Reconfigurable metasurface-based 1 x 2 waveguide switch

doi:10.1364/prj.428577

CIOMP OpenIR

	Reconfigurable metasurface-based 1 x 2 waveguide switch
	A. Alquliah; M. Elkabbash; J. L. Cheng; G. Verma; C. S. Saraj; W. Li and C. L. Guo
	2021
发表期刊	Photonics Research
ISSN	2327-9125
卷号	9 期号:10 页码:2104-2115
摘要	Reconfigurable nanophotonic components are essential elements in realizing complex and highly integrated photonic circuits. Here we report a novel concept for devices with functionality to dynamically control guided light in the near-visible spectral range, which is illustrated by a reconfigurable and non-volatile (1 x 2) switch using an ultracompact active metasurface. The switch is made of two sets of nanorod arrays of TiO2 and antimony trisulfide (Sb2S3), a low-loss phase-change material (PCM), patterned on a silicon nitride waveguide. The metasurface creates an effective multimode interferometer that forms an image of the input mode at the end of the stem waveguide and routes this image toward one of the output ports depending on the phase of PCM nanorods. Remarkably, our metasurface-based 1 x 2 switch enjoys an ultracompact coupling length of 5.5 mu m and a record high bandwidth (22.6 THz) compared to other PCM-based switches. Furthermore, our device exhibits low losses in the near-visible region (similar to 1 dB) and low cross talk (-11.24 dB) over a wide bandwidth (22.6 THz). Our proposed device paves the way toward realizing compact and efficient waveguide routers and switches for applications in quantum computing, neuromorphic photonic networking, and biomedical sensing and optogenetics. Published by The Optical Society under the terms of the Creative Commons Attribution 4.0 License.
DOI	10.1364/prj.428577
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收录类别	SCI
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文献类型	期刊论文
条目标识符	http://ir.ciomp.ac.cn/handle/181722/65579
专题	中国科学院长春光学精密机械与物理研究所
推荐引用方式 GB/T 7714	A. Alquliah,M. Elkabbash,J. L. Cheng,et al. Reconfigurable metasurface-based 1 x 2 waveguide switch[J]. Photonics Research,2021,9(10):2104-2115.
APA	A. Alquliah,M. Elkabbash,J. L. Cheng,G. Verma,C. S. Saraj,&W. Li and C. L. Guo.(2021).Reconfigurable metasurface-based 1 x 2 waveguide switch.Photonics Research,9(10),2104-2115.
MLA	A. Alquliah,et al."Reconfigurable metasurface-based 1 x 2 waveguide switch".Photonics Research 9.10(2021):2104-2115.

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