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http://dx.doi.org/10.5573/ieie.2016.53.1.029

A Study on the Integrated-Optical Electric-Field Sensor utilizing Ti:LiNbO3 Y-fed Balanced-Bridge Mach-Zehnder Interferometric Modulators  

Jung, Hongsik (Dept. of Electronic & Electrical Eng., Hongik University)
Publication Information
Journal of the Institute of Electronics and Information Engineers / v.53, no.1, 2016 , pp. 29-35 More about this Journal
Abstract
We have demonstrated a $Ti:LiNbO_3$ electro-optic electric-field sensors utilizing a $1{\times}2$ Y-fed balanced-bridge Mach-Zehnder interferometric (YBB-MZI) modulator which uses a 3-dB directional coupler at the output and dipole patch antenna. The operation and design were proved by the BPM simulation. A dc switching voltage of ~16.6 V and an extinction ratio of ~14.7 dB are observed at a wavelength of $1.3{\mu}m$. For a 20 dBm rf power, the minimum detectable electric-fields are ~1.12 V/m and ~3.3 V/m corresponding to a dynamic range of about ~22 dB and ~18 dB at frequencies 10 MHz and 50 MHz, respectively. The sensors exhibit almost linear response for the applied electric-field intensity from 0.29 V/m to 29.8 V/m.
Keywords
electric-field sensor; Y-fed Balanced-Bridge Mach-Zehnder interferometer(YBB-MZI); electrooptic effect; $Ti:LiNbO_3$ channel optical waveguide; integrated-optic device;
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Times Cited By KSCI : 1  (Citation Analysis)
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