Control of defects in optical fibers-a study usingcathodoluminescence spectroscopy |
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| Authors: | Atkins GR Zhen Hua Wang McKenzie DR Sceats MG Poole SB Simmons HW |
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| Affiliation: | Opt. Fibre Technol. Centre, Sydney Univ., NSW; |
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| 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 |
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