材料科学
群时延和相位时延
硫系化合物
神经形态工程学
光子学
光电子学
色散(光学)
光学
计算机科学
电信
人工神经网络
物理
机器学习
带宽(计算)
作者
Tiago Martins,Yihao Cui,Behrad Gholipour,Jun‐Yu Ou,Orlando Frazão,Kevin F. MacDonald
标识
DOI:10.1002/adom.202100803
摘要
Abstract Demonstration of a fiber‐integrated non‐volatile reconfigurable metasurface providing high‐contrast group delay dispersion switching functionality is reported, which may be engineered to operate at wavelengths across the near‐infrared (telecoms) band. Light‐induced amorphous‐crystalline phase switching in a chalcogenide (germanium antimony telluride) metasurface, only a fraction of a wavelength thick, fabricated on the end‐facet of a single‐mode optical fiber, enables intensity and phase modulation of the guided wave at metasurface designated bands. Such devices present a range of opportunities in fiberized remotely programmable phase/intensity multiplexing and dynamic dispersion compensation for emerging telecommunications and data storage/processing applications, including in photonic neural network and neuromorphic computing architectures.
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