Moustafa Hussein Aly
2×2 electro-optic switch based on MZI at 1.55 µm: design and performance evaluation
This paper introduces a 22 opto-electronic switch based on Mach-Zehnder interferometer (MZI) with a channel profile of Titanium (Ti) diffused in potassium niobate (KNbO3) at a wavelength of 1.55 μm. The ion loss and the extinction ratio are the evaluation parameters. The KNbO3 crystal as a host while optimizing the Ti strip thickness to provide a remarkable switching performance. The designed switch has a high switching capability. Optimization leads to a lower switching voltage of 4 V, an ion loss of 0.044 dB and an extinction ratio of 20.9 dB.