1997•Electronics LettersRequires access

Avalanche assisted upconversion in Pr 3+ /Yb 3+ -dopedZBLAN glass

Timothy R. Gosnell

Abstract

The author reports efficient upconversion optical pumping of the 3P levels of Pr3+ in ZBLAN glass codoped with Yb3+. Measurements of Pr3+ visible emission against infrared pump intensity demonstrate the existence of an avalanche pumping process which comprises three components: radiationless energy transfer from Yb3+ to Pr3+, excited-state absorption in Pr3+, and cross-relaxation between excited Pr3+ ions and ground-state Yb3+ ions.

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Available abstract

Key concepts: ZBLAN, Photon upconversion, Excited state, Materials science, Ion, Doping, Energy transfer, Optoelectronics