Er3+ concentration study in green up-conversion of ZBLAN: Er3+ glasses pumped with LD 970 nm laser

Wanghe Cao; Shidong Kan; Chuanyi Zang

doi:10.1117/12.318333

5 August 1998 Er³⁺concentration study in green up-conversion of ZBLAN: Er³⁺glasses pumped with LD 970 nm laser

Wanghe Cao, Shidong Kan, Chuanyi Zang

Proceedings Volume 3557, Current Developments in Optical Elements and Manufacturing; (1998) https://doi.org/10.1117/12.318333
Event: Photonics China '98, 1998, Beijing, China

Abstract

Five samples of ZBLAN:Er³⁺ (Er³⁺ concentration: 500 ppm, 5000 ppm, 1 mol%, 1.5 mol%, 3 mol%) were fabricated and their optical and thermal parameters were analyzed. The up-conversion processes of the green, red and blue emission bands were investigated under 970 nm pump. The green at 525 - 545 nm and red at 654 - 665 nm radiation transitions are due to two photons absorption; and the blue generation is maybe responsible for the single excited state absorption at 545 nm from the ⁴I_13/2 level. In our experiment, the 1.5 mol Er³⁺% in ZBLAN:Er glass sample is the optimum doping-concentration that generates green emission under 970 nm LD pump, because its luminescence intensity almost is quasi-linear with working current in 10 mA range from 230 to 240 mA in comparison with other samples.

Citation Download Citation

Wanghe Cao, Shidong Kan, and Chuanyi Zang "Er³⁺concentration study in green up-conversion of ZBLAN: Er³⁺glasses pumped with LD 970 nm laser", Proc. SPIE 3557, Current Developments in Optical Elements and Manufacturing, (5 August 1998); https://doi.org/10.1117/12.318333

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