Title :
Acoustooptic attenuation filters based on tapered optical fibers
Author :
Feced, R. ; Alegria, C. ; Zervas, M.N. ; Laming, R.I.
Author_Institution :
Optoelectron. Res. Centre, Southampton Univ., UK
Abstract :
This paper studies the acoustooptic interaction induced by an acoustic flexural wave among the optical propagation modes supported by tapered optical fibers. We have investigated the evolution of the acoustooptic resonance condition as the fiber is progressively tapered, showing that the taper radius can be regarded as a new degree of freedom in the design of acoustooptic filters. Finally, we demonstrate a novel acoustooptic filter based on nonuniform tapers for dynamic gain flattening of optical fiber amplifiers
Keywords :
acousto-optical filters; optical fibre amplifiers; optical fibre filters; optical fibre losses; acoustic flexural wave; acoustooptic filter design; acoustooptic interaction; acoustooptic resonance condition; acoustooptic tapered optical fibre attenuation filters; dynamic gain flattening; optical fiber amplifiers; optical propagation modes; progressively tapered; taper radius; Acoustic waves; Optical attenuators; Optical coupling; Optical fiber couplers; Optical fiber devices; Optical fiber filters; Optical fiber polarization; Optical fibers; Radio frequency; Resonance;
Journal_Title :
Selected Topics in Quantum Electronics, IEEE Journal of
DOI :
10.1109/2944.806753
