“…In the recent years, optimizing and refinement of microstructured optical devices with considerable low computational time is becoming crucial. For this purpose, genetic algorithms, artificial neural networks (ANN), and various other machine learning (ML) algorithms [1] , [2] , [3] , [4] , [5] , [6] , [7] , [8] were employed in the past. In this study, ML approaches are proposed to estimate the bending loss characteristics of a PCF based SPR structure.…”