Analysis and Design Optimization of a Hybrid VO2/Silicon2 $\times$ 2 Microring Switch

IEEE Photonics Journal

P. Sanchis¹  A. Gutierrez¹  L. Sanchez¹  S. Lechago¹ 

[1] Nanophotonics Technology Center, Universitat Politecnica de Valencia, Valencia, Spain;

关键词: Integrated optical devices;    silicon photonics;    optical switches and phase change materials;   

DOI  :  10.1109/JPHOT.2016.2551463

来源: DOAJ

【 摘 要 】

The metal-to-insulator transition (MIT) property of vanadium dioxide (VO2) has recently been used in several application fields such as plasmonics, sensing, metamaterials, and optical modulation. Due to the MIT nature, VO₂ allows a huge change in its complex refractive index that can be electrooptically controlled. In this paper, the analysis and design optimization of a 2 × 2 microring switch based on a hybrid VO₂/silicon waveguide structure is addressed. Switching is achieved by exploiting the change in both absorption loss and phase shift that occurs in VO₂ when changing from the insulating to the metallic state. The device is optimized to minimize insertion losses and crosstalk. An active length of only μm is required to achieve a data throughput rate higher than 500 Gb/s at a single optical wavelength.

【 授权许可】

Unknown