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Erschienen in:
01.02.2014
Analysis and design of an electro-optic \(2\times 2\) switch using Ti: \(\hbox {KNbO}_3\) as a waveguide based on MZI at \(1.3\,\upmu \hbox {m}\)
Erschienen in: Optical and Quantum Electronics | Ausgabe 2/2014
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Abstract
This work describes an approach to design a \(2\times 2\) optoelectronic switch based on the Mach–Zehnder interferometer with a channel profile of Titanium (Ti) diffused in Potassium niobate (\(\hbox {KNbO}_{3}\)) at a wavelength of \(1.3\,\upmu \hbox {m}\). The evaluation parameters used are the insertion loss and the extinction ratio. The originality of this work is introducing the \(\hbox {KNbO}_{3 }\) crystal as a host while optimizing the Ti strip thickness to provide a remarkable switching performance. Optimization leads to a lower switching voltage of 4 V, an insertion loss of 0.0261 dB and extinction ratio of 29.4 dB. The designed switch has a high switching capability and degree of reliability.