Open AccessThermal treatment of silica optical fibers with CO2-laser radiation
Author(s) -
S. Khotiaintsev,
A.N. Castro-Martinez
Publication year - 2011
Publication title -
èlektronika i svâzʹ
Language(s) - English
Resource type - Journals
eISSN - 2312-1807
pISSN - 1811-4512
DOI - 10.20535/2312-1807.2011.16.4.246655
Subject(s) - materials science , optical fiber , optics , fiber laser , silica fiber , fiber bragg grating , laser , hard clad silica optical fiber , polarization maintaining optical fiber , fiber , optoelectronics , fiber optic sensor , composite material , physics
We investigate theoretically and experimentally the effect of high-power CO2–laser radiation on silica optical fibers. We show that it takes several tens of milliseconds to heat the standard single–mode silica optical fiber to the fusing temperature of silica with the focused radiation of the CO2 laser of an output power of about 5 W. A point by point exposure of the optical fiber to the focused radiation of the CO2 laser under simultaneous axial tension results in a periodic necking of the optical fiber. Such an alteration of fiber parameters constitutes the Long Period Fiber Grating