Enhanced 1.8 µm emission in Cr3+/Tm3+ co-doped fluorogermanate glasses for a multi-wavelength pumped near-infrared lasers | Zendy

W. C. Wang | Zendy; Jian Yuan | Zendy; D. D. Chen | Zendy; Jiaxin Zhang | Zendy; Shiqing Xu | Zendy; Qinyuan Zhang | Zendy

Open Access

Enhanced 1.8 µm emission in Cr3+/Tm3+ co-doped fluorogermanate glasses for a multi-wavelength pumped near-infrared lasers

Author(s) -

W. C. Wang,

Jian Yuan,

D. D. Chen,

Jiaxin Zhang,

Shiqing Xu,

Qinyuan Zhang

Publication year - 2014

Publication title -

aip advances

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.421

H-Index - 58

ISSN - 2158-3226

DOI - 10.1063/1.4900860

Subject(s) - laser , materials science , doping , infrared , optoelectronics , fiber laser , diode , wavelength , xenon , near infrared spectroscopy , excitation , optical amplifier , energy transfer , optics , chemistry , physics , electrical engineering , organic chemistry , engineering , molecular physics

Cr3+/Tm3+ co-doped fluorogermanate glasses were prepared by melt-quenching technique, and their luminescent properties were investigated under excitation of Xenon lamp and 808 nm laser diode, respectively. Through strong sensitization of Cr3+, an enhanced 1.8 µm emission band of Tm3+: 3F4→3H6 can be achieved in an extremely extended excitation band of 380-900 nm. The possible energy transfer mechanism between Cr3+ and Tm3+ is rationally discussed. On the basis of experimental data, the highest energy transfer efficiency is up to 91.70%. Our results suggest this efficient Cr3+/Tm3+ co-doping system provides a selective pump mechanism for obtaining 1.8 µm laser and thus shows attractive applications in near-infrared fiber lasers and amplifiers

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