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Author Chaichuay, Chinda ♦ Yupapin, Preecha P. ♦ Saeung, Prajak
Source CiteSeerX
Content type Text
File Format PDF
Subject Domain (in DDC) Computer science, information & general works ♦ Data processing & computer science
Subject Keyword Vernier Effect ♦ Multiple Ring Resonator Filter ♦ Smrr Filter ♦ Multiple Ring Resonator ♦ Stopband Rejection ♦ Unequal Perimeter ♦ Novel Derivation ♦ Signal Flow Graph Diagram ♦ Graphical Approach ♦ Common Multiple ♦ Nonsymmetric Vernier Type ♦ Coupling Coefficient Distribution ♦ Wide Free Spectral Range ♦ Flatter Top ♦ Interstitial Resonance ♦ Individual Ring Resonator ♦ Single Ring Resonator ♦ Identical Perimeter ♦ General Characteristic ♦ Optical Transfer Function ♦ Steeper Roll-off ♦ Vernier Filter
Abstract The general characteristics of serially coupled multiple ring resonator (SMRR) filters are analyzed. In this case, the ring resonators of the SMRR have identical perimeters and the coupling coefficients distribution provides passband characteristics with steeper roll-off, flatter top and greater stopband rejection than a single ring resonator. In addition, we have also designed and simulated a nonsymmetric Vernier type of SMRR filters for improving a wide free spectral range (FSR) with different ring radii. To expand the FSR of the SMRR, Vernier filters are determined by the least common multiple of the FSR of individual ring resonators. The improvement in suppression of interstitial resonances is also investigated. A novel derivation of the optical transfer functions in Z-domain of SMRR filters is expressed employing a graphical approach to ring resonators with unequal perimeters that can be represented in signal flow graph diagrams.
Educational Role Student ♦ Teacher
Age Range above 22 year
Educational Use Research
Education Level UG and PG ♦ Career/Technical Study