Acoustooptic attenuation filters based on tapered optical fibers

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 radiu...

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Bibliographic Details
Published in:IEEE journal of selected topics in quantum electronics 1999-09, Vol.5 (5), p.1278-1288
Main Authors: Feced, R., Alegria, C., Zervas, M.N., Laming, R.I.
Format: Article
Language:English
Subjects:
Acoustic waves
Optical attenuators
Optical coupling
Optical fiber couplers
Optical fiber devices
Optical fiber filters
Optical fiber polarization
Optical fibers
Radio frequency
Resonance
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Summary: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.
ISSN:1077-260X
1558-4542
DOI:10.1109/2944.806753