Title :
Fictive temperature measurement of single-mode optical-fiber core and cladding
Author :
Kim, Dong-Lae ; Tomozawa, Minoru ; Dubois, Sophie ; Orcel, Gérard
Author_Institution :
Kumgang Korea Chem. Co. Ltd., Kyungki, South Korea
fDate :
8/1/2001 12:00:00 AM
Abstract :
The fictive temperatures of single-mode optical-fiber core, along with its inner and outer cladding, were measured using an infrared (IR) reflection method on the fiber cross-sectional surface. To allow for usage of a larger IR beam size than the diameter of the fiber core, the cross-sectional area of the fiber was increased by slicing the fiber at an oblique angle, along approximately 3° off the fiber axis direction. The magnitude of the fictive temperature was estimated from the IR peak wavenumber-fictive temperature relation obtained for bulk glasses with the same compositions. The observed fictive temperature was in the range of 1150~1300°C for the core, 1450~1550°C for the inner cladding, and 1620~1660°C for the outer cladding and exhibited good correlation with the fiber cooling rate
Keywords :
optical fibre cladding; optical fibre testing; reflectivity; temperature measurement; 1150 to 1300 C; 1450 to 1550 C; 1620 to 1660 C; IR beam size; IR peak wavenumber-fictive temperature relation; bulk glasses; cross-sectional area; fiber axis direction; fiber cooling rate; fictive temperature; fictive temperature measurement; fictive temperatures; inner cladding; oblique angle; outer cladding; single-mode optical-fiber cladding; single-mode optical-fiber core; Chemicals; Glass; Mechanical factors; Optical fiber losses; Optical fibers; Optical reflection; Optical scattering; Optical surface waves; Silicon compounds; Temperature measurement;
Journal_Title :
Lightwave Technology, Journal of
