DESIGN OF A NEW TYPE OF ELECTRO-OPTIC POLYMER WAVEGUIDE MODULATOR WITH ULTRAHIGH BANDWIDTH

Authors: Liu, Zilong; Yu, Jihai; Zhu, Daqing

Source: International Journal of Infrared and Millimeter Waves, Volume 27, Number 5, May 2006 , pp. 707-724(18)

Publisher: Springer

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Abstract:

In this article, rectangle, trapezoidal and T type microstrip lines embedded into up cladding of the waveguide are designed. By the analysis of the finite element method (FEM), this embedded microstrip line has perfect velocity matching between the electric signal and lightwave carrier and at the same time, conductor loss of the trapezoidal and T type microstrip lines also reduce. Thus the modulator’s bandwidth increases greatly. Calculations show that, comparing with one of non-embedded rectangle microstrip line which is the most familiar configuration of polymer modulator, the optical 3-dB bandwidths of embedded trapezoidal and T type microstrip increase 264% and 339% respectively under the condition of impedance matching.

Keywords: Electro-Optic Modulators; Microstrip Line; Modulation Bandwidth; Optoelectronics; Polymer; Waveguide

Document Type: Research Article

DOI: http://dx.doi.org/10.1007/s10762-006-9108-5

Publication date: May 1, 2006

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