Reverse design of the SMF-PCF F-P cavity

In this paper, we report a new F-P cavity based on single mode fiber and multimode PCF. The PCF has been analyzed by the digital image processing and the FEM in order to obtain its effective refractive index and propagation constants. Then optical characteristics of the F-P cavity based on this PCF are numerical analyzed which provide a theoretical basis for the reverse design of the SMF-PCF F-P Cavity. The practice of fabricating SMF-PCF cavity based on this theory has been carried out and the experimental results and theoretical results were consistent.