Open AccessSimulation for Optical Response of High-Speed Traveling Wave Electro-Optic Polymer/TiO2 Multilayer Slot Waveguide Modulators
Author(s) -
Dan Zhang,
Yasufumi Enami
Publication year - 2017
Publication title -
ieee photonics journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.725
H-Index - 73
eISSN - 1943-0655
pISSN - 1943-0647
DOI - 10.1109/jphot.2017.2700870
Subject(s) - engineered materials, dielectrics and plasmas , photonics and electrooptics
In this paper, we analyze a traveling wave electrode as it drives a high-speed electro-optic (EO) polymer/TiO2 multilayer slot waveguide modulator by simulation. To enhance its mode confinement, the EO polymer is clipped by TiO2 slot waveguide films, and the electrode atop the active region and connection transmission line are optimized to match the impedance at 50 Ω. The optical response is over 200 GHz at 3-dB bandwidth with a 1-cm-long electrode. By comparison, the optical response with silicon TiO2 layers is only 20 GHz with transverse electric (TE) polarized light.