Title :
Characterisation of Raman gain spectra in Yb:YAG-derived optical fibres
Author :
Dragic, P.D. ; Ballato, J.
Author_Institution :
Dept. of Electr. & Comput. Eng., Univ. of Illinois at Urbana-Champaign, Urbana, IL, USA
Abstract :
For the first time, Raman gain spectra are measured for three all-glass Yb:YAG crystal-derived optical fibres. It is shown that fibres derived from YAG have a reduced Raman gain relative to that of pure silica, partly because of a significant broadening of the silica Raman lines, and also partly because of yttria and alumina possessing a lower gain than that of silica. Such a designer-materials approach for suppression of stimulated Raman scattering can enable future high-energy and high-peak-power fibre laser systems.
Keywords :
optical fibre testing; optical glass; stimulated Raman scattering; ytterbium; yttrium compounds; Raman gain spectra; YAG:Yb; all-glass Yb:YAG crystal-derived optical fibres; designer-materials; high-energy high-peak-power fibre laser systems; stimulated Raman scattering;
Journal_Title :
Electronics Letters
DOI :
10.1049/el.2013.1386
