Defect engineering in doped silica fiber: are there good and bad defects?

Jay R. Simpson; Paul F. Wysocki; Matthijs M. Broer; Robert M. Atkins; Paul J. Lemaire

doi:10.1117/12.168609

15 February 1994 Defect engineering in doped silica fiber: are there good and bad defects?

Jay R. Simpson, Paul F. Wysocki, Matthijs M. Broer, Robert M. Atkins, Paul J. Lemaire

Proceedings Volume 2073, Fiber Laser Sources and Amplifiers V; (1994) https://doi.org/10.1117/12.168609
Event: Optical Tools for Manufacturing and Advanced Automation, 1993, Boston, MA, United States

Abstract

The defect driven properties of erbium doped fiber amplifier devices are reviewed examining the role of the host dopants, aluminum, phosphorus and germanium, typically used in these applications. The effects of added loss on the performance of amplifiers are shown by way of modeling. Measurements of the gamma and UV radiation induced absorption are presented to show the generic host glass composition effects on radiation induced loss and their relative magnitude. In contrast to these `bad' defects, the UV induced effects in H₂ impregnated fiber are discussed in their role as `good' defects, allowing the more efficient writing of UV induced gratings.

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Jay R. Simpson, Paul F. Wysocki, Matthijs M. Broer, Robert M. Atkins, and Paul J. Lemaire "Defect engineering in doped silica fiber: are there good and bad defects?", Proc. SPIE 2073, Fiber Laser Sources and Amplifiers V, (15 February 1994); https://doi.org/10.1117/12.168609

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KEYWORDS

Optical amplifiers

Ultraviolet radiation

Amplifiers

Absorption

Erbium

Fiber amplifiers

Radiation effects

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