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Polymer-based directional coupler modulator with high linearity

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2 Author(s)
Hung, Yu-Chueh ; Dept. of Electr. Eng., California Univ., Los Angeles, CA, USA ; Fetterman, Harold R.

A generalized novel two-section directional coupler modulator with a linear transfer function is presented. This scheme introduces different coupling coefficients for each of the sections. We show that this configuration effectively suppresses the third-order intermodulation distortion compared to a conventional Mach-Zehnder modulator. It can be easily implemented by the photobleaching technique in polymer technology and demonstrates a simple and promising design for high-performance analog optical links without a complicated structure or electrical control.

Published in:

Photonics Technology Letters, IEEE  (Volume:17 ,  Issue: 12 )

Date of Publication:

Dec. 2005

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