Time resolve spectroscopy and energy transfer in Tm3+-Ho3+ and Tm3+-Tb3+ doped tellurite glasses

Shaoxiong Shen; Billy D. O. Richards; Animesh Jha

doi:10.1117/12.644715

28 February 2006 Time resolve spectroscopy and energy transfer in Tm³⁺-Ho³⁺ and Tm³⁺-Tb³⁺ doped tellurite glasses

Shaoxiong Shen, Billy D. O. Richards, Animesh Jha

Proceedings Volume 6116, Optical Components and Materials III; 61160C (2006) https://doi.org/10.1117/12.644715
Event: Integrated Optoelectronic Devices 2006, 2006, San Jose, California, United States

Abstract

The radiative transition in Tm³⁺-doped fibre at 1.47 μm (³H₄ → ³F₄) remains a potential route for designing efficient fibre and waveguide amplifiers for the S-band (1420-1520 nm). The transition however suffers from a long metastable lifetime (5 times longer) than the ³H₄ level, which means that the ³F₄ level must be depopulated rapidly for efficient inversion for laser and amplifiers applications. One of the known means so far for depopulation of the lower ³F₄ level is via co-doping with other rare-earth ions, essential for modest gain. For the Tm³⁺ - Ho³⁺ and Tm³⁺ - Tb³⁺ doped tellurite glasses, the IR static and time-resolve fluorescence spectra and the lifetimes of the upper ³H₄ and lower ³F₄ lasing levels for 1.47 μm of Tm³⁺ were measured. The energy transfer rate and non-radiative transfer efficiency between donors and acceptors are compared. The quenching mechanism has been explained. Both the Ho³⁺and Tb³⁺ ions reduce the lifetimes of the upper and lower lasing levels, with Tb³⁺ ions proving more effective than the effects observed for Ho³⁺ ions.

Citation Download Citation

Shaoxiong Shen, Billy D. O. Richards, and Animesh Jha "Time resolve spectroscopy and energy transfer in Tm³⁺-Ho³⁺ and Tm³⁺-Tb³⁺ doped tellurite glasses", Proc. SPIE 6116, Optical Components and Materials III, 61160C (28 February 2006); https://doi.org/10.1117/12.644715

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