title: Excited-state absorption in various bismuth-doped fibers.
abstract: Excited-state absorption (ESA) in various bismuth-doped fibers (BDFs) was investigated. No significant ESA in IR emission bands of Bi-doped germanosilicate and phosphosilicate fibers was found. Considerable ESA was observed in Bi-doped aluminosilicate fibers at 800-1700 nm. The ESA spectra of the aluminosilicate BDFs with different bismuth concentration were measured at room and 77 K temperature. Significant dependence of the ESA on the bismuth concentration and the fiber temperature was found.
authors: K E
authors: KE
authors: Riumkin
authors: M A
authors: MA
authors: Melkumov
authors: I A
authors: IA
authors: Varfolomeev
authors: A V
authors: AV
authors: Shubin
authors: I A
authors: IA
authors: Bufetov
authors: S V
authors: SV
authors: Firstov
authors: V F
authors: VF
authors: Khopin
authors: A A
authors: AA
authors: Umnikov
authors: A N
authors: AN
authors: Guryanov
authors: E M
authors: EM
authors: Dianov