Performance of a single ring resonator for photonic applications


    Pablo Sanchis Kilders


The ring resonator is a device based on an optical waveguide in a close loop coupled to another optical waveguide. The structure will be resonant for light which after each full trip around the ring resonator constructively interferes with the input light.


- Analyze the influence of the transmission coefficient
- Analyze the influence of losses in the ring resonator
- Optimize the ring resonator performance depending on the target application


The normalized optical power and phase shift responses of the output light are simulated as a function of the single-pass phase shift in the ring. The responses will depend on the amplitude transmission coefficient (t) and the amplitude loss coefficient of the ring resonator (A). The loss coefficient is in linear units so that A=1 corresponds to the lossless case and A=0 to the infinite loss case. The normalized optical power can be shown in dB (plotdB=1) or linear (plotdB=0) units. The insertion losses (IL) and extinction ratio (ER) is also shown when plotting the results in dB units.


Transmission coefficient

Ring losses

Plot units


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