Measurement of high-photodarkening resistance in phosphate fiber doped with 12% Yb<sub>2</sub>O<sub>3</sub>

Y. W. Lee; S. Sinha; M. J. F. Digonnet; R. L. Byer; S. Jiang

doi:10.1117/12.774938

25 February 2008 Measurement of high-photodarkening resistance in phosphate fiber doped with 12% Yb₂O₃

Y. W. Lee, S. Sinha, M. J. F. Digonnet, R. L. Byer, S. Jiang

Proceedings Volume 6873, Fiber Lasers V: Technology, Systems, and Applications; 68731D (2008) https://doi.org/10.1117/12.774938
Event: Lasers and Applications in Science and Engineering, 2008, San Jose, California, United States

Abstract

We report the measurement of photodarkening in single-mode phosphate fibers with a Yb³⁺ concentrations of 7.1 × 10²⁶ m^-3 and 1.42 × 10²⁷ m^-3 (6 wt.% and 12 wt.% Yb₂O₃).We compare the photodarkening resistance of these phosphate fibers with that of three single-mode Yb³⁺-doped silica fibers. Our data shows that under strong pumping conditions, phosphate fibers allow Yb³⁺ concentrations that are least 6 times greater than the most photodarkening-resistant silica fibers to date without the onset of photodarkening at 660 nm.

Citation Download Citation

Y. W. Lee, S. Sinha, M. J. F. Digonnet, R. L. Byer, and S. Jiang "Measurement of high-photodarkening resistance in phosphate fiber doped with 12% Yb₂O₃", Proc. SPIE 6873, Fiber Lasers V: Technology, Systems, and Applications, 68731D (25 February 2008); https://doi.org/10.1117/12.774938

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