Raman gain measurements of thallium-tellurium oxide glasses

Robert Stegeman (1) , Clara Rivero (1, 2) , Kathleen Richardson (1) , George Stegeman (1) , Peter Delfyett (1) , Yu Guo (3) , April Pope (3) , A. Schulte (3) , Thierry Cardinal (2) , Philippe Thomas (4) , Jean-Claude Champarnaud-Mesjard (4)

1 CREOL - The College of Optics and Photonics [Orlando]
2 ICMCB - Institut de Chimie de la Matière Condensée de Bordeaux
3 Department of Physics
4 Axe 3 : organisation structurale multiéchelle des matériaux

Several different compositions of tellurium-thallium oxide glasses were fabricated and tested for their Raman gain performance. The addition of PbO to the glass matrix increased the surface optical damage threshold by 60-230%. The maximum material Raman gain coefficient experimentally obtained was (58 +/- 3) times higher than the peak Raman gain of a 3.18 mm thick Corning 7980-2F fused silica sample (Deltanu = 13.2 THz). The highest peak in the Raman gain spectrum of the tellurium-thallium glass is attributed to the presence of TeO3 and TeO3+1 structural units with thallium ions in the vicinity at a frequency shift near 21.3 THz.

Keywords: Fiber optics; Optical communications; Oscillators; Amplifiers; Nonlinear optical materials; Raman effect; Nonlinear optics; Scattering

Domains: Material chemistry; Optics [physics.optics]

Robert Stegeman, Clara Rivero, Kathleen Richardson, George Stegeman, Peter Delfyett, et al.. Raman gain measurements of thallium-tellurium oxide glasses. Optics Express, 2005, 13 (4), pp.1144-1149. ⟨10.1364/OPEX.13.001144⟩. ⟨hal-00022230⟩