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Scientific article
English

Distributed gain measurements in Er-doped fibers with high resolution and accuracy using an optical frequency domain reflectometer

Published inJournal of lightwave technology, vol. 18, no. 12, p. 2127-2132
Publication date2000
Abstract

For critical erbium-doped fiber amplifier (EDFA) design, e.g., gain tilt optimization in WDM booster amplifiers, knowledge of the gain distribution within the active fiber can present a valuable information. Among the different techniques to evaluate the distributed gain in active fibers, the technique of optical frequency domain reflectometry seems most promising as it is a non-destructive measurement method well matched to the task due to its dynamic range, resolution, and range. Moreover, background light from ASE or residual pump light is strongly rejected due to the coherent detection scheme employed. Using different erbium-doped fibers with strongly varying doping levels and confinements, we demonstrate the excellent accuracy and reproducibility of the technique.

Keywords
  • Fiber optics amplifiers and oscillators
  • Metrology
  • Nondestructive testing.
Citation (ISO format)
WEGMULLER, Mark et al. Distributed gain measurements in Er-doped fibers with high resolution and accuracy using an optical frequency domain reflectometer. In: Journal of lightwave technology, 2000, vol. 18, n° 12, p. 2127–2132. doi: 10.1109/50.908823
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ISSN of the journal0733-8724
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