Influence of BaF2 and activator concentration on broadband near-infrared luminescence of Pr3+ ions in gallo-germanate glasses.

Thermal stability and broadband NIR luminescence of Pr(3+) doped gallo-germanate glasses with BaF2 have been studied. The thermal factors are larger for glass samples with low BaF2 content exhibiting good thermal stability against devitrification. Luminescence due to (1)D2 → (1)G4 transition of Pr(3+) was measured under 450 nm excitation. The (1)D2 measured lifetimes depend critically on activator concentration, but remain nearly unchanged with BaF2 content. The emission linewidth, the emission cross-section, the figure of merit (FOM) and the σem x FWHM product are relatively large, suggesting that Pr(3+)-doped gallo-germanate glasses with presence of BaF2 are promising as gain media for broadband near-infrared amplifiers.

[1]  Zhongmin Yang,et al.  Ultrabroad NIR luminescence and energy transfer in Bi and Er/Bi co-doped germanate glasses. , 2011, Optics express.

[2]  C. K. Jayasankar,et al.  Optical properties of Er^3+-doped K-Ca-Al fluorophosphate glasses for optical amplification at 153 μm , 2015 .

[3]  G. Dong,et al.  Enhanced broadband near-infrared emission and energy transfer in Bi-Tm-codoped germanate glasses for broadband optical amplification. , 2009, Optics letters.

[4]  W. Jin,et al.  Superbroadband near-IR photoluminescence from Pr3+-doped fluorotellurite glasses. , 2012, Optics express.

[5]  Lifan Shen,et al.  Praseodymium ion doped phosphate glasses for integrated broadband ion-exchanged waveguide amplifier , 2015 .

[6]  Xiujian Zhao,et al.  Er3+ Ions‐Doped Germano‐Gallate Oxyfluoride Glass‐Ceramics Containing BaF2 Nanocrystals , 2015 .

[7]  Junjie Zhang,et al.  Mid-infrared fluorescence, energy transfer process and rate equation analysis in Er3+ doped germanate glass , 2014, Scientific Reports.

[8]  Danping Chen,et al.  Near-infrared emission from Pr-doped borophosphate glass for broadband telecommunication , 2013 .

[9]  Mingmei Wu,et al.  UV-Vis-NIR luminescence properties and energy transfer mechanism of LiSrPO4:Eu2+, Pr3+ suitable for solar spectral convertor. , 2013, Optics express.

[10]  Shangda Xia,et al.  Luminescence concentration quenching of 1D2 state in YPO4:Pr3+ , 2001 .

[11]  E. Pun,et al.  Pr3+-doped phosphate glasses for fiber amplifiers operating at 1.38–1.53 μm of the fifth optical telecommunication window , 2014 .

[12]  Bin Chen,et al.  Quantitative characterization on multichannel transition emissions originating from 3P0 and 1D2 levels of Pr3+ in fluorotellurite glasses , 2013 .

[13]  Junjie Zhang,et al.  Highly efficient mid-infrared 2 μm emission in Ho 3+ /Yb 3+ -codoped germanate glass , 2015 .

[14]  M. Kochanowicz,et al.  NIR to visible upconversion in double – clad optical fiber co-doped with Yb 3+ /Ho 3+ , 2013, CLEO 2013.

[15]  Yan Wang,et al.  Evaluation of spectroscopic properties of Er3+/Yb3+/Pr3+: SrGdGa3O7 crystal for use in mid-infrared lasers , 2015, Scientific Reports.

[16]  M. Ferrari,et al.  Downconversion in Pr3+–Yb3+ co-doped ZBLA fluoride glasses , 2015 .

[17]  E. Pun,et al.  Superbroadband near-IR emission from praseodymium-doped bismuth gallate glasses. , 2011, Optics letters.

[18]  Qianhuan Zhang,et al.  Enhanced broadband 1.8 μm emission in Bi/Tm 3+ co-doped fluorogermanate glasses , 2015 .

[19]  B. Park,et al.  1.6 μm emission from Pr3+: (3F3,3F4)→3H4 transition in Pr3+- and Pr3+/Er3+-doped selenide glasses , 2001 .

[20]  L. Barbosa,et al.  Near-IR emission in Pr3+single doped and tunable near-IR emission in Pr3+/Yb3+ codoped tellurite tungstate glasses for broadband optical amplifiers , 2014 .

[21]  Maurizio Ferrari,et al.  Optical spectroscopy of zinc borate glass activated by Pr3+ ions , 1998 .

[22]  Zhongmin Yang,et al.  Tm³⁺ doped barium gallo-germanate glass single-mode fibers for 2.0 μm laser. , 2015, Optics express.

[23]  Rolindes Balda,et al.  Spectroscopy and orange-blue frequency upconversion in Pr3+-doped GeO2-PbO-Nb2O5 glass , 2000 .

[24]  B. Zhai,et al.  Pr3+-doped heavy metal germanium tellurite glasses for irradiative light source in minimally invasive photodynamic therapy surgery. , 2013, Optics express.

[25]  E. Pun,et al.  Superbroadband near-infrared emission in Tm-Bi codoped sodium-germanium-gallate glasses. , 2011, Optics express.

[26]  Markus Pollnau,et al.  Erbium‐doped integrated waveguide amplifiers and lasers , 2011 .

[27]  H. Seo,et al.  Spectroscopic properties of Pr3+ ions in a PbWO4 single crystal. , 2008, The journal of physical chemistry. A.

[28]  Dominik Dorosz,et al.  Rare earths in lead-free oxyfluoride germanate glasses. , 2015, Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy.

[29]  Dominik Dorosz,et al.  Towards lead-free oxyfluoride germanate glasses singly doped with Er3+ for long-lived near-infrared luminescence , 2014 .

[30]  Yinsheng Xu,et al.  Enhanced Thermostability, Thermo‐Optics, and Thermomechanical Properties of Barium Gallo‐Germanium Oxyfluoride Glasses and Glass‐Ceramics , 2013 .

[31]  Yong Gyu Choi,et al.  Spectroscopic properties of Pr3+: 1D2 → 1G4 transition in SiO2-based glasses , 2005 .

[32]  E. Snitzer,et al.  Pr(3+)-doped fluoride fiber amplifier operating at 1.31 microm. , 1991, Optics letters.

[33]  M. Kochanowicz,et al.  Up-conversion luminescence of Tb 3+ ions in germanate glasses under diode-laser excitation of Yb 3+ , 2014 .

[34]  E. Pun,et al.  Ultra-broadband near-infrared emission in praseodymium ion doped germanium tellurite glasses for optical fiber amplifier operating at E-, S-, C-, and L-band , 2012 .

[35]  D. Dorosz,et al.  Spectral analysis of Pr3+ doped germanate glasses modified by BaO and BaF2 , 2016 .

[36]  L. J. Button,et al.  Pr-doped mixed-halide glasses for 1300 nm amplification , 1994, IEEE Photonics Technology Letters.

[37]  Q. Su,et al.  Near ultraviolet and visible-to-near-infrared spectral converting properties and energy transfer mechanism of Sr_2SiO_4:Ce^3+, Pr^3+ phosphor , 2014 .