Whispering-gallery waves in optical fibres

The process of excitation of whispering-gallery waves (WGWs) in optical fibres (microcavities) with the help of a bitapered fibre is analysed. It is shown that useful information on the WGW modes can be obtained from the spectrograms recorded by scanning the exciting-radiation frequency. Based on th...

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Bibliographic Details
Published in:Quantum electronics (Woodbury, N.Y.) N.Y.), 2002-08, Vol.32 (8), p.738-742
Main Authors: Sychugov, V A, Torchigin, V P, Tsvetkov, M Yu
Format: Article
Language:English
Subjects:
APPROXIMATIONS
CALCULATION METHODS
CAVITY RESONATORS
CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY
ELECTRONIC EQUIPMENT
ENERGY-LEVEL TRANSITIONS
EXCITATION
FIBERS
FREQUENCY MODULATION
MODULATION
OPTICAL FIBERS
RESONATORS
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Summary:The process of excitation of whispering-gallery waves (WGWs) in optical fibres (microcavities) with the help of a bitapered fibre is analysed. It is shown that useful information on the WGW modes can be obtained from the spectrograms recorded by scanning the exciting-radiation frequency. Based on the geometrical-optic approximation, the longitudinal sizes of the WGW modes are estimated and it is shown that the ultimate diameter of the fibre exists for optical fibres (microcavities) where a mode can be still excited with the help of a bitapered fibre. (fibre optics. optical fibres)
ISSN:1063-7818
1468-4799
DOI:10.1070/QE2002v032n08ABEH002281