Abstract
This paper introduces a 2x2 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 insertion 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 insertion loss of 0.044 dB and an extinction ratio of 20.9 dB..
Keywords
Mach-Zehnder interferometer, Electro-optics, Potassium niobate, Titanium, Insertion loss, Extinction ratio.
Citation
HUDA S. ABO ELNASR, MOUSTAFA H. ALY, 2×2 electro-optic switch based on MZI at 1.55 μm: design and performance evaluation, Optoelectronics and Advanced Materials - Rapid Communications, 9, 9-10, September-October 2015, pp.1286-1291 (2015).
Submitted at: Aug. 4, 2015
Accepted at: Sept. 9, 2015