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Proceedings Paper

Linear electro-optic modulator based on an array of Mach-Zehnder interferometers
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Paper Abstract

A linearized external electro-optic modulator with a number of parallel Mach-Zehnder interferometers cascaded via directional couplers is proposed. Fast-Fourier-Transform method is used to analyze both the third harmonic spurious signal and the third intermodulation distortion. By adjusting the number of Mach- Zehnder interferometers contained in the modulator, the linearity of the transfer curve of the modulator can be modified while obtaining nearly 100% optical modulating depth. The modulator is based on an innovative domain-interval electro-optic polymer film, where the two arms of each Mach-Zehnder interferometer are inversely poled. As a result, only one driving voltage is required upon a pair of uniform traveling-wave electrodes, for high-speed operation.

Paper Details

Date Published: 5 May 1998
PDF: 10 pages
Proc. SPIE 3288, Optoelectronic Interconnects V, (5 May 1998); doi: 10.1117/12.307577
Show Author Affiliations
ZuZhou Yue, Univ. of Texas/Austin (United States)
Suning Tang, Radiant Research, Inc. (United States)
Ray T. Chen, Univ. of Texas/Austin (United States)

Published in SPIE Proceedings Vol. 3288:
Optoelectronic Interconnects V
Ray T. Chen; Julian P. G. Bristow, Editor(s)

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