Analysis of efficiently poled electro-optic polymer/Tio2 vertical slot waveguide modulators

OPTICS COMMUNICATIONS

卷:362

Article

Enami, Y.¹  Nakamura, H.¹  Luo, J.²  Jen, A. K-Y.² 

[1] Kochi Univ Technol, Sch Syst Engn, Kochi 7828502, Japan

[2] Univ Washington, Dept Mat Sci & Engn, Seattle, WA 98198 USA

关键词: Electro-optic modulators;    Electro-optic polymers;    Vertical TiO2 slot waveguide;    Sol-gel silica cladding;   

DOI  :  10.1016/j.optcom.2015.08.048

来源: Elsevier

【 摘 要 】

We analyze the advantages of an electro-optic (EO) polymer/TiO2 vertical slot waveguide modulator based on a low-index EO polymer (SEO125). This modulator can realize a lower half-wave voltage (V-pi)-electrode length (L-e) product (V pi Le) when compared with hybrid EO polymer (EOP)/sol-gel silica waveguide modulators because of the high mode confinement of the guided light and the high poling efficiency. We show the enhancement of the poling efficiency in these devices when the EO polymers are poled with TiO2 and sol-gel silica layers. We also enhance the EO coefficient to a level of 260 pm/V at a wavelength of 1.31 mu m for a high-index EOP (SEO100) deposited on TiO2, a sol-gel silica cladding layer, and an additional interfacial layer. (C) 2015 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY license.

【 授权许可】

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