic Kerr effect
in a slab optical waveguide bounded on one side by a thin magnetic film is
considered. The output power has been determined as a function of the input
polarization angle, output analyzer angle, thickness of the intermediate c
ladding layer, and the length of the magnetic film. It is found that an opt
imal choice of these parameters exists that produces an enhancement in pola
rization rotation. Moreover the Kerr effect in a confined geometry shows a
richness of properties that can be experimentally checked and opens up new
possibilities for the development of magnetic field sensors. (C) 2001 Ameri
can Institute of Physics.