Title :
Tunable Photonic Microwave Filter With Single Bandpass Based on a Phase-Shifted Fiber Bragg Grating
Author :
Palací, Jesus ; Pérez-Millan, Pere ; Villanueva, Guillermo Eduardo ; Cruz, José L. ; Andrés, Miguel V. ; Martí, Javier ; Vidal, Borja
Author_Institution :
Nanophotonics Technol. Center, Univ. Politec. de Valencia, Valencia, Spain
Abstract :
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.
Keywords :
Bragg gratings; band-pass filters; microwave filters; microwave photonics; optical control; optical fibres; optical filters; optical modulation; optical phase shifters; optical tuning; piezoelectric transducers; dynamic control; local phase shift; optical resonance; optical single-sideband modulation; periodic structure; phase-shifted fiber bragg grating; piezoelectric transducer; resonance wavelength; single bandpass filter; tunable photonic microwave filter; Band pass filters; Biomedical optical imaging; Microwave filters; Microwave photonics; Microwave technology; Optical fiber filters; Optical fibers; Optical filters; Optical refraction; Optical sensors; Optical signal processing; Resonance; Fiber Bragg grating (FBG); microwave photonics; optical signal processing;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2010.2063019
