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	Magneto-optical isolator monolithically integrated on silicon
	The goal of this project is to create magneto-optical isolator devices monolithically integrated on silicon, an essential cornerstone while yet a missing link in silicon photonic integration. In this project, we are exploring the combination of chalcogenide glasses with magneto-optical oxide materials for on-chip optical isolation applications. Chalcogenide glasses feature several attractive properties that are of particular relevance here, including their high refractive index as well as low optical loss; further, their amorphous nature enables monolithic integration on virtually any substrate materials free of lattice-matching constraints. In addition, we will leverage the glass resonator knowledge base for device miniaturization and performance improvement. We have fabricated magneto-optical waveguides in chalcogenide glass and magneto-optical oxide on silicon, which demonstrate the potential of this approach. Detailed material and device characterization results will be published shortly.

	[1] L. Bi, H. Kim, J. Hu, L. C. Kimerling, and C. Ross, “As₂S₃/Sr(Ti_0.7Co_0.3)O₃ and As₂S₃/Sr(Ti_0.6Fe_0.4)O₃ strip-loaded waveguides for integrated magneto-optical isolator applications,” Proc. SPIE 7218, 721803 (2009).