Low-loss and compact, dual-mode, 3-dB power splitter combining a directional coupler, a multimode interferometer, and a Y-junction.
Appl Opt
; 63(8): 2030-2035, 2024 Mar 10.
Article
em En
| MEDLINE
| ID: mdl-38568644
ABSTRACT
Multimode power splitters are the fundamental building blocks in mode division multiplexing systems. In this paper, we propose a low-loss and compact, dual-mode, 3-dB power splitter for the two lowest TE modes combining three different structures, including a directional coupler, a multimode interferometer, and a Y-junction. The coupling length of the proposed device is only 7.2 µm. For both T E 0 and T E 1 modes, the numerical simulation shows that the insertion loss is only less than 0.1 dB and crosstalk is less than -20d B at the wavelength range of 1520-1580 nm. The working bandwidth can cover the entire C-band. It offers a potential solution for a 3-dB power splitter of the two lowest TE modes.
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01-internacional
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MEDLINE
Idioma:
En
Revista:
Appl Opt
Ano de publicação:
2024
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Article