Share Email Print
cover

Proceedings Paper

Transmission behavior of silica core: fluorine-doped cladding fibers in the visible and ultraviolet region
Author(s): Sonja Unger; Johannes Kirchhof; Siegmund Schroeter; Anka Schwuchow; Holger Frost
Format Member Price Non-Member Price
PDF $14.40 $18.00
cover GOOD NEWS! Your organization subscribes to the SPIE Digital Library. You may be able to download this paper for free. Check Access

Paper Abstract

Pure silica core fibers with a high OH content are believed to be the best fiber type for the visible and ultaviolet region concerning low attenuation and high power stability. Here we present systematic investigations of silica core - fluorine doped cladding fibers made by MCVD, where the composition of the fiber core was slightly modified by doping with germanium, phosphorus, boron, aluminium, and fluorine at a low level of typically 0.5 mol%. Moreover, the influence of hydrogen treatment was studied. The attenuation level in the visible region, the defect band at 330 nm and the oxygen deficiency bands around 250 nm could be correlated with the preform modifications in a systematic manner. Interaction mechanisms between the defect bands and with the OH groups are discussed. The stability of the fiber against high power blue light in the Watt range was investigated. By suitably modified fibers, stability times could be realized much longer than in conventional high OH fibers.

Paper Details

Date Published: 26 March 2002
PDF: 12 pages
Proc. SPIE 4616, Optical Fibers and Sensors for Medical Applications II, (26 March 2002); doi: 10.1117/12.463809
Show Author Affiliations
Sonja Unger, Institut fuer Physikalische Hochtechnologie e.V. (Germany)
Johannes Kirchhof, Institut fuer Physikalische Hochtechnologie e.V. (Germany)
Siegmund Schroeter, Institut fuer Physikalische Hochtechnologie e.V. (Germany)
Anka Schwuchow, Institut fuer Physikalische Hochtechnologie e.V. (Germany)
Holger Frost, Schneider Laser Technologies AG (Germany)


Published in SPIE Proceedings Vol. 4616:
Optical Fibers and Sensors for Medical Applications II
Israel Gannot, Editor(s)

© SPIE. Terms of Use
Back to Top