Title :
Optical gain spectrum of GeO2-SiO2 Raman fibre amplifiers
Author :
Davey, S.T. ; Williams, D.L. ; Ainslie, B.J. ; Rothwell, W.J.M. ; Wakefield, B.
Author_Institution :
British Telecommun. Res. Labs., Ipswich, UK
fDate :
12/1/1989 12:00:00 AM
Abstract :
The spectral dependence of the stimulated Raman gain coefficient for the GeO2-SiO2 glass system is deduced by measurement of the spontaneous Raman scattered light from optical fibre preforms doped with up to 65 mol.% germania. For Raman shifts in the range 100-600 cm-1 the Raman cross-section is found to depend linearly on the germania concentration. This data enables the computation of the Raman gain spectra for a given core germania concentration, and as examples the gain properties in the 1.5-1.6 μm low-loss optical telecommunications window of silica-based Raman fibre amplifiers doped with 3 and 22 mol.% germania are discussed
Keywords :
Raman lasers; Raman spectra of inorganic solids; fibre optics; germanate glasses; optical fibres; stimulated Raman scattering; 1.5 to 1.6 micron; GeO2-SiO2 Raman fibre amplifiers; Raman cross-section; Raman gain spectra; Raman lasers; Raman shifts; SiO2:GeO2 glass; core germania concentration; germania concentration; germania doped silica glass; glass system; low-loss optical telecommunications window; optical fibre preforms; spontaneous Raman scattered light; stimulated Raman gain coefficient;
Journal_Title :
Optoelectronics, IEE Proceedings J
