Open AccessTiO_2 ring-resonator-based EO polymer modulator
Author(s) -
Feng Qiu,
Andrew M. Spring,
Daisuke Maeda,
Masa Aki Ozawa,
Keisuke Odoi,
Isao Aoki,
Akira Otomo,
Shiyoshi Yokoyama
Publication year - 2014
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.22.014101
Subject(s) - materials science , resonator , optical modulator , polymer , modulation (music) , optoelectronics , optics , electrode , wavelength , titanium dioxide , silicon dioxide , electro optic modulator , phase modulation , composite material , chemistry , philosophy , physics , phase noise , aesthetics
In this work, an electro-optic (EO) ring resonator modulator was designed and fabricated in a waveguide consisting of a titanium dioxide (TiO)₂ core, silicon dioxide (SiO₂) buffer layer, EO polymer claddings, and electrodes. By optimizing the thickness of the TiO₂ and SiO₂layers, the modulator could satisfy the single-mode requirement; furthermore 52.5% TM mode was confined in the active EO polymer layers. The designed modulator could also pole the EO polymer effectively regardless of its resistivity. Therefore, the EO modulator was observed to show a high resonance wavelength shift of 2.25 × 10(-2) nm/V. The intensity modulation at 1550 nm showed a Vp-p = 1.9 V for a 3dB distinction ratio.