Design and Modeling of Traveling-Wave Electro-Optic Polymer Modulator for Ultrahigh Speed Applications

Author

Li, Bing ; Vemagiri, Jeevan ; Dinu, Raluca

Author_Institution

Lumera Corp., Bothell, WA

Volume

27

Issue

5

fYear

2009

fDate

3/1/2009 12:00:00 AM

Firstpage

606

Lastpage

611

Abstract

We present a complete model and design approach for high speed electro-optic (EO) polymer modulators. A general numerical model for arbitrary travelling-wave EO modulators is built, and the dispersion characteristic of each polymer layer in the device stack is carefully considered and integrated into the model. A velocity compensation layer is added to allow more room for increasing the waveguide core index to optimize half-wave voltage of the device. Microstrip mode analysis is also included to estimate the influence of different polymer stack to the E filed distribution inside the waveguide core. The device has been successfully designed and achieves more than 45 GHz EO bandwidth with a half-wave voltage of 3.2 V. A 100 Gbps EO modulator is under development.

Keywords

electro-optical modulation; optical dispersion; optical polymers; E filed distribution; bit rate 100 Gbit/s; dispersion characteristic; electro optic polymer modulator; frequency 45 GHz; half wave voltage; microstrip mode analysis; traveling wave; ultrahigh speed applications; velocity compensation layer; voltage 3.2 V; waveguide core index; Bandwidth; Dielectric materials; Electrodes; Electrooptic modulators; Electrooptical waveguides; Frequency; Microstrip; Optical polymers; Optical waveguides; Voltage; Electrooptic (EO) modulation; high-speed electronics; microstrip; optical waveguide components;

fLanguage

English

Journal_Title

Lightwave Technology, Journal of

Publisher

ieee

ISSN

0733-8724

Type

jour

DOI

10.1109/JLT.2008.2004943

Filename

4814720