Photonic integrated circulators based on iron garnets without external magnetization

Gianni Portela; Luciano P. de Oliveira; Miguel Levy; Hugo E. Hernandez-Figueroa

doi:10.1117/12.2578396

5 March 2021 Photonic integrated circulators based on iron garnets without external magnetization

Gianni Portela, Luciano P. de Oliveira, Miguel Levy, Hugo E. Hernandez-Figueroa

Proceedings Volume 11690, Smart Photonic and Optoelectronic Integrated Circuits XXIII; 116900J (2021) https://doi.org/10.1117/12.2578396
Event: SPIE OPTO, 2021, Online Only

Abstract

A new compact optical circulator based on a photonic crystal made of a triangular lattice of air holes etched in a magneto-optical material that does not require an external DC magnetic field to keep its saturated magnetic state is presented. The design has a threefold rotational symmetry and it consists of three single-mode waveguides and one resonator supporting dipole resonances introduced in the photonic crystal structure. Computational simulations of the circulator demonstrate that, at the 1.55 µm wavelength, the insertion losses are about -1 dB, while the isolation and reflection levels are about -15 dB and -24 dB, respectively.

Conference Presentation

Citation Download Citation

Gianni Portela, Luciano P. de Oliveira, Miguel Levy, and Hugo E. Hernandez-Figueroa "Photonic integrated circulators based on iron garnets without external magnetization", Proc. SPIE 11690, Smart Photonic and Optoelectronic Integrated Circuits XXIII, 116900J (5 March 2021); https://doi.org/10.1117/12.2578396

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