Mode control in photosensitive integrated optic devices using the Weigert effect

Photo-induced birefringence is proposed as a tool for mode- control applications in integrated optical devices, such as waveguides, fibers, etc. Various geometries of photo- exposition are theoretically considered for the examples of a plane waveguides. Analytical solutions are obtained that provide information about the resulting polarizational behavior of the guide. The presence of birefringent Bragg gratings is then considered and conditions are identified to obtain polarization insensitive spectral filters.