Unraveling the ultra-broadband beam splitter based on parallel coupled waveguides

An ultra-broadband beam splitter is theoretically realized using a directional parallel-cascaded coupled-waveguide structure, which is designed and investigated with the effective medium method and finite-difference time-domain method. The 1 dB bandwidth is 285 nm which is ranging from 1418 nm to 17...

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Bibliographic Details

Published in:	JPhys Photonics
Main Author:	Sheng Hsiung Chang
Format:	Article
Language:	English
Published:	IOP Publishing 2025-01-01
Subjects:	coupled waveguides structure broadband beam splitter coupling length recoupling zone
Online Access:	https://doi.org/10.1088/2515-7647/ae0ee6