Fiber-integrated phase change metasurfaces with switchable group delay dispersion

• Author(s) / Creator(s)

  • Tiago Martins, Yihao Cui, Behrad Gholipour, Jun-Yu Ou, O. Frazão and Kevin F. MacDonald

• We report on the demonstration of a fiber-integrated non-volatile reconfigurable metasurface providing high-contrast group delay dispersion switching functionality, 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.

• Date created

  2021-04-21

• Subjects / Keywords

  • Metamaterials, Metasurfaces, Phase change, Optical Fiber, Dispersion, Chalcogenides

• Type of Item

  Article (Draft / Submitted)

• DOI

  https://doi.org/10.7939/r3-2844-3119

• License

  Attribution-ShareAlike 4.0 International