DocumentCode :
1127852
Title :
Loss reduction in fluorine-doped SM- and high N.A.-PCVD fibers
Author :
Bachmann, P.K. ; Geittner, P. ; Leers, D. ; Wilson, H.
Author_Institution :
Philips Gmbtt Forschungslaboratorium Aachen, Aachen West Germany
Volume :
4
Issue :
7
fYear :
1986
fDate :
7/1/1986 12:00:00 AM
Firstpage :
813
Lastpage :
817
Abstract :
SM and GI fibers have been prepared by the low-pressure PCVD process using fluorine as the main dopant and small amounts of GeO2 as codopant. Compared to pure fluorine doping, these fibers showed markedly improved optical properties. High N.A. ( 
percent) GI fibers with Rayleigh scattering losses as low as 1.0 dB μm4/ km as well as "deeply depressed cladding" SM fibers with scattering coefficients of 0.85 dB μm4/km have been prepared. Simultaneously, a reduced sensitivity of the optical losses on the drawing conditions and improved mechanical properties have been observed.
percent) GI fibers with Rayleigh scattering losses as low as 1.0 dB μm4/ km as well as "deeply depressed cladding" SM fibers with scattering coefficients of 0.85 dB μm4/km have been prepared. Simultaneously, a reduced sensitivity of the optical losses on the drawing conditions and improved mechanical properties have been observed.Keywords :
Optical fiber losses; Optical fiber materials/fabrication; Mechanical factors; Optical fiber losses; Optical fibers; Optical losses; Optical scattering; Optical sensors; Preforms; Rayleigh scattering; Samarium; Silicon compounds;
fLanguage :
English
Journal_Title :
Lightwave Technology, Journal of
Publisher :
ieee
ISSN :
0733-8724
Type :
jour
DOI :
10.1109/JLT.1986.1074805
Filename :
1074805
Link To Document :
