In this research, an all optical fano switch based on photonic crystal slab which has a fano shape transmission spectrum is demonstrated. fano resonance characteristics is improved toward high contrast and sharper spectrum. In proposed device, the quality factor of the active cavity is compared with old structures and the improvement of quality factor is addressed. The structure has been simulated by FDTD. The proposed device because of its so sharp transmission spectrum will be in kind of devices which consume very low energy. Output spectrum of the modified switch is validated by the results reported in the literature.

Keywords: Optical switch, All optical switching, Fano switch, Photonic Crystal

Full-Text [PDF 794 kb]   (885 Downloads)