Holographic Coupler / Grin Medium : Characterization Of The Coupling Optimization

Abstract

The interconnection problems in the use of optical fibers for signal transmission is a very active area of research involving several fields such as optical communication techniques and holography. Various authors have studied the efficiency of the transfer of energy from the first fiber to the second one by using a holocoupler as connecting medium. In an earlier workwe developed a mathematical model based upon the scattering by a dielectric optical waveguide, the scattered field acting as the object wave in the recording process of the holocoupler. In the present work we propose a new system where a GRIN medium is acting as the signal transmitter. We have studied the optimal conditions for the holocoupler/Grin medium system. For that we have considered two different taper shapes generating the GRIN medium and, we have made comparative studies for the results obtained in both cases. Some conclussions are withdrawn in relation to the parameters of the GRIN medium for the coupling optimization.