Lifetime quenching in Yb doped fibres
Paschotta, R., Nilsson, J., Barber, P.R., Caplen, J.E., Tropper, A.C. and Hanna, D.C. (1997) Lifetime quenching in Yb doped fibres. Optics Communications, 136, (5-6), 375-378. (doi:10.1016/S0030-4018(96)00720-1).
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We have discovered that in ytterbium-doped silica fibres the excited state lifetime of a fraction of the Yb ions can be quenched to a very small value, leading to a strong unbleachable loss. This unexpected behaviour seems to be caused by some, yet unidentified, impurity or structural defect. It is of considerable relevance for various Yb doped lasers and-amplifiers including Er:Yb codoped fibres as used in telecommunication amplifiers although it should also be emphasized that fibres can be produced that are free from the quenching effect.
|Subjects:||T Technology > TK Electrical engineering. Electronics Nuclear engineering
Q Science > QC Physics
|Divisions:||University Structure - Pre August 2011 > Optoelectronics Research Centre
University Structure - Pre August 2011 > School of Physics and Astronomy
|Date Deposited:||11 Mar 2010|
|Last Modified:||27 Mar 2014 18:58|
|RDF:||RDF+N-Triples, RDF+N3, RDF+XML, Browse.|
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