Title :
OH reduction in preforms by isotope exchange
Author :
Modone, E. ; Roba, G.
Author_Institution :
CSELT¿Centro Studi e Laboratori Telecomunicazioni, Torino, Italy
Abstract :
To reduce OH-ion content in MCVD preforms a method, based on a thermal-activated deuterium-hydrogen isotope exchange, has been developed. Reaction has been applied on the internal walls of silica substrate tubes to produce a buffering layer against hydrogen diffusion. Experimental results are presented and process potentialities are discussed.
Keywords :
chemical vapour deposition; optical fibres; optical workshop techniques; OH reduction; hydrogen diffusion; modified chemical vapour deposition preforms; optical fibres; silica substrate tubes; thermal activated D-H isotope exchange;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19810569
