FIBEROPTIC POLARIZER USING RESONANT-TUNNELING THROUGH A MULTILAYER OVERLAY

We demonstrate an in-line fiber-optic polarizer using resonant tunneli ng through a leaky multilayer overlay for the first time. Polarization extinction ratio (PER) similar or equal to 27 dB with an insertion lo ss (IL) similar or equal to 3 dB has been demonstrated experimentally with scope of further improvement. A simple planar waveguide model is developed to analyze the device whose predictions match very well with the experimental results. It is further shown that by properly select ing the device parameters one can achieve PER similar or equal to 68 d B with IL similar or equal to 0.2 dB for lambda = 0.6328 mu m and PER similar or equal to 80 dB with IL similar or equal to 1.2 dB for lambd a = 1.3 mu m. (C) 1997 Academic Press.