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Integrated-Optic Electric-Field Sensor Utilizing a Ti:LiNbO3 Y-fed Balanced-Bridge Mach-Zehnder Interferometric Modulator With a Segmented Dipole Antenna
- Authors
- Jung, Hongsik
- Issue Date
- Dec-2014
- Publisher
- OPTICAL SOC KOREA
- Keywords
- Electro-optical electric-field sensor; Ti: LiNbO3 optical channel waveguide; Lithium niobate; Y-fed balanced-bridge Mach-Zehnder interferometric optical modulator; Segmented dipole antenna
- Citation
- JOURNAL OF THE OPTICAL SOCIETY OF KOREA, v.18, no.6, pp.739 - 745
- Journal Title
- JOURNAL OF THE OPTICAL SOCIETY OF KOREA
- Volume
- 18
- Number
- 6
- Start Page
- 739
- End Page
- 745
- ISSN
- 1226-4776
- Abstract
- We have demonstrated a Ti:LiNbO3 electro-optic electric-field sensor utilizing a 1x2 Y-fed balanced-bridge Mach-Zehnder interferometric (YBB-MZI) modulator, which uses a 3-dB directional coupler at the output and has two complementary output waveguides. A de switching voltage of similar to 25 V and an extinction ratio of similar to 12.5 dB are observed at a wavelength of 1.3 mu m. For a 20 dBm rf input power, the minimum detectable electric fields are similar to 8.21, 7.24, and similar to 13.3 V/m, corresponding to dynamic ranges of similar to 10, similar to 12, and similar to 7 dB at frequencies of 10, 30, and 50 MHz respectively. The sensors exhibit almost linear response for an applied electric-field intensity from 0.29 V/m to 29.8 V/m.
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Related Researcher
- Jung, Hong sik
- Science & Technology (Department of Electronic & Electrical Convergence Engineering)