Title :
High pressure H2 loading as a technique for achieving ultrahigh UV photosensitivity and thermal sensitivity in GeO2 doped optical fibres
Author :
Lemaire, P.J. ; Atkins, R.M. ; Mizrahi, V. ; Reed, W.A.
Author_Institution :
AT&T Bell Labs., Murray Hill, NJ, USA
fDate :
6/24/1993 12:00:00 AM
Abstract :
High pressure ´hydrogen loading´ has been used to sensitise standard singlemode fibres, resulting in the largest reported UV induced index changes for low GeO2 fibres. Grating bandwidths of 4 nm and peak nu ns of 5.9*10-3 have been reproducibly achieved. Substantial index changes have also been achieved by rapidly heating H2 loaded fibres of various compositions.
Keywords :
diffraction gratings; germanium compounds; high-pressure techniques; optical fibre fabrication; photorefractive effect; silicon compounds; 20 to 750 atm; 21 to 75 degC; SiO 2-GeO 2 optical fibres; UV induced index changes; grating bandwidth; high pressure H 2 loading; phase gratings; singlemode fibres; thermal sensitivity; ultrahigh UV photosensitivity;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19930796
