Mode-evolution-based TE mode magneto-optical isolator using asymmetric adiabatic tapered waveguides.
Opt Express
; 29(15): 22838-22846, 2021 Jul 19.
Article
em En
| MEDLINE
| ID: mdl-34614562
ABSTRACT
As an indispensable component in the photonic integrated circuits, the design and fabrication of optical isolators, particularly in the transverse electric (TE) polarized mode, is a long-standing challenge. Herein, we present a TE mode magneto-optical isolator using adiabatic tapered waveguides to realize conversions between designated modes. The isolator exhibits an ultranarrow structure of 1.27 µm × 1498 µm. We demonstrate that the device functions under a TE mode input with a maximum isolation ratio of 15 dB and an insertion loss of 5 dB at a wavelength of 1537.3 nm.
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2021
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Article