[9a-N302-1~11] 3.13 Silicon photonics, Photonics-electronics convergence, Optical control

10:30 AM - 10:45 AM JST(1:30 AM - 1:45 AM UTC)Presentation by Applicant for JSAP Young Scientists Presentation Award

[9a-N302-6] 20-Mode Spatial and Polarization Multiplexer Based on Stacked Three-Layer Dielectric Metasurfaces

〇Takahiro Suganuma¹, Chun Ren¹, Nicolas Fontaine², Yusuke Tsubai¹, Go Soma¹, Takuo Tanemura¹ (1.Univ. of Tokyo, 2.Nokia Bell Labs)

Keywords:

metasurface,space division multiplexing,multiplexer

We report a spatial and polarization mode multiplexer for space-division-multiplexed optical communications. We developed vertically stacked three-layer dielectric metasurfaces, which convert and multiplex 20 X/Y-polarized Gaussian beams into 20 Hermite–Gaussian modes. A proof-of-concept device with an aperture diameter of 800 μm was fabricated, and the desired 20-mode operation was confirmed at a wavelength of 1550 nm, demonstrating a scalable optical interface for the space-division-multiplexed systems.