Optical transmission properties of light propagation through Fibonacci-class ring-resonators

摘要

An interesting topology with easy integration capability ( from mask designing aspect) for optical filters using Fibonacci- class ( FC( J, n)) ring-resonators is introduced. For some special cases, analytical transfer function ( Transmission Coefficient H( n) m) is obtained and corresponding simulated result is illustrated. In this work, optical multi-band filter design and analysis using Fibonacci- class ring resonators is considered. With suitable selection of system parameters and FC( J, n), we report multi-band characteristic for this structure. Also, dominant factors effects on multi-band operation are shown. We show that the coupling coefficients, effectively affects ( e. g. generation or annihilation of additional band) the multiband properties obtained in proposed structure. Also, the bandwidth and position of additional band can be controlled using Fibonacci- class basic elements ( A, B) parameters such as rings diameters. Also, proposed system is easier than general multistage rings coupled to main waveguide from implementation point of view.