Title:
DEVICE FOR PROTECTING FIBRE LINES AGAINST DESTRUCTION BY LASER RADIATION
Document Type and Number:
WIPO Patent Application WO2004008665
Kind Code:
A8
Abstract:
The invention relates to laser engineering and fibre optics. The inventive device for protecting fibre lines against the destruction thereof by laser radiation is embodied in the form of the section of a light-guide which comprises the cladding (6) and the core (7) thereof. The position (8) indicates dashed lines which show the position of the field of light-guide mode. The distance between said dashed lines is equal to the diameter (D) of the field of light-guide mode. The position (10) indicates the section of the light-guide having the reduced diameter of a reflecting cladding. Said device operates as follows: a pressure of 10<4> atm. is produced by a high temperature in the core (7) during the propagation of an optical discharge wave. The value of 10<4> is close to the destruction limit of the light-guide material and to the stop of the optical discharge wave. For this reason, the fibre lines are provided with at least one section of the light-guide which has a reduced thickness quartz cladding and undeformed core.
Inventors:
DIANOV EVGENY MIKHAILOVICH (RU)
BUFETOV IGOR ALEXEEVICH (RU)
FROLOV ARTEM ALEXEEVICH (RU)
BUFETOV IGOR ALEXEEVICH (RU)
FROLOV ARTEM ALEXEEVICH (RU)
Application Number:
PCT/RU2002/000561
Publication Date:
May 21, 2004
Filing Date:
December 26, 2002
Export Citation:
Assignee:
NAUCHNY TS VOLOKONNOI OPTIKI P (RU)
DIANOV EVGENY MIKHAILOVICH (RU)
BUFETOV IGOR ALEXEEVICH (RU)
FROLOV ARTEM ALEXEEVICH (RU)
DIANOV EVGENY MIKHAILOVICH (RU)
BUFETOV IGOR ALEXEEVICH (RU)
FROLOV ARTEM ALEXEEVICH (RU)
International Classes:
H04B10/12; C03C13/04; G02B6/00; G02B6/02; G02B6/38; (IPC1-7): H04B10/12; G02B6/00
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