Abstract

The spectral properties of Pr3+ doped BaInGaGeSe chalcogenide glasses are reported. Absorption spectra, emission spectra, and lifetimes of the lower lying manifolds have been measured. Radiative transition rates are calculated and compared with measured experimental lifetimes. The strong mid-IR emission and spectral properties of this glass make this glass a strong candidate for lasers, amplifiers, and high brightness sources in the mid-IR.

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References

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  1. Shaw, S.R. Bowman, B.J. Feldman, and J. Ganem, Radiative and multiphonon relaxation of the mid-IR transitions of Pr 3+ in LaCl3, IEEE J. Quantum Electron., 32, 2166-2172 (1996).
    [CrossRef]
  2. J. Ganem, S.R. Bowman, and B.J. Feldman, Excited state dynamics of Pr 3+ :LaCl3, J. Lumin., 58, 298-302, (1994).
    [CrossRef]
  3. S.R. Bowman, L.B. Shaw, B.J. Feldman, and J. Ganem , A 7-mm praseodymium solid-state laser, IEEE J. Quantum Electron., 32, 646-649 (1994).
    [CrossRef]
  4. S.R. Bowman, J. Ganem, B.J. Feldman, and A.W. Kueny, Infrared laser characteristics of praseodymium-doped lanthanum trichloride, IEEE J. Quantum Electron., 30, 2925-2928 (1994).
    [CrossRef]
  5. J.S. Sanghera, V.Q. Nguyen, P.C. Pureza, R.E. Miklos, F.H. Kung, and I.D. Aggarwal, Fabrication of long lengths of low-loss IR transmitting As40S(60-x)Sex glass fibers, J. Lightwave Technol., 14, 743-748, (1996).
    [CrossRef]
  6. B.R. Judd, Optical absorption intensities in rare earth ions, Phys. Rev., 127, 750-761 (1963).
    [CrossRef]
  7. G.S. Ofelt, Intensities of crystal spectra of rare earth ions, J. Chem. Phys., 37, 511-520 (1963).
    [CrossRef]
  8. M.J. Weber, Spontaneous emission probabilities and quantum efficiencies for excited states of Pr 3+ in LaF3, J. Chem. Phys., 48,.4774-4780 (1968).
    [CrossRef]
  9. S. Tanabe, T. Hanada, M. Watanabe, T. Hayashi, and N. Soga, Optical properties of dysprosium-doped low-phonon-energy glasses for a potential 1.3 mm optical amplifier, J. Am. Ceram. Soc., 78, 2917-2922 (1995).
    [CrossRef]
  10. J.R. Hector, D.W. Hewak, J. Wang, R.C. Moore, and W.S. Brocklesby, Quantum efficiency measurements in oxygen containing gallium lanthanum sulphide glasses and fibers doped with Pr 3+ , IEEE Photonics Technol. Lett., 9, 443-445, (1997).
    [CrossRef]
  11. Y. Ohishi, A. Mori, T. Kanamori, K. Fujiura and S. Sudo, Fabrication of praseodymium-doped arsenic sulfide chalcogenide fiber for 1.3 mm fiber amplifiers, Appl. Phys. Lett., 65, 13-15, (1994).
    [CrossRef]

Other

Shaw, S.R. Bowman, B.J. Feldman, and J. Ganem, Radiative and multiphonon relaxation of the mid-IR transitions of Pr 3+ in LaCl3, IEEE J. Quantum Electron., 32, 2166-2172 (1996).
[CrossRef]

J. Ganem, S.R. Bowman, and B.J. Feldman, Excited state dynamics of Pr 3+ :LaCl3, J. Lumin., 58, 298-302, (1994).
[CrossRef]

S.R. Bowman, L.B. Shaw, B.J. Feldman, and J. Ganem , A 7-mm praseodymium solid-state laser, IEEE J. Quantum Electron., 32, 646-649 (1994).
[CrossRef]

S.R. Bowman, J. Ganem, B.J. Feldman, and A.W. Kueny, Infrared laser characteristics of praseodymium-doped lanthanum trichloride, IEEE J. Quantum Electron., 30, 2925-2928 (1994).
[CrossRef]

J.S. Sanghera, V.Q. Nguyen, P.C. Pureza, R.E. Miklos, F.H. Kung, and I.D. Aggarwal, Fabrication of long lengths of low-loss IR transmitting As40S(60-x)Sex glass fibers, J. Lightwave Technol., 14, 743-748, (1996).
[CrossRef]

B.R. Judd, Optical absorption intensities in rare earth ions, Phys. Rev., 127, 750-761 (1963).
[CrossRef]

G.S. Ofelt, Intensities of crystal spectra of rare earth ions, J. Chem. Phys., 37, 511-520 (1963).
[CrossRef]

M.J. Weber, Spontaneous emission probabilities and quantum efficiencies for excited states of Pr 3+ in LaF3, J. Chem. Phys., 48,.4774-4780 (1968).
[CrossRef]

S. Tanabe, T. Hanada, M. Watanabe, T. Hayashi, and N. Soga, Optical properties of dysprosium-doped low-phonon-energy glasses for a potential 1.3 mm optical amplifier, J. Am. Ceram. Soc., 78, 2917-2922 (1995).
[CrossRef]

J.R. Hector, D.W. Hewak, J. Wang, R.C. Moore, and W.S. Brocklesby, Quantum efficiency measurements in oxygen containing gallium lanthanum sulphide glasses and fibers doped with Pr 3+ , IEEE Photonics Technol. Lett., 9, 443-445, (1997).
[CrossRef]

Y. Ohishi, A. Mori, T. Kanamori, K. Fujiura and S. Sudo, Fabrication of praseodymium-doped arsenic sulfide chalcogenide fiber for 1.3 mm fiber amplifiers, Appl. Phys. Lett., 65, 13-15, (1994).
[CrossRef]

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Figures (4)

Figure 1.
Figure 1.

Energy level diagram of Pr3+ ion showing IR emission wavelengths.

Figure 2.
Figure 2.

Room temperature absorption spectra of Pr3+ in BIGGSe. Raw spectra is shown at top in blue. Spectrum with Urbach and WAT absorption subtracted out is shown on the bottom in red.

Figure 3.
Figure 3.

Room temperature fluorescence spectra of Pr3+ in BIGGSe. Dips in spectra are associated with CO2, H-Se, and Ge-H absorption features

Figure 4.
Figure 4.

Room temperature fluorescence decay of the lower manifolds of Pr3+ in BIGGSe.

Tables (2)

Tables Icon

Table 1 Calculated radiative rates, branching ratios, and effective cross sections for Pr3+ in BIGGSe.

Tables Icon

Table 2 Calculated radiative rates, experimental lifetimes and calculated radiative quantum efficiencies for 0.1 wt. % Pr in BIGGSe.

Equations (12)

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band k ( λ ) = 8 π 3 e 2 3 hc N λ ( 2 J + 1 ) n 2 [ n ( n 2 + 2 ) 2 9 S JJ ' ed + n 3 S JJ ' md ]
S JJ ' ed = t = 2,4,6 Ω t 4 f n [ S , L ] J U t 4 f n [ S L ] J 2
Ω 2 = 15.7 × 10 20
Ω 4 = 4.0 × 10 20
Ω 6 = 12.7 × 10 20
A JJ ' ed = 64 π 4 e 2 3 h ( 2 J + 1 ) λ ̅ 3 n ( n 2 + 2 ) 2 9 S JJ ' ed
A JJ ' md = 64 π 4 e 2 3 h ( 2 J + 1 ) λ ̅ 3 n 3 S JJ ' md
A J = J A JJ '
β JJ ' = A JJ ' A J
= λ 2 8 π n 2 c A JJ ' .
1 τ = 1 τ rad + 1 τ nr
η = τ τ rad .

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