Share Email Print

Proceedings Paper

Comparison of traveling wave electrodes in low-driver high-speed polymer modulators
Author(s): Liang Kun; Song Qiong; Boyu Wu; Chen Wang; Lu Fei; Haibo Peng; Shuyun Luo
Format Member Price Non-Member Price
PDF $14.40 $18.00
cover GOOD NEWS! Your organization subscribes to the SPIE Digital Library. You may be able to download this paper for free. Check Access

Paper Abstract

The characteristics of the polymer modulator are determined by many interrelated physical phenomena. The key issue of this paper is to find out the optimum device parameters and corresponding conditions by taking into account all the related factors. The optical field in ridge waveguides is calculated using the FEM software with MATLAB and then fit to a Gauss function. The parameters such as half-wave voltage, bandwidth are calculated using the FEM software with FORTRAN language. In the calculating results, the comprehensive characterization of the polymer modulator with 1.21v half-wave voltage, 91GHz bandwidth is presented, electro-optic interaction length is 20mm, electro-optic coefficient is 55pm/V, and wavelength is 1.319μm. These results fit the 0.8v half-wave voltage, electro-optic interaction length is 30mm reported on Science perfectly. More important, five structures of polymer modulators are presented all together and are compared of the merits and shortcomings. One of them is a combination of CPW and microstrip lines. The characterization of this structure is like that of the microstrip lines with single arm electrode on one arm of the waveguide, but it solves the problem of microstrip-coaxial transition and corona polarization.

Paper Details

Date Published: 7 November 2004
PDF: 10 pages
Proc. SPIE 5624, Semiconductor and Organic Optoelectronic Materials and Devices, (7 November 2004); doi: 10.1117/12.572629
Show Author Affiliations
Liang Kun, Tsinghua Univ. (China)
Song Qiong, Tsinghua Univ. (China)
Boyu Wu, Tsinghua Univ. (China)
Chen Wang, Tsinghua Univ. (China)
Lu Fei, Tsinghua Univ. (China)
Haibo Peng, Tsinghua Univ. (China)
Shuyun Luo, Tsinghua Univ. (China)

Published in SPIE Proceedings Vol. 5624:
Semiconductor and Organic Optoelectronic Materials and Devices
Chung-En Zah; Yi Luo; Shinji Tsuji, Editor(s)

© SPIE. Terms of Use
Back to Top