TE-mode magneto-optical isolator based on an asymmetric microring resonator under a unidirectional magnetic field | Zendy

Shuyuan Liu | Zendy; Yuya Shoji | Zendy; Tetsuya Mizumoto | Zendy

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TE-mode magneto-optical isolator based on an asymmetric microring resonator under a unidirectional magnetic field

Author(s) -

Shuyuan Liu,

Yuya Shoji,

Tetsuya Mizumoto

Publication year - 2022

Publication title -

optics express

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.394

H-Index - 271

ISSN - 1094-4087

DOI - 10.1364/oe.454751

Subject(s) - optical isolator , materials science , optics , isolator , resonator , yttrium iron garnet , optoelectronics , photonic integrated circuit , wavelength , insertion loss , polarization (electrochemistry) , faraday effect , magnetic field , photonics , physics , optical fiber , electrical engineering , quantum mechanics , chemistry , engineering

Optical isolators are necessary components in photonic integrated circuits to ensure system stability by blocking the back-reflected light waves. In this study, a transverse electric mode magneto-optical isolator based on an asymmetric microring resonator without additional polarization rotators in series is demonstrated. Cerium-substituted yttrium iron garnet was integrated with silicon-on-insulator substrates by wafer bonding to break the Lorentz reciprocity on-chip after applying a unidirectional magnetic field. The isolator shows a 22 dB isolation ratio and a 4.3 dB insertion loss at an operation wavelength of 1572.62 nm.

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