Title :
Control of defects in optical fibers-a study using cathodoluminescence spectroscopy
Author :
Atkins, Graham R. ; Wang, Zhen Hua ; McKenzie, David R. ; Sceats, Mark G. ; Poole, Simon B. ; Simmons, Hugh W.
Author_Institution :
Opt. Fibre Technol. Centre, Sydney Univ., NSW, Australia
fDate :
11/1/1993 12:00:00 AM
Abstract :
Cathodoluminescence spectra of germanosilicate and silicate glass in modified chemical vapor deposition (MCVD) and vapor-phase axial deposition (VAD) preforms are presented, and the influence of co-doping with phosphorus, boron, and fluorine on the peaks associated with the E´ and the so-called drawing-induced defects are studied. A simple reaction scheme is developed which illustrates that these defects can be controlled by the electron donor (P) and scavenger (B,F) properties of the co-dopant
Keywords :
cathodoluminescence; chemical vapour deposition; drawing (mechanical); optical fibre fabrication; optical fibre testing; MCVD; boron; cathodoluminescence spectra; cathodoluminescence spectroscopy; co-dopant; co-doping; defects; drawing-induced defects; electron donor; fluorine; germanosilicate glass; modified chemical vapor deposition; optical fibers; phosphorus; preforms; reaction scheme; scavenger; silicate glass; vapor-phase axial deposition; Australia; Boron; Electrons; Glass; Helium; Optical control; Optical fibers; Optical harmonic generation; Preforms; Spectroscopy;
Journal_Title :
Lightwave Technology, Journal of
