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2×2 electro-optic switch based on MZI at 1.55 μm: design and performance evaluation

HUDA S. ABO ELNASR1, MOUSTAFA H. ALY1,*

Affiliation

  1. Electronics and Communication Engineering Department, Faculty of Engineering, Pharos University, Alexandria, Egypt

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