A Broadband Polarization Splitter Directional Coupler Based On Tilted Subwavelengh Grating Metamaterials

José Manuel Luque-González,Alaine Herrero-Bermello,Alejandro Ortega-Moñux, Marina Sánchez-Rodriguez,Aitor V. Velasco,Jens H. Schmid,Pavel Cheven,Íñigo Molina-Fernández,Robert Halir

2020 IEEE PHOTONICS CONFERENCE (IPC)（2020）

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摘要

Tilted subwavelength gratings (SWG) allows anisotropy tailorable metamaterials with applications in polarization management. Based on this concept, here we experimentally demonstrate a broadband directional-coupler-based polarization beam splitter with sub-decibel insertion loss in a 100 nm bandwidth.

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关键词

silicon photonics, silicon-on-insulator subwavelength gratings, metamaterials, polarization management

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