Scattering loss in Nd-doped silica based optical fibers
Authors: Mahmoud, F.; Müller, H-R.; Mörl, K.; Bartelt, H.
Source: Optik International Journal for Light and Electron Optics, Volume 113, Number 10, November 2002 , pp. 421-424(4)
Publisher: Urban & Fischer
Rare-earth doped fibers suffer from relatively high attenuation in comparison to conventional communication fibers. In order to improve the properties of such fibers, understanding of the mechanisms involved in scattering effects is of great importance. The effect of Nd-doping, Al-codoping and of the drawing temperature on the scattering effect was investigated for several different optical fibers. To this end a measuring setup was realized which allows absolute measurements of the scattering coefficient at different positions along a fiber. Also separation of total attenuation and scattering effects is possible. The presented results indicate scattering effects as primary source for increased attenuation compared with undoped fibers.
Document Type: Original Article
Affiliations: Institute for Physical High Technology, Winzerlaer Str. 10, 07751 Jena, Germany
Publication date: November 2002