Angle-tuned optical interleaver based on Fabry–Perot cavities with reconfigurable angle range

This paper presents a thin film coupled Fabry–Perot cavities optical interleaver. The simulation results for the interleaver shows an outstanding performance in accurately selecting the required channels and robustness in the channel profile. The accuracy is achieved by varying the range of the incident angle. Furthermore, the interleaver has a re-configurable incident angle range with fine and coarse angle ranges, which provides a broader range of applications for such an interleaver. Moreover, the proposed approach provides the reconfigurability for the interleaver performance, which is now a reconfigurable thin-film-based device for selecting the odd/even interleaved channels. The channel selection is based on specific angle values for fine and coarse ranges. Such a device will add more flexibility and multi-functionality to the optical system.