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A Study on the Integrated-Optical Electric-Field Sensor utilizing Ti:LiNbO3 Y-fed Balanced-Bridge Mach-Zehnder Interferometric Modulators
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 Title & Authors
A Study on the Integrated-Optical Electric-Field Sensor utilizing Ti:LiNbO3 Y-fed Balanced-Bridge Mach-Zehnder Interferometric Modulators
Jung, Hongsik;
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We have demonstrated a electro-optic electric-field sensors utilizing a 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 . 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.
electric-field sensor;Y-fed Balanced-Bridge Mach-Zehnder interferometer(YBB-MZI);electrooptic effect; channel optical waveguide;integrated-optic device;
 Cited by
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