title: Investigation of thermal stability and spectroscopic properties in Er3+/Yb3+ co-doped niobic tungsten tellurite glasses.
abstract: A series of novel Er3+/Yb3+ co-doped 75TeO2-(25-x)Nb2O5-xWO3 (TNW: x=0, 3, 6, 9, 12, and 15 mol%) glasses have been prepared. Effect of WO3 on the thermal stability and spectroscopic properties of Er3+/Yb3+ co-doped niobic tellurite glasses have been investigated. With WO3 content increasing from 0 to 15 mol%, the fluorescence full width at half maximum (FWHM), the peak of stimulated emission cross-section (sigmaepeak), the measured lifetime (taum), and quantum efficiency (eta) change from 71 nm, 8.47x10(-21) cm2, 2.86 ms, 84.1% to 76 nm, 7.22x10(-21) cm2, 3.14 ms, 88.9%, respectively. The FWHM and sigmaepeak of Er3+ ions in different glass hosts were compared; the obtained data reveals that this new TNW4 glass may be a potentially useful candidate material host for broadband amplifiers.
authors.affiliation: College of Mathematics, Physics and Information, Zhejiang Ocean University, Zhejiang 316000, PR China. wxm@zjou.net.cn
authors.forename: Xuming
authors.initials: X
authors.lastname: Wang
mesh_terms: D004871:Erbium / Q000737:chemistry*; D005898:Glass / Q000737:chemistry*; D006207:Half-Life; D009556:Niobium / Q000737:chemistry; D010087:Oxides / Q000737:chemistry; D013050:Spectrometry, Fluorescence / Q000379:methods*; D013691:Tellurium / Q000737:chemistry*; D013696:Temperature; D013816:Thermodynamics; D014414:Tungsten / Q000737:chemistry*; D015018:Ytterbium / Q000737:chemistry*
chemical_list: D010087:Oxides; D009556:Niobium; D004871:Erbium; D015018:Ytterbium; D013691:Tellurium; D014414:Tungsten