DOPANT INCORPORATION IN SINGLE-CRYSTAL FIBER GROWTH BY THE LASER-HEATED MINIATURE PEDESTAL GROWTH TECHNIQUE

Authors
SHARP JH HAN TPJ HENDERSON B ILLINGWORTH R RUDDOCK IS
Citation
Jh. Sharp et al., DOPANT INCORPORATION IN SINGLE-CRYSTAL FIBER GROWTH BY THE LASER-HEATED MINIATURE PEDESTAL GROWTH TECHNIQUE, Journal of crystal growth, 131(3-4), 1993, pp. 457-464
Citations number
13
Categorie Soggetti
Crystallography
Journal title
Journal of crystal growth → ACNP
ISSN journal
00220248
Volume
131
Issue
3-4
Year of publication
1993
Pages
457 - 464
Database
ISI
SICI code
0022-0248(1993)131:3-4<457:DIISFG>2.0.ZU;2-6
Abstract
A theoretical model of single-crystal fibre growth by laser-heated min iature pedestal growth has been developed to account for the transfer of dopant from the source rod to the growing fibre. This model predict s the time evolution of the melt dopant concentration when the source rod dopant concentration is axially non-uniform. From this the axial d istribution of dopant in the final grown fibre may be predicted. This model has been experimentally confirmed and an estimate of the evapora tion time constant of Ti in the growth of Ti:Al2O3 fibres made.