Title :
Reduction of OH absorption loss by deuteration in Na2O-Al2O3-SiO2 glass fibre
Author :
Tsujikawa, K. ; Ohashi, M.
Author_Institution :
NTT Tech. Assistance & Support Center, Tokyo, Japan
fDate :
10/15/1998 12:00:00 AM
Abstract :
The authors investigated the effect of deuteration on reducing OH absorption loss for Na2O-Al2O3-SiO2 (NAS) glass, which is a candidate for use in fabricating ultra-low-loss fibre. A deuterated NAS glass fibre was fabricated using the double crucible method and a loss reduction of 800 dB/km was achieved at a wavelength of 1.55 μm. Further, the authors found that a loss increase above 1.5 μm in the NAS glass fibre was caused by the absorption of hydrogen-bonded OH groups
Keywords :
aluminosilicate glasses; hydrogen bonds; impurity absorption spectra; optical fibre fabrication; optical fibre losses; optical glass; sodium compounds; 1.55 micron; NAS glass fibre; Na2O-Al2O3-SiO2:OH; OH absorption loss; deuteration; double crucible method; fabrication; hydrogen bonding;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19981447
