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Wireless Microwave-Optical Signal Conversion in Quasi-Phase-Matching Electro-Optic Modulators Using Gap-Embedded Patch-Antennas
Yusuf Nur WIJAYANTO Hiroshi MURATA Yasuyuki OKAMURA
IEICE TRANSACTIONS on Electronics
Publication Date: 2013/02/01
Online ISSN: 1745-1353
Print ISSN: 0916-8516
Type of Manuscript: Special Section PAPER (Special Section on Recent Progress in Microwave and Millimeter-Wave Photonics Technology)
optical modulator, quasi-phase-matching, electro-optic effect, patch antenna,
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Quasi-phase-matching (QPM) electro-optic modulators using gap-embedded patch-antennas were proposed for improving wireless microwave-optical signal conversion. The proposed QPM devices can receive wireless microwave signals and convert them to optical signals directly. The QPM structures enable us to have twice antenna elements in the fixed device length. The device operations with improved conversion efficiency of 10 dB were experimentally demonstrated at a wireless signal frequency of 26 GHz. The proposed QPM devices were also tested to a wireless-over-fiber link.