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Dynamic control of a phase-shifted FBG through acousto-optic modulation

Authors:	CAF Marques RA Oliveira AAP Pohl RN Nogueira

Institution:	^a Instituto de Telecomunicações, Pólo de Aveiro, 3810-193 Aveiro, Portugal ^b Federal University of Technology, Parana, Av. Sete de Setembro, 3165, Curitiba, PR, CEP 80230-901, Brazil ^c Interdisciplinary Photonics Laboratories (iPL), University of Sydney, The School of Chemistry, F09, Camperdown, Sydney, NSW 2006, Australia ^d Nokia Siemens Networks Portugal S.A., 2720-093, Portugal

Abstract:	When an acoustic wave excites a phase-shifted fiber Bragg grating (PSFBG) several properties of the transmission/reflection spectrum, such as transmission notch depth and spectral bandwidth are influenced. In this work, a study on the effect of acoustic waves in PSFBGs is presented. The results are supported by theoretical simulation and experimental work. The technique can be used for different applications, such as in a fast tunable optical notch filter.

Keywords:	Acousto-optic modulation (AOM) Phase-shifted fiber Bragg grating (PSFBG) Acoustic wave
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