Open AccessDesign and theoretical characterization of high speed metasurface modulators based on electro-optic polymer
Author(s) -
Xiaowei Sun,
Guolei Liu,
Haiqing Yu,
Dasai Ban,
Niping Deng,
Feng Qiu
Publication year - 2021
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.418952
Subject(s) - optics , extinction ratio , materials science , modulation (music) , photonics , bandwidth (computing) , optoelectronics , optical modulator , optical communication , phase modulation , physics , telecommunications , computer science , wavelength , acoustics , phase noise
Metasurfaces have attracted extraordinary interest in achieving novel, ultrathin and compact photonic devices. To date, however, the realization of electrically tunable high-speed metasurfaces remains a great challenge. In this work, we present an electro-optic (EO) polymer/silicon hybrid metasurface modulator with an estimated 3dB modulation bandwidth up to 118 GHz. The specially designed metasurface utilizes a broken in-plane inversion symmetry structure to generate a high-Q resonance. The high-Q property enhances the EO modulation effect, so that a 16 dB extinction ratio is theoretically verified under a driving voltage Vp-p of 4V. The pulse modulation results in an ultra-fast single-lane data rates up to 300 Gbps driven by a low RF power. The presented modulator should be applicable for high-speed and low-energy intelligent tunable metasurface, space optical communication and so on.