Open AccessPlate-slot polymer waveguide modulator on silicon-on-insulator
Author(s) -
Feng Qiu,
Andrew M. Spring,
Jianxun Hong,
Shiyoshi Yokoyama
Publication year - 2018
Publication title -
optics express
Language(s) - Uncategorized
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.26.011213
Subject(s) - materials science , silicon on insulator , resonator , optical modulator , optoelectronics , optics , modulation (music) , electro optic modulator , interferometry , bandwidth (computing) , waveguide , silicon photonics , voltage , insertion loss , silicon , optical ring resonators , phase modulation , telecommunications , electrical engineering , physics , computer science , phase noise , acoustics , engineering
Electro-optic (EO) modulators are vital for efficient "electrical to optical" transitions and high-speed optical interconnects. In this work, we applied an EO polymer to demonstrate modulators on silicon-on-insulator substrates. The fabricated Mach-Zehnder interferometer (MZI) and ring resonator consist of a Si and TiO 2 slot, in which the EO polymer was embedded to realize a low-driving and large bandwidth modulation. The designed optical and electrical constructions are able to provide a highly concentrated TM mode with low propagation loss and effective EO properties. The fabricated MZI modulator shows a π-voltage-length product of 0.66 V·cm and a 3-dB bandwidth of 31 GHz. The measured EO activity is advantageous to exploit the ring modulator with a resonant tunability of 0.065 nm/V and a 3-dB modulation bandwidth up to 13 GHz.