Chinese Optics Letters, 2017, 15 (5): 051604, Published Online: Jul. 23, 2018
Influence of Tm3+ ions on the amplification of Ho3+:5I7→5I8 transition in fluoride glass modified by Al(PO3)3 for applications in mid-infrared optics
160.4670 Optical materials 160.5690 Rare-earth-doped materials 060.2390 Fiber optics, infrared 070.4790 Spectrum analysis
Abstract
In this work, we investigate a new type of fluoride glasses modified by Al ( PO 3 ) 3 with various Tm 3 + / Ho 3 + doping concentrations. The introduced PO 3 plays an effective role in improving the glass-forming ability and thermal stability. Besides, 1.47, 1.8, and 2.0 μm emissions originating from Tm 3 + and Ho 3 + , respectively, are observed. The spectroscopic properties and energy transfer mechanisms between Tm 3 + and Ho 3 + are analyzed as well. It is noted that the higher predicted spontaneous transition probability (118.74 s 1 ) along with the larger product of measured decay lifetime and the emission cross section (σ emi × τ ) give evidence of intense 2.0 μm fluorescence.
Fangwei Qi, Feifei Huang, Tao Wang, Ruoshan Lei, Junjie Zhang, Shiqing Xu, Long Zhang. Influence of Tm3+ ions on the amplification of Ho3+:5I7→5I8 transition in fluoride glass modified by Al(PO3)3 for applications in mid-infrared optics[J]. Chinese Optics Letters, 2017, 15(5): 051604.