Design of passive ring resonators to be used for sensing applications

C. Ciminelli; C. E. Campanella; M. Nicola Armenise

doi:10.2971/jeos.2009.09034

Journal of the European Optical Society - Rapid publications, Vol 4 (2009)

Design of passive ring resonators to be used for sensing applications

C. Ciminelli, C. E. Campanella, M. Nicola Armenise

Abstract

In this paper we report on the effects of two optical beams counterpropagating in a passive ring resonator that is the building block of a lot of sensing applications. By using the transfer matrix method in combination with the coupled mode theory, the analytical expressions of the power transfer functions for drop and through port configurations are derived in both cases of single beam and double beams inside the ring. The implemented model has shown some improvements in the resonator performance, such as the increase of the transmission power and the reduction of the linewidth, when the interaction between the two beams is considered, with respect to the single beam ring resonator configuration.

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