Design of an Electro-Optic Modulator for Radio-Over-Fiber System using Four-Plate Electrodes Structure

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Published: Mar 30, 2018
Keywords:
Electro-optic modulator, four plates structure

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S. Phaiboon
Department of Electrical Engineering, Faculty of Engineering, Mahidol University, Nakornpratom, Thailand.

Abstract

This paper proposes an electrooptic modulator for radio-over-fiber systems using four-plate electrodes structure. The radio-to-optic direct conversation (ROC) can convert a radio signal in to an optical signal with the same signal format. The modulator use an electo-optic crystal such as a LiNbO3 crystal with three plate on top and on plate on bottom as electrodes, which are applied the electric fields in x and z-axes to form guiding path in the crystal. With the specified dimensions, the electrooptic conversation factors of 8 deg/V and of 0.96 deg/V are obtained for z-axis and x-axis modulations, respectively.


Keywords:  Electro-optic modulator, four plates structure


Corresponding author: E-mail: cast@kmitl.ac.th


 

Article Details

Issue
Vol. 1 No. 1 (2001)
Section
Original Research Articles

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