Role of oxygen hole centres in the photodarkening of ytterbium-doped phosphosilicate fibre

Journal Article · Sat Nov 30 00:00:00 EST 2013 · Quantum Electronics (Woodbury, N.Y.)

DOI:https://doi.org/10.1070/QE2013V043N11ABEH015216· OSTI ID:22373682

Rybaltovsky, A A; Bobkov, K K; Likhachev, M E; Bubnov, M M; Dianov, E M ^[1]; Umnikov, A A; Lipatov, D S; Gur'yanov, A N ^[2]; Romanov, A N; Sulimov, V B ^[3]

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1. Fiber Optics Research Center, Russian Academy of Sciences, Moscow (Russian Federation)
2. G.G.Devyatykh Institute of Chemistry of High-Purity Substances, Russian Academy of Sciences, Nizhnii Novgorod (Russian Federation)
3. Research Computing Center M.V. Lomonosov Moscow State University, Russia, Moscow (Russian Federation)

We have studied the photodarkening in active fibres with an ytterbium-doped phosphosilicate glass core under IR irradiation with a pump source (920 nm) and UV irradiation (193 nm). Analysis of absorption and luminescence spectra suggests that such irradiations produce phosphorus – oxygen – hole centres (P-OHCs) in the core glass network and lead to the reduction of the ytterbium ions to a divalent state (Yb{sup 2+}). The photoinduced optical loss in the fibres in the visible range (400 – 700 nm) is mainly due to absorption by the P-OHCs. A quantum-mechanical model is proposed for P-OHC and Yb{sup 2+} formation. (nonlinear optical phenomena)

• OSTI ID: 22373682
• Journal Information: Quantum Electronics (Woodbury, N.Y.), Vol. 43, Issue 11; Other Information: Country of input: International Atomic Energy Agency (IAEA); ISSN 1063-7818
• Country of Publication: United States
• Language: English

Related Subjects

75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
DOPED MATERIALS
FIBERS
HOLES
LUMINESCENCE
NONLINEAR PROBLEMS
OXYGEN
PHOSPHORUS
QUANTUM MECHANICS
SILICATES
YTTERBIUM
YTTERBIUM IONS