Localisation of light and spectral broadening of femtosecond laser pulses in a fibre with a minimal-microstructure cladding

Microstructure optical fibres with a cladding consisting of a single cycle of air holes and the minimum core diameter of 1 {mu}m have been fabricated and studied. Guided modes supported by this fibre are characterised by a high light localisation degree and display the C{sub 6{nu}} point-group spati...

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Bibliographic Details
Published in:Quantum electronics (Woodbury, N.Y.) N.Y.), 2002-06, Vol.32 (6), p.542-544
Main Authors: Zheltikov, Aleksei M, Zhou, Ping, Temnov, V V, Kondrat'ev, Yu N, Bagayev, S N, Shevandin, V S, Dukel'skii, K V, Khokhlov, A V, Smirnov, Valerii B, Tarasevitch, A P, Linde, D von der
Format: Article
Language:English
Subjects:
AIR
CLADDING
CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS
DEPOSITION
ELECTROMAGNETIC RADIATION
FIBERS
FLUIDS
GASES
LASERS
LINE BROADENING
MICROSTRUCTURE
OPTICAL FIBERS
OPTICAL PROPERTIES
PHYSICAL PROPERTIES
PULSES
RADIATIONS
REFRACTIVE INDEX
SURFACE COATING
VISIBLE RADIATION
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Summary:Microstructure optical fibres with a cladding consisting of a single cycle of air holes and the minimum core diameter of 1 {mu}m have been fabricated and studied. Guided modes supported by this fibre are characterised by a high light localisation degree and display the C{sub 6{nu}} point-group spatial symmetry of the transverse field distribution. A high refractive index step between the core and the cladding in the created fibres strongly confines the light field in the fibre core. The spectral broadening of low-power femtosecond laser pulses in the fibre of this type is experimentally studied. (nonlinear optical phenomena)
ISSN:1063-7818
1468-4799
DOI:10.1070/QE2002v032n06ABEH002239