Extending the spectral operation of multimode and polarization-independent power splitters through subwavelength nanotechnology

• Published in: Optics and laser technology Vol. 181; p. 111921
• Main Authors: Fernández de Cabo, Raquel, González–Andrade, David, Cheben, Pavel, Velasco, Aitor V.
• Format: Journal Article
• Language: English
• Published: Elsevier Ltd 01.02.2025; Elsevier
• Subjects: Dual polarization operation; Fabrication tolerant; Multimode operation; Power splitter; Silicon photonics; Subwavelength grating metamaterial; Ultra–broadband; Y–junction; Multimode operation; Ultra–broadband; Power splitter; Silicon photonics; Dual polarization operation; Fabrication tolerant; Subwavelength grating metamaterial; Y–junction

•This paper introduces a pioneering 3-dB power splitter based on a symmetric Y-junction, enhanced by two distinct subwavelength grating metamaterial geometries for the silicon-on-insulator platform.•The device exhibits high performance for multimode and dual-polarization operation with relaxed fabri...