Abstract

The optical properties of a new family of neodymium doped BPG (Bi2O3-PbO-Ga2O3) glasses are presented. We measured a high refractive index, of 2.5, and a transmission cutoff in the far infrared at 8µm. Three emission bands are observed centered at 877nm, 1066nm and 1341nm. The emission cross-section is 10-20cm2 and the total spectral linewidth is 30nm at 1066nm. The Judd-Ofelt parameters are calculated and used to evaluate transition probability, radiative lifetime and branching ratios. The optical properties of these Nd:BPG glasses show promise for their use as a new active laser material.

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References

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  1. W. Koechner, Solid State Laser Engineering (Springer-Verlag, Berlin, 1996), Chap. 2 and Chap. 3.
  2. R. Scheps, "Efficient Laser Diode Pumped Nd Lasers," Appl. Opt., 1, 89-91 (1989).
    [CrossRef]
  3. N. P. Barnes, M. E. Storm, P. L. Cross, and M. W. Skolaut, "Efficiency of Nd Laser Materials with laser Diode Pumping," J. Quantum Electron., 26, 558-569 (1990).
    [CrossRef]
  4. J. Nees et al.,"Ensuring Compactness, Reliability, and Scalability for the Next Generation of High-Field Lasers," J. Quantum Electron., 4, 376-384(1998).
  5. W. R. Dumbaugh, "Lead Bismuthate Glasses," Physics and Chemistry of Glasses, 19, 121-125 (1978).
  6. W. R. Dumbaugh, "Heavy Metal Oxides Glasses Containing Bi2O3 ," Physics and Chemistry of Glasses, 27, 119-123 (1986).
  7. J. G. Clemente, L. R. P. Kassab, S. H. Tatumi, "Study of Glasses Containing Heavy Metal and Gallium Oxides," in Proceedings of the 4 th Brazilian Symposium on Glasses and Related Materials (Ouro Preto, MG, Brazil, 1999), pp. 27.
  8. F. Donald Bloss, An Introduction to the Methods of Optical Crystallography (Holt, Rinehart and Winston, Inc, USA, 1961).
  9. B. R. Judd, "Optical Absorption Intensities of Rare-Earth Ions," Phys. Rev., 127, 750 (1962).
    [CrossRef]
  10. G. S. Ofelt, "Intensities of Crystal Spectra of Rare-Earth Ions," J. Chem. Phys, 37, 511 (1962).
    [CrossRef]
  11. C. Y. Chen, W. A. Sibley, D. C. Yeh and C. A. Hunt, "The optical properties of Er 3+ and Tm 3+ in KCaF3 Crystal," J. of Luminesc., 43, 185-194 (1989).
    [CrossRef]
  12. C. Li, Y. Guyot, C. Linares, R. Moncorg�, M. F. Joubert, "Radiative Transition Probabilities of Trivalent Rare-Earth Ions in LiYF4 ," in Proceedings on Advanced Solid-State Lasers, Albert A. Pinto, Tso Yee Fan, Vol. V of OSA Proceedings Series (Optical Society of America, New Orleans, LA., 1993), pp. 91-95.
  13. Y. Guyot, H. Manaa, J. Y. Rivoire, R. Moncorg�, N. Garnier, E. Descroix, M. Bom, P. Laporte, "Excited-State- Absorption and Upconversion Studies of Nd 3+ doped single crystals Y3Al5O12, YLiF4 and LaMgAl11O19", Phys. Rev. B, 51, 784-799 (1995).
    [CrossRef]
  14. R. R. Petrin, M. L. Kliewer, J. T. Beasley, R. C. Powell, I. D. Aggarwal, R. C. Ginther, "Spectroscopy and Laser Operation of Nd:ZBAN Glass," J. Quantum Electron., 27, 1031-1038 (1991).
    [CrossRef]
  15. W. T. Carnall, H. Crosswhite, H. M. Crosswhite , private communication (1977).
  16. Y. Guyot, R. Moncorg�, L. D. Merkle, A. Pinto, B. MacIntosy, H. Verdun, "Luminescence properties of Y2 O3 single crystals doped with Pr 3+ or Tm 3+ and codoped with Yb 3+ , Tb 3+ or Ho 3+ ions," Optical Materials, 5, 127-136 (1996).
    [CrossRef]
  17. M. J. Weber, "Science and Technology of Laser Glass," J. Non-Cryst. Solids, 123, 208-222 (1990).
    [CrossRef]

Other

W. Koechner, Solid State Laser Engineering (Springer-Verlag, Berlin, 1996), Chap. 2 and Chap. 3.

R. Scheps, "Efficient Laser Diode Pumped Nd Lasers," Appl. Opt., 1, 89-91 (1989).
[CrossRef]

N. P. Barnes, M. E. Storm, P. L. Cross, and M. W. Skolaut, "Efficiency of Nd Laser Materials with laser Diode Pumping," J. Quantum Electron., 26, 558-569 (1990).
[CrossRef]

J. Nees et al.,"Ensuring Compactness, Reliability, and Scalability for the Next Generation of High-Field Lasers," J. Quantum Electron., 4, 376-384(1998).

W. R. Dumbaugh, "Lead Bismuthate Glasses," Physics and Chemistry of Glasses, 19, 121-125 (1978).

W. R. Dumbaugh, "Heavy Metal Oxides Glasses Containing Bi2O3 ," Physics and Chemistry of Glasses, 27, 119-123 (1986).

J. G. Clemente, L. R. P. Kassab, S. H. Tatumi, "Study of Glasses Containing Heavy Metal and Gallium Oxides," in Proceedings of the 4 th Brazilian Symposium on Glasses and Related Materials (Ouro Preto, MG, Brazil, 1999), pp. 27.

F. Donald Bloss, An Introduction to the Methods of Optical Crystallography (Holt, Rinehart and Winston, Inc, USA, 1961).

B. R. Judd, "Optical Absorption Intensities of Rare-Earth Ions," Phys. Rev., 127, 750 (1962).
[CrossRef]

G. S. Ofelt, "Intensities of Crystal Spectra of Rare-Earth Ions," J. Chem. Phys, 37, 511 (1962).
[CrossRef]

C. Y. Chen, W. A. Sibley, D. C. Yeh and C. A. Hunt, "The optical properties of Er 3+ and Tm 3+ in KCaF3 Crystal," J. of Luminesc., 43, 185-194 (1989).
[CrossRef]

C. Li, Y. Guyot, C. Linares, R. Moncorg�, M. F. Joubert, "Radiative Transition Probabilities of Trivalent Rare-Earth Ions in LiYF4 ," in Proceedings on Advanced Solid-State Lasers, Albert A. Pinto, Tso Yee Fan, Vol. V of OSA Proceedings Series (Optical Society of America, New Orleans, LA., 1993), pp. 91-95.

Y. Guyot, H. Manaa, J. Y. Rivoire, R. Moncorg�, N. Garnier, E. Descroix, M. Bom, P. Laporte, "Excited-State- Absorption and Upconversion Studies of Nd 3+ doped single crystals Y3Al5O12, YLiF4 and LaMgAl11O19", Phys. Rev. B, 51, 784-799 (1995).
[CrossRef]

R. R. Petrin, M. L. Kliewer, J. T. Beasley, R. C. Powell, I. D. Aggarwal, R. C. Ginther, "Spectroscopy and Laser Operation of Nd:ZBAN Glass," J. Quantum Electron., 27, 1031-1038 (1991).
[CrossRef]

W. T. Carnall, H. Crosswhite, H. M. Crosswhite , private communication (1977).

Y. Guyot, R. Moncorg�, L. D. Merkle, A. Pinto, B. MacIntosy, H. Verdun, "Luminescence properties of Y2 O3 single crystals doped with Pr 3+ or Tm 3+ and codoped with Yb 3+ , Tb 3+ or Ho 3+ ions," Optical Materials, 5, 127-136 (1996).
[CrossRef]

M. J. Weber, "Science and Technology of Laser Glass," J. Non-Cryst. Solids, 123, 208-222 (1990).
[CrossRef]

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Figures (4)

Fig. 1.
Fig. 1.

Transmission in the infrared region for the BPG glass doped with neodymium (2.5mm thickness).

Fig. 2.
Fig. 2.

Absorption spectra of Nd:BPG glass (2.5mm thickness).

Fig. 3.
Fig. 3.

Room temperature fluorescence spectrum of Nd:BPG glass under diode laser excitation at 797nm.

Fig. 4.
Fig. 4.

Emission cross section of Nd:BPG glass for 1066nm.

Tables (1)

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Table 1. Transition probability and branching ratios of Nd:BPG glasses

Equations (3)

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A ( J J ' ) = 64 π 4 e 2 3 h ( 2 J + 1 ) λ 3 n ( n 2 + 2 ) 2 9 t = 2 , 4 , 6 Ω t SLJ U ( t ) S " L ' J ' 2
τ R = J [ A ( J , J ' ) ] 1
σ ( λ ) = λ 2 β R 8 π n 2 c τ R I ( λ ) λ i ( λ ) d λ

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