Title :
Low-OH MCVD fibres without a barrier layer using OH ¿ OD-exchanged substrate tubes
Author :
Shang, Hen-Tai ; Stone, J. ; Burrus, C.A.
Author_Institution :
Bell Laboratories, Norcross, USA
Abstract :
The effect of deuteration (OH ¿ OD exchange) of the MCVD substrate tube on the absorption loss in fibres was studied using tubes of moderate and low OH content. The OH absorption at 1.39 ¿m was reduced from 4 dB/km and 0.9 dB/km to 1 dB/km and 0.7 dB/km, respectively, in fibres made without a barrier layer using deuterated tubes.
Keywords :
chemical vapour deposition; ion exchange; optical fibres; MCVD substrate tube; OD; OH absorption; absorption loss; barrier layer; deuterated tubes; deuteration; optical fibres;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19830068
