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Tunable Photonic Microwave Filter With Single Bandpass Based on a Phase-Shifted Fiber Bragg Grating

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7 Author(s)
Palaci, J. ; Nanophotonics Technol. Center, Univ. Politec. de Valencia, Valencia, Spain ; Pérez-Millán, P. ; Villanueva, G.E. ; Cruz, J.L.
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A novel tunable photonic microwave single bandpass filter based on the optical resonance originated by a local phase shift introduced in the periodic structure of a fiber Bragg grating is proposed. Dynamic control of the phase shift is obtained employing a piezoelectric transducer in order to stretch the grating, thus changing the resonance wavelength. A photonic microwave filter is obtained by using an optical single-sideband modulation. Experimental results are provided in order to prove the concept.

Published in:

Photonics Technology Letters, IEEE  (Volume:22 ,  Issue: 19 )