|
"JOURNAL OF RADIOELECTRONICS" N 2, 2000 | |
OPTICAL CHARACTERISTICS OF PHOSPHOSILICATE FIBERS
V.A. Aksenov, A.V.Belov,
E.M.Dianov, G.A.Ivanov, V.G.Plotnichenko
Institute of Radio Engineering and
Electronics of RAS, Fryasino, Moscow Region,
General Physics Institute of RAS, Moscow
Optical characteristics of phosphosilicate preforms and fibers with high concentration of phosphorus oxide (12-19 mol.%) were investigated. The dependence of the refractive index of phosphosilicate glass from concentration of phosphorus oxide, the optical loss in the spertral range 0.6-2.1 and 2.5-4.5 mkm and Raman scattering were measured . Based on analyses of these measurements the single-mode optical fibers with concentration of phosphorus oxide up to 19 mol.% were fabricated. The minimal optical loss of fiber with concentration of phosphorus oxide 12 mol..% was 3 and 1.9 dB/km at 1.06 and 1.24 mkm, respectively. The fiber was used for development of the Raman fiber laser at 1.24 and 1.48 mkm.
 |
xxx |  |