Title :
Nonsymmetrical modified chemical vapor deposition (N-MCVD) process [optical fibres]
Author :
Doupovec, Juraj ; Yarin, Alexander L.
Author_Institution :
Inst. of Phys., Slovak Acad. of Sci., Bratislava, Czechoslovakia
fDate :
6/1/1991 12:00:00 AM
Abstract :
A novel, simple fabrication method of circularly and axially nonsymmetrical MCVD layers is proposed. The thermophoretic mechanism is regulated by means of two linear heaters and coolers, respectively which change the circular symmetry of the thermophoretic deposition mechanism of the standard MCVD process. A theoretical description of the thermophoretic deposition mechanism inside the substrate tube in some simplified conditions is given. The differential equations governing mass transport through the thermophoretic effect are solved in closed form. As an example a preform of the dumbbell form core has been fabricated
Keywords :
chemical vapour deposition; optical fibres; optical workshop techniques; axially nonsymmetrical MCVD layers; circular symmetry; coolers; differential equations; dumbbell form core; fabrication method; linear heaters; mass transport; nonsymmetrical modified chemical vapor deposition; substrate tube; thermophoretic deposition mechanism; Birefringence; Chemical vapor deposition; Ear; Fluid flow; Optical device fabrication; Optical fiber polarization; Optical fibers; Shape; Surface treatment; Temperature distribution;
Journal_Title :
Lightwave Technology, Journal of
