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In this work, we report our recent progress on monolithic integration of magneto-optical oxide thin films and nonreciprocal photonic devices on silicon. We demonstrate strong Faraday rotation of − 6000 deg/cm at 1550 nm wavelength in silicon integrated Ce1.5Y1.5Fe5O12 films, which exceeds the Faraday rotation of epitaxial CeiY2Fe5Oi2 thin films on garnet substrates. We also present the design of a...
In this study, we used combinatorial pulsed laser deposition (PLD) method to deposit Ce:YIG thin films with high Ce concentration on silicon. Thin films with record high Ce concentrations of Ce1.3Y1.7Fe5O12 were successfully grown on silicon, which showed about 3 fold enhancement of the Kerr rotation at 635 nm wavelength compared to previously reported Ce1Y2Fe5O12. CexY3−xFe5O12 films with Ce concentration...
This paper presents the design of a multimode interference(MMI) based optical isolator on Silicon-On-Insulator (SOI) structure, by using the magneto-optical (MO) nonreciprocal phase shift (NRPS) of an MO thin film cladding on silicon waveguides. Finite element method (FEM) simulation based on coupled mode theory is applied to calculate the performance of the isolator. An isolator with isolation ratio...
Growth of phase pure yttrium iron garnet (YIG) on silicon is a challenging task due to the complexity of the Y–Fe–O phase diagram, and the lattice mismatch between Si and YIG. In this paper, we report the effect of deposition and post-deposition annealing (PDA) temperatures on the structure and the magnetic properties of YIG deposited on silicon using pulsed laser deposition. Both temperatures are...
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