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TEM Investigation of the Core/Cladding Interface of La2O3-Al2O3-SiO2 Glasses for High Power Fiber Lasers

Published online by Cambridge University Press:  11 February 2011

Shang-Cong Cheng  and
Matthew J. Dejneka
Shang-Cong Cheng
Affiliation:
Science & Technology Division, Corning Incorporated Corning, New York 14831, USA
Matthew J. Dejneka
Affiliation:
Science & Technology Division, Corning Incorporated Corning, New York 14831, USA
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Abstract

For fabricating Yb3+ doped La2O3-Al2O3-SiO2 glasses for high-powered fiber lasers, it is critical to choose the right core glass composition to obtain a high numerical aperture and to avoid phase separation. TEM techniques were used to study the relationship between the core composition and phase separation. In the study, inter-diffusion between the core and cladding glasses was found. The inter-diffusion caused large density fluctuation in the region of the core/cladding interface in fibers containing relatively high concentrations of La2O3. The TEM results were used to optimize the chemical composition of the core glass for high-power fiber lasers.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 751: Symposium Z – Structure-Property Relationships of Oxide Surfaces and Interfaces II , 2002 , Z3.8
Copyright
Copyright © Materials Research Society 2003

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References

REFERENCES

1. Dejneka, M. and Samson, B., MRS Bull. 24 [9] 39 (1999).Google Scholar
2. Dejneka, M. et al., J. Am. Ceram. Soc. 85 [5] 1100 (2002).Google Scholar
3. Libera, M., Nguyen, T. A. and Hwang, C. in Specimen Preparation for Transmission Electron Microscopy of Materials, edited by Anderson, Ron, (Mater. Res. Soc. Proc. 199, Pittsburgh, PA, 1990) pp.243–251.Google Scholar
4. Williams, D. and Carter, B., Transmission Electron Microscopy, Plenum Press, New York, 1996.Google Scholar
5. Keiser, G., Optical Fiber Communications, McGraw-Hill, Inc., New York, 1991.Google Scholar
6. Galakhov, F., Gorovaya, B., Demskaya, E. and Prokhorova, T., Fiz. Khim. Stekla. 6 [1] 46 (1980).Google Scholar