Abstract

Measurements are reported of the spectroscopic properties of phosphate glasses doped with 3-, 5-, and 10-wt. % Nd3+ in the temperature range 70–300 K. The stimulated-emission cross sections of these glasses were determined by use of the Füchtbauer–Ladenburg formula at each temperature. The absorption spectra at room temperature were used to calculate the  4F3/2 4I11/2 stimulated-emission cross section and the  4F3/2 radiative lifetime according to Judd–Ofelt theory. Good agreement was obtained between measured and calculated stimulated-emission cross sections at room temperature. As the temperature decreased, the emission cross section increased while the emission lifetime remained constant for all the samples. The temperature dependences of the stimulated-emission cross sections for the differently doped glasses are in good agreement with earlier predictions.

© 2004 Optical Society of America

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References

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  1. J. T. Hunt and D. R. Speck, “Present and future performance of the Nova laser system,” Opt. Eng. (Bellingham) 28, 461–468 (1989).
    [CrossRef]
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    [CrossRef]
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    [CrossRef]
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    [CrossRef]
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    [CrossRef]
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    [CrossRef]
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    [CrossRef]
  11. A. C. Erlandson, G. F. Albrecht, and S. E. Stokowski, “Model predicting the temperature dependence of the gain coefficient and the extractable stored energy density in Nd:phosphate glass lasers,” J. Opt. Soc. Am. B 9, 214–222 (1992).
    [CrossRef]

2000 (2)

J. Campbell, T. I. Suratwala, C. B. Thorsness, J. S. Hayden, A. J. Thorne, J. M. Cimino, A. J. Marker III, K. Takeuchi, M. Smolley, and G. F. Ficini-Dorn, “Continuous melting of phosphate laser glasses,” J. Non-Cryst. Solids 263/264, 342–357 (2000).
[CrossRef]

J. Campbell and T. Suratwala, “Nd-doped phosphate glasses for high-energy/high-peak-power lasers,” J. Non-Cryst. Solids 263/264, 318–341 (2000).
[CrossRef]

1997 (1)

1992 (1)

1989 (1)

J. T. Hunt and D. R. Speck, “Present and future performance of the Nova laser system,” Opt. Eng. (Bellingham) 28, 461–468 (1989).
[CrossRef]

1982 (1)

B. F. Aull and H. P. Jenssen, “Vibronic interactions in Nd:YAG resulting in nonrecriprocity of absorption and stimulated emission cross sections,” IEEE J. Quantum Electron. QE-18, 925–930 (1982).
[CrossRef]

1980 (1)

M. J. Weber, “Glass for neodymium fusion lasers,” J. Non-Cryst. Solids 43, 189–196 (1980).
[CrossRef]

1966 (1)

W. F. Krupke, “Optical absorption and fluorescence intensities in several rare-earth-doped Y2O3 and LaF3 single crystals,” Phys. Rev. 145, 325–337 (1966).
[CrossRef]

1962 (2)

B. R. Judd, “Optical absorption intensities of rare-earth ions,” Phys. Rev. 127, 750–761 (1962).
[CrossRef]

G. S. Ofelt, “Intensities of crystal spectra of rare-earth ions,” J. Chem. Phys. 37, 511–520 (1962).
[CrossRef]

Albrecht, G. F.

Aull, B. F.

B. F. Aull and H. P. Jenssen, “Vibronic interactions in Nd:YAG resulting in nonrecriprocity of absorption and stimulated emission cross sections,” IEEE J. Quantum Electron. QE-18, 925–930 (1982).
[CrossRef]

Barker, C. E.

Behrendt, W. C.

Browning, D. F.

Campbell, J.

J. Campbell, T. I. Suratwala, C. B. Thorsness, J. S. Hayden, A. J. Thorne, J. M. Cimino, A. J. Marker III, K. Takeuchi, M. Smolley, and G. F. Ficini-Dorn, “Continuous melting of phosphate laser glasses,” J. Non-Cryst. Solids 263/264, 342–357 (2000).
[CrossRef]

J. Campbell and T. Suratwala, “Nd-doped phosphate glasses for high-energy/high-peak-power lasers,” J. Non-Cryst. Solids 263/264, 318–341 (2000).
[CrossRef]

Campbell, J. H.

Cimino, J. M.

J. Campbell, T. I. Suratwala, C. B. Thorsness, J. S. Hayden, A. J. Thorne, J. M. Cimino, A. J. Marker III, K. Takeuchi, M. Smolley, and G. F. Ficini-Dorn, “Continuous melting of phosphate laser glasses,” J. Non-Cryst. Solids 263/264, 342–357 (2000).
[CrossRef]

Erlandson, A. C.

Ficini-Dorn, G. F.

J. Campbell, T. I. Suratwala, C. B. Thorsness, J. S. Hayden, A. J. Thorne, J. M. Cimino, A. J. Marker III, K. Takeuchi, M. Smolley, and G. F. Ficini-Dorn, “Continuous melting of phosphate laser glasses,” J. Non-Cryst. Solids 263/264, 342–357 (2000).
[CrossRef]

Hayden, J. S.

J. Campbell, T. I. Suratwala, C. B. Thorsness, J. S. Hayden, A. J. Thorne, J. M. Cimino, A. J. Marker III, K. Takeuchi, M. Smolley, and G. F. Ficini-Dorn, “Continuous melting of phosphate laser glasses,” J. Non-Cryst. Solids 263/264, 342–357 (2000).
[CrossRef]

Hunt, J. T.

J. T. Hunt and D. R. Speck, “Present and future performance of the Nova laser system,” Opt. Eng. (Bellingham) 28, 461–468 (1989).
[CrossRef]

Jenssen, H. P.

B. F. Aull and H. P. Jenssen, “Vibronic interactions in Nd:YAG resulting in nonrecriprocity of absorption and stimulated emission cross sections,” IEEE J. Quantum Electron. QE-18, 925–930 (1982).
[CrossRef]

Judd, B. R.

B. R. Judd, “Optical absorption intensities of rare-earth ions,” Phys. Rev. 127, 750–761 (1962).
[CrossRef]

Krupke, W. F.

W. F. Krupke, “Optical absorption and fluorescence intensities in several rare-earth-doped Y2O3 and LaF3 single crystals,” Phys. Rev. 145, 325–337 (1966).
[CrossRef]

Marker III, A. J.

J. Campbell, T. I. Suratwala, C. B. Thorsness, J. S. Hayden, A. J. Thorne, J. M. Cimino, A. J. Marker III, K. Takeuchi, M. Smolley, and G. F. Ficini-Dorn, “Continuous melting of phosphate laser glasses,” J. Non-Cryst. Solids 263/264, 342–357 (2000).
[CrossRef]

Murray, J. R.

Ofelt, G. S.

G. S. Ofelt, “Intensities of crystal spectra of rare-earth ions,” J. Chem. Phys. 37, 511–520 (1962).
[CrossRef]

Smith, I. C.

Smolley, M.

J. Campbell, T. I. Suratwala, C. B. Thorsness, J. S. Hayden, A. J. Thorne, J. M. Cimino, A. J. Marker III, K. Takeuchi, M. Smolley, and G. F. Ficini-Dorn, “Continuous melting of phosphate laser glasses,” J. Non-Cryst. Solids 263/264, 342–357 (2000).
[CrossRef]

Speck, D. R.

Stokowski, S. E.

Suratwala, T.

J. Campbell and T. Suratwala, “Nd-doped phosphate glasses for high-energy/high-peak-power lasers,” J. Non-Cryst. Solids 263/264, 318–341 (2000).
[CrossRef]

Suratwala, T. I.

J. Campbell, T. I. Suratwala, C. B. Thorsness, J. S. Hayden, A. J. Thorne, J. M. Cimino, A. J. Marker III, K. Takeuchi, M. Smolley, and G. F. Ficini-Dorn, “Continuous melting of phosphate laser glasses,” J. Non-Cryst. Solids 263/264, 342–357 (2000).
[CrossRef]

Takeuchi, K.

J. Campbell, T. I. Suratwala, C. B. Thorsness, J. S. Hayden, A. J. Thorne, J. M. Cimino, A. J. Marker III, K. Takeuchi, M. Smolley, and G. F. Ficini-Dorn, “Continuous melting of phosphate laser glasses,” J. Non-Cryst. Solids 263/264, 342–357 (2000).
[CrossRef]

Thorne, A. J.

J. Campbell, T. I. Suratwala, C. B. Thorsness, J. S. Hayden, A. J. Thorne, J. M. Cimino, A. J. Marker III, K. Takeuchi, M. Smolley, and G. F. Ficini-Dorn, “Continuous melting of phosphate laser glasses,” J. Non-Cryst. Solids 263/264, 342–357 (2000).
[CrossRef]

Thorsness, C. B.

J. Campbell, T. I. Suratwala, C. B. Thorsness, J. S. Hayden, A. J. Thorne, J. M. Cimino, A. J. Marker III, K. Takeuchi, M. Smolley, and G. F. Ficini-Dorn, “Continuous melting of phosphate laser glasses,” J. Non-Cryst. Solids 263/264, 342–357 (2000).
[CrossRef]

Van Wonterghem, B. M.

Weber, M. J.

M. J. Weber, “Glass for neodymium fusion lasers,” J. Non-Cryst. Solids 43, 189–196 (1980).
[CrossRef]

Appl. Opt. (1)

IEEE J. Quantum Electron. (1)

B. F. Aull and H. P. Jenssen, “Vibronic interactions in Nd:YAG resulting in nonrecriprocity of absorption and stimulated emission cross sections,” IEEE J. Quantum Electron. QE-18, 925–930 (1982).
[CrossRef]

J. Chem. Phys. (1)

G. S. Ofelt, “Intensities of crystal spectra of rare-earth ions,” J. Chem. Phys. 37, 511–520 (1962).
[CrossRef]

J. Non-Cryst. Solids (3)

M. J. Weber, “Glass for neodymium fusion lasers,” J. Non-Cryst. Solids 43, 189–196 (1980).
[CrossRef]

J. Campbell, T. I. Suratwala, C. B. Thorsness, J. S. Hayden, A. J. Thorne, J. M. Cimino, A. J. Marker III, K. Takeuchi, M. Smolley, and G. F. Ficini-Dorn, “Continuous melting of phosphate laser glasses,” J. Non-Cryst. Solids 263/264, 342–357 (2000).
[CrossRef]

J. Campbell and T. Suratwala, “Nd-doped phosphate glasses for high-energy/high-peak-power lasers,” J. Non-Cryst. Solids 263/264, 318–341 (2000).
[CrossRef]

J. Opt. Soc. Am. B (1)

Opt. Eng. (Bellingham) (1)

J. T. Hunt and D. R. Speck, “Present and future performance of the Nova laser system,” Opt. Eng. (Bellingham) 28, 461–468 (1989).
[CrossRef]

Phys. Rev. (2)

W. F. Krupke, “Optical absorption and fluorescence intensities in several rare-earth-doped Y2O3 and LaF3 single crystals,” Phys. Rev. 145, 325–337 (1966).
[CrossRef]

B. R. Judd, “Optical absorption intensities of rare-earth ions,” Phys. Rev. 127, 750–761 (1962).
[CrossRef]

Other (1)

W. Koechner, Solid-State Laser Engineering, 4th ed. (Springer-Verlag, Berlin, 1996), pp. 28–80.

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Figures (5)

Fig. 1
Fig. 1

Absorption spectra of Nd3+-doped phosphate glasses at room temperature.

Fig. 2
Fig. 2

Emission signal detected at 1.053 µm after excitation by a 5-ns pulse at 804 nm at room temperature for three concentrations of Nd3+ phosphate glasses. The experimental data are represented by the thin jagged curves. Exponential decays with lifetimes of 300, 280, and 160 µs for three samples are also plotted (thick dashed curves).

Fig. 3
Fig. 3

Variation of the fluorescence lifetime of Nd:phosphate glasses with temperature.

Fig. 4
Fig. 4

Stimulated-emission cross section of 3% Nd3+ in phosphate glass as a function of wavelength at room temperature (293 K) and near liquid-nitrogen temperature (70 K).

Fig. 5
Fig. 5

Logarithm of the stimulated-emission cross section versus temperature for differently doped glasses. The data are indicated, and the straight line is the model of Erlandson et al. from Ref. 11.

Tables (4)

Tables Icon

Table 1 Measured Line Strengths of Nd:Phosphate Glasses with Different Nd3+ Concentrations

Tables Icon

Table 2 Room-Temperature Emission Properties of Nd3+ in Phosphate with Various Nd3+ Concentrations

Tables Icon

Table 3 Calculated Judd–Ofelt Parameters for the Nd:Phosphate Glasses in Table 2

Tables Icon

Table 4 Calculated Branching Ratios of the Fluorescence Transitions to the Lower-Lying Manifold of Nd3+ Ion in the Phosphate Glasses in Table 2

Equations (3)

Equations on this page are rendered with MathJax. Learn more.

τexp-1=τR-1+WNdNd
σem(λ)=18πλ5n2cτI(λ)I(λ)λdλ,
σ32(T)=σ32(T0)exp[b(T0-T)],

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