Boyland, A.J., Webb, A.S., Yoo, S., Mountfort, F.H., Kalita, M.P., Standish, R.J., Sahu, J.K., Richardson, D.J. and Payne, D.N.
Optical fiber fabrication using novel gas-phase deposition technique
IEEE Journal of Lightwave Technology, 29, (6), . (doi:10.1109/JLT.2011.2109371).
We report a highly versatile chemical-in-crucible preform fabrication technique suitable for gas-phase deposition of doped optical fibers. Aluminosilicate and ytterbium-doped phosphosilicate fibers are presented demonstrating the technique and its potential for realizing complex fiber designs that are suitable for the next generation of high-power fiber devices. The results show aluminum-doped fiber with numerical aperture of 0.28 and ytterbium-doped fiber with a measured slope efficiency of 84% with respect to pump launch power.
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