Optical pulse response of a fibre ring resonator

This article presents the optical pulse response analysis of a fibre ring resonator. It is shown that several interesting functions, namely optical pulse differentiation, integration or delay, trigger pulse generation, and equalisation of fibre dispersion can be realised by using the resonator. The theory is presented in an easy to understand manner, by first considering the steady-state response. The results of the transient pulse response are explained in relation to the steady state results. The results related to optical pulse shaping will be of interest to the future when coherent optical pulse and switching circuits will become available.