Title :
Reflectivity and Bandwidth Modulation of Fiber Bragg Gratings in a Suspended Core Fiber by Tunable Acoustic Waves
Author :
Silva, Ricardo E. ; Becker, Matthias ; Hartung, Alexander ; Rothhardt, Manfred ; Pohl, Alexandre A. P. ; Bartelt, Hartmut
Author_Institution :
Leibniz Inst. of Photonic Technol. (IPHT), Jena, Germany
Abstract :
The acousto-optic modulation of fiber Bragg gratings in a four-hole suspended core fiber is experimentally demonstrated. Strong modulations with a reflectivity amplitude decrease by up to 67% and a 57% bandwidth increase in the Bragg resonance are obtained for gratings of 0.26- and 1-nm 3-dB bandwidths, respectively. The reduction of the required acoustic power for achieving the acousto-optic modulation compared to conventional solid-core single-mode fibers points to more efficient modulator devices in suspended core fibers.
Keywords :
Bragg gratings; acousto-optical devices; acousto-optical effects; optical fibres; optical modulation; reflectivity; Bragg resonance; acousto-optic modulation; bandwidth modulation; fiber Bragg gratings; four-hole suspended core fiber; reflectivity; suspended core fiber; tunable acoustic waves; Bandwidth; Fiber gratings; Gratings; Modulation; Optical fiber devices; Reflectivity; Acousto-optic devices; Fiber Bragg gratings; Microstructured fibers; fiber Bragg gratings; microstructured fibers;
Journal_Title :
Photonics Journal, IEEE
DOI :
10.1109/JPHOT.2014.2366161
