We have investigated waveguide writing in Er-Yb doped zinc polyphosphate glass using a femtosecond laser with a repetition rate of 1 KHz. We find that fabrication of good waveguides requires a glass composition with an O/P ratio of 3.25. The dependence on laser writing parameters including laser fluence, focusing conditions, and scan speed is reported. Waveguide properties together with absorption and emission data indicate that these glasses can be used for the fabrication of compact, high gain amplifying devices.
L. B. Fletcher et al., "Effects of Rare-Earth Doping on Femtosecond Laser Waveguide Writing in Zinc Polyphosphate Glass," Journal of Applied Physics, vol. 112, American Institute of Physics (AIP), Jul 2012.
The definitive version is available at https://doi.org/10.1063/1.4739288
Materials Science and Engineering
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© 2012 American Institute of Physics (AIP), All rights reserved.
01 Jul 2012