Title :
1-D acoustic cavity in optical fibers using two acoustic Bragg gratings
Author :
Díez, A. ; Kakarantzas, G. ; Birks, T.A. ; Russell, P. St J
Author_Institution :
Dept. de Fisica Aplicada, Valencia Univ., Spain
Abstract :
We report the fabrication and characterization of a one-dimensional acoustic cavity made on a tapered single-mode optical fiber with two acoustic mirrors. The mirrors are acoustic Bragg gratings formed by modulating the fiber diameter periodically. The cavity exhibits resonances with quality factors of around 300. Higher Q factors are achievable by increasing the number of periods in the gratings. A simple transfer matrix model successfully simulates the acoustic properties of the cavity. This type of acoustic cavity is of interest for its potential applications in acoustooptic components and the development of devices based on stimulated Brillouin scattering.
Keywords :
Bragg gratings; Q-factor; acoustic resonators; acousto-optical devices; acousto-optical modulation; mirrors; optical fibre fabrication; stimulated Brillouin scattering; 1D acoustic cavity; Q factors; acoustic Bragg gratings; acoustic cavity; acoustic mirrors; acoustic properties; acoustooptic components; cavity; characterization; fabrication; gratings; one-dimensional acoustic cavity; optical fibers; quality factors; resonances; simple transfer matrix model; stimulated Brillouin scattering; tapered single-mode optical fiber; Acoustic applications; Acoustic devices; Bragg gratings; Brillouin scattering; Fiber gratings; Mirrors; Optical device fabrication; Optical fibers; Q factor; Resonance;
Journal_Title :
Photonics Technology Letters, IEEE
