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Visible and Near Infra-red Up-conversion in Tm3+/Yb3+ Co-doped Silica Fibres Under 980 nm Excitation

Simpson, David Allan and Gibbs, Keith and Collins, Stephen F and Blanc, Wilfried and Dussardier, Bernard and Monnom, Gerard and Baxter, Gregory W (2008) Visible and Near Infra-red Up-conversion in Tm3+/Yb3+ Co-doped Silica Fibres Under 980 nm Excitation. Optics Express, 16 (18). pp. 13781-13799.

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Abstract

The spectroscopic properties of Tm3+/Yb3+ co-doped silica fibers under excitation at 980 nm are reported. Three distinct up-conversion fluorescence bands were observed in the visible to near infra-red regions. The blue and red fluorescence bands at 475 and 650 nm, respectively, were found to originate from the 1G4 level of Tm3+. A three step up-conversion process was established as the populating mechanism for these fluorescence bands. The fluorescence band at 800 nm was found to originate from two possible transitions in Tm3+; one being the transition from the 3H4 to 3H6 manifold which was found to dominate at low pump powers; the other being the transition from the 1G4 to 3H6 level which dominates at higher pump powers. The fluorescence lifetime of the 3H4 and 3F4 levels of Tm3+ and 2F5/2 level of Yb3+ were studied as a function of Yb3+ concentration, with no significant energy back transfer from Tm3+ to Yb3+ observed.

Item Type: Article
Uncontrolled Keywords: ResPubID: 15946, fiber optics, optical communications, Fiber optics amplifiers and oscillators, spectroscopy, fluorescence and luminescence
Subjects: FOR Classification > 0205 Optical Physics
SEO Classification > 970108 Expanding Knowledge in the Information and Computing Sciences
Faculty/School/Research Centre/Department > Centre for Telecommunications and Micro-Electronics (CTME)
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Depositing User: VUIR
Date Deposited: 19 Jan 2010 04:15
Last Modified: 09 Jun 2013 08:35
URI: http://vuir.vu.edu.au/id/eprint/2118
DOI: 10.1364/OE.16.013781
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Citations in Scopus: 16 - View on Scopus

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