Abstract

Infrared emission at 1.8, 2.9, and 4.3 μm is measured in dysprosium-doped gallium lanthanum sulfide (Ga:La:S) glass excited at 815 nm. Emission cross sections were calculated by Judd–Ofelt analysis, the Füchtbauer–Ladenburg equation, and the theory of McCumber. The στ value for the 4.3-μm transition is ~4000 times larger in the Ga:La:S glass than in a dysprosium-doped LiYF4 crystal, which has lased on this transition. The large στ value and the recently reported ability of Ga:La:S glass to be fabricated into fiber form show the potential for an efficient, low-threshold mid-infrared fiber laser. The fluorescence peak at 4.3 mm coincides with the fundamental absorption of atmospheric carbon dioxide, making the glass a potential laser source for gas-sensing applications.

© 1996 Optical Society of America

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References

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  1. K. Wei, D. P. Machewirth, J. Wenzel, E. Snitzer, G. H. Sigel, Opt. Lett. 19, 904 (1994).
    [CrossRef] [PubMed]
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    [CrossRef]
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1996 (1)

D. W. Hewak, R. C. Moore, T. Schweizer, J. Wang, B. Samson, W. S. Brocklesby, D. N. Payne, E. J. Tarbox, Electron. Lett. 32, 384 (1996).
[CrossRef]

1995 (1)

J. Heo, J. Mater. Sci. Lett. 14, 1014 (1995).
[CrossRef]

1994 (2)

D. W. Hewak, B. N. Samson, J. A. Medeiros Neto, R. I. Laming, D. N. Payne, Electron. Lett. 30, 968 (1994).
[CrossRef]

K. Wei, D. P. Machewirth, J. Wenzel, E. Snitzer, G. H. Sigel, Opt. Lett. 19, 904 (1994).
[CrossRef] [PubMed]

1991 (2)

W. J. Miniscalco, R. S. Quimby, Opt. Lett. 16, 258 (1991).
[CrossRef] [PubMed]

N. B. Barnes, R. E. Allen, IEEE J. Quantum Electron. 27, 277 (1991).
[CrossRef]

1989 (1)

T. Y. Fan, M. R. Kokta, IEEE J. Quantum Electron. 25, 1845 (1989).
[CrossRef]

1966 (1)

M. J. Weber, Phys. Rev. 157, 262 (1966).
[CrossRef]

Allen, R. E.

N. B. Barnes, R. E. Allen, IEEE J. Quantum Electron. 27, 277 (1991).
[CrossRef]

Barnes, N. B.

N. B. Barnes, R. E. Allen, IEEE J. Quantum Electron. 27, 277 (1991).
[CrossRef]

Brocklesby, W. S.

D. W. Hewak, R. C. Moore, T. Schweizer, J. Wang, B. Samson, W. S. Brocklesby, D. N. Payne, E. J. Tarbox, Electron. Lett. 32, 384 (1996).
[CrossRef]

Fan, T. Y.

T. Y. Fan, M. R. Kokta, IEEE J. Quantum Electron. 25, 1845 (1989).
[CrossRef]

Heo, J.

J. Heo, J. Mater. Sci. Lett. 14, 1014 (1995).
[CrossRef]

Hewak, D. W.

D. W. Hewak, R. C. Moore, T. Schweizer, J. Wang, B. Samson, W. S. Brocklesby, D. N. Payne, E. J. Tarbox, Electron. Lett. 32, 384 (1996).
[CrossRef]

D. W. Hewak, B. N. Samson, J. A. Medeiros Neto, R. I. Laming, D. N. Payne, Electron. Lett. 30, 968 (1994).
[CrossRef]

Kokta, M. R.

T. Y. Fan, M. R. Kokta, IEEE J. Quantum Electron. 25, 1845 (1989).
[CrossRef]

Laming, R. I.

D. W. Hewak, B. N. Samson, J. A. Medeiros Neto, R. I. Laming, D. N. Payne, Electron. Lett. 30, 968 (1994).
[CrossRef]

Machewirth, D. P.

Medeiros Neto, J. A.

D. W. Hewak, B. N. Samson, J. A. Medeiros Neto, R. I. Laming, D. N. Payne, Electron. Lett. 30, 968 (1994).
[CrossRef]

Miniscalco, W. J.

Moore, R. C.

D. W. Hewak, R. C. Moore, T. Schweizer, J. Wang, B. Samson, W. S. Brocklesby, D. N. Payne, E. J. Tarbox, Electron. Lett. 32, 384 (1996).
[CrossRef]

Payne, D. N.

D. W. Hewak, R. C. Moore, T. Schweizer, J. Wang, B. Samson, W. S. Brocklesby, D. N. Payne, E. J. Tarbox, Electron. Lett. 32, 384 (1996).
[CrossRef]

D. W. Hewak, B. N. Samson, J. A. Medeiros Neto, R. I. Laming, D. N. Payne, Electron. Lett. 30, 968 (1994).
[CrossRef]

Quimby, R. S.

Samson, B.

D. W. Hewak, R. C. Moore, T. Schweizer, J. Wang, B. Samson, W. S. Brocklesby, D. N. Payne, E. J. Tarbox, Electron. Lett. 32, 384 (1996).
[CrossRef]

Samson, B. N.

D. W. Hewak, B. N. Samson, J. A. Medeiros Neto, R. I. Laming, D. N. Payne, Electron. Lett. 30, 968 (1994).
[CrossRef]

Schweizer, T.

D. W. Hewak, R. C. Moore, T. Schweizer, J. Wang, B. Samson, W. S. Brocklesby, D. N. Payne, E. J. Tarbox, Electron. Lett. 32, 384 (1996).
[CrossRef]

Sigel, G. H.

Snitzer, E.

Tarbox, E. J.

D. W. Hewak, R. C. Moore, T. Schweizer, J. Wang, B. Samson, W. S. Brocklesby, D. N. Payne, E. J. Tarbox, Electron. Lett. 32, 384 (1996).
[CrossRef]

Wang, J.

D. W. Hewak, R. C. Moore, T. Schweizer, J. Wang, B. Samson, W. S. Brocklesby, D. N. Payne, E. J. Tarbox, Electron. Lett. 32, 384 (1996).
[CrossRef]

Weber, M. J.

M. J. Weber, Phys. Rev. 157, 262 (1966).
[CrossRef]

Wei, K.

Wenzel, J.

Electron. Lett. (2)

D. W. Hewak, R. C. Moore, T. Schweizer, J. Wang, B. Samson, W. S. Brocklesby, D. N. Payne, E. J. Tarbox, Electron. Lett. 32, 384 (1996).
[CrossRef]

D. W. Hewak, B. N. Samson, J. A. Medeiros Neto, R. I. Laming, D. N. Payne, Electron. Lett. 30, 968 (1994).
[CrossRef]

IEEE J. Quantum Electron. (2)

T. Y. Fan, M. R. Kokta, IEEE J. Quantum Electron. 25, 1845 (1989).
[CrossRef]

N. B. Barnes, R. E. Allen, IEEE J. Quantum Electron. 27, 277 (1991).
[CrossRef]

J. Mater. Sci. Lett. (1)

J. Heo, J. Mater. Sci. Lett. 14, 1014 (1995).
[CrossRef]

Opt. Lett. (2)

Phys. Rev. (1)

M. J. Weber, Phys. Rev. 157, 262 (1966).
[CrossRef]

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Figures (3)

Fig. 1
Fig. 1

Room-temperature absorption spectrum of 9900-ppm Dy3+-doped Ga:La:S glass.

Fig. 2
Fig. 2

(a) Uncorrected Dy3+ fluorescence spectrum (6H11/26H13/2). (b) CO2 absorption of a white-light source measured with the Fourier-transform infrared spectrometer. (c) Corrected Dy3+ fluorescence spectrum (6H11/26H13/2).

Fig. 3
Fig. 3

Absorption cross sections and McCumber emission cross sections together with the scaled measured fluorescence spectra of the 1.76- and the 2.83-μm transitions of Dy3+-doped Ga:La:S glass.

Tables (1)

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Table 1 Radiative Properties of Dy3+-Doped Ga:La:S Glass

Equations (2)

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σ em , FL ( λ ) = A λ 5 I ( λ ) 8 π n 2 c λ I ( λ ) d λ ,
σ em , MC ( λ ) = σ abs ( λ ) Z l Z u exp ( E Z L 10 4 / λ k T ) ,

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