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Electro-optic microwave-lightwave converters utilising quasi-phase-matching array of patch antennas with gap

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3 Author(s)
Wijayanto, Y.N. ; Grad. Sch. of Eng. Sci., Osaka Univ., Toyonaka, Japan ; Murata, H. ; Okamura, Y.

Proposed is a new electro-optic microwave-lightwave converter using an optical waveguide and a quasi-phase-matching (QPM) array of patch antennas embedded with a gap. A wireless microwave signal can be received and directly converted to a lightwave signal with low microwave distortion through optical modulation by use of the proposed device. Furthermore, by adopting the QPM structures, the transit-time effect is compensated for and conversion efficiency can be improved. In the experiment using a fabricated device, the conversion efficiency was improved by 10 dB.

Published in:

Electronics Letters  (Volume:48 ,  Issue: 1 )