An electro-optic polymer-cladded TiO2 waveguide modulator

作者：Qiu, Feng; Miura, Hiroki; Spring, Andrew M.; Hong, Jianxun; Maeda, Daisuke; Ozawa, Masa-aki; Odoi, Keisuke; Yokoyama, Shiyoshi^*

来源：Applied Physics Letters, 2016, 109(17): 173301.

DOI：10.1063/1.4966272

• ORGANIC HYBRID MODULATOR
• HIGH-SPEED

Organic electro-optic (EO) materials and their hybrid systems have received considerable attention for high-performance modulators. In this work, we demonstrate the design and fabrication of an EO modulator with a low half-wave voltage (V-pi) and a RF modulation response up to at least 10 GHz. The polymer used in this work has a glass transition temperature of 172 degrees C, which makes it stable even under high temperature RF sputtering. As a result, an EO polymer-cladded titanium dioxide (TiO2) waveguide structure can be utilized to enlarge the confinement factor, and thus, enable a low V-pi. The response of the modulator from 4 to 10 GHz has been measured, which shows a flat frequency response up to 10 GHz and a potential for the application in several tens GHz. Published by AIP Publishing.

• 出版日期2016-10-24