Estimation of the Bandwidth of Acceptable Crosstalk of Parallel Coupled Ring Resonator Add/Drop Filters
In this paper, a parallel coupled optical ring resonator filter is studied and the transfer function is derived using the Signal Flow Graph approach to identify the filter performance in terms of crosstalk suppression bandwidth and signal integrity. This paper proposes the use of the Signal Flow Graph (Mason’s rule) approach to determining the filtering characteristics of ring resonators. A commercial electromagnetic simulator is used to validate the analytical model. The modelling of the parallel coupled ring resonator covers the analysis of the out-of-band rejection ratio, crosstalk suppression, loss effect and the effect of coupling coefficients on the crosstalk bandwidth. The good agreement between analytical model results and simulation results suggest that using the derived analytical model provides an accurate starting point for design and analysis and, in doing this, provides a better insight into the signal integrity performance of the filter
The file attached to this record is the author's final peer reviewed version. The Publisher's final version can be found by following the DOI link.
Citation : Mansoor, R., Sasse, H., Al-Asadi, M., Ison, S.J. and Duffy, A.P. (2015) Estimation of the Bandwidth of Acceptable Crosstalk of Parallel Coupled Ring Resonator Add/Drop Filters. IEEE Transactions on Electromagnetic Compatibility, 57 (5), pp. 1005-1012
Research Group : Centre for Electronic and Communications Engineering
Research Institute : Institute of Engineering Sciences (IES)
Peer Reviewed : Yes
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