Abstract

We present a spectroscopic study of the green fluorescence resulting from pump excited-state absorption in Er-doped silica fibers excited in the 800-nm range. The absorption and emission bands are selectively attributed to the 4S3/2 and 2H11/2 levels. The fluorescence response at two excitation wavelengths, the temperature behavior, and lifetime measurements demonstrate a fast thermalization between the 4S3/2 and 2H11/2 levels. This explains an important part of the 2H11/2 emission and the increase of the fluorescence intensity at high temperature.

© 1994 Optical Society of America

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References

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  1. C. G. Atkins, J. R. Armitage, R. Wyatt, B. J. Ainslie, S. P. Craig-Ryan, Opt. Commun. 73, 217 (1989).
    [CrossRef]
  2. R. A. Betts, F. F. Kühl, T. M. Kwok, G. F. Zheng, Int. J. Optoelectron. 6, 47 (1991).
  3. M. D. Shinn, W. A. Sibley, M. G. Drexhage, R. N. Brown, Phys. Rev. B 27, 6635 (1993).
    [CrossRef]
  4. P. A. Krug, M. G. Sceats, G. R. Atkins, S. C. Guy, S. B. Poole, Opt. Lett. 16, 1976 (1991).
    [CrossRef] [PubMed]
  5. J. Thogersen, N. Bjerre, J. Mark, Opt. Lett. 18, 197 (1993).
    [CrossRef]
  6. H. Berthou, C. K. Jörgensen, Opt. Lett. 15, 1100 (1990).
    [CrossRef] [PubMed]

1993 (2)

M. D. Shinn, W. A. Sibley, M. G. Drexhage, R. N. Brown, Phys. Rev. B 27, 6635 (1993).
[CrossRef]

J. Thogersen, N. Bjerre, J. Mark, Opt. Lett. 18, 197 (1993).
[CrossRef]

1991 (2)

P. A. Krug, M. G. Sceats, G. R. Atkins, S. C. Guy, S. B. Poole, Opt. Lett. 16, 1976 (1991).
[CrossRef] [PubMed]

R. A. Betts, F. F. Kühl, T. M. Kwok, G. F. Zheng, Int. J. Optoelectron. 6, 47 (1991).

1990 (1)

1989 (1)

C. G. Atkins, J. R. Armitage, R. Wyatt, B. J. Ainslie, S. P. Craig-Ryan, Opt. Commun. 73, 217 (1989).
[CrossRef]

Ainslie, B. J.

C. G. Atkins, J. R. Armitage, R. Wyatt, B. J. Ainslie, S. P. Craig-Ryan, Opt. Commun. 73, 217 (1989).
[CrossRef]

Armitage, J. R.

C. G. Atkins, J. R. Armitage, R. Wyatt, B. J. Ainslie, S. P. Craig-Ryan, Opt. Commun. 73, 217 (1989).
[CrossRef]

Atkins, C. G.

C. G. Atkins, J. R. Armitage, R. Wyatt, B. J. Ainslie, S. P. Craig-Ryan, Opt. Commun. 73, 217 (1989).
[CrossRef]

Atkins, G. R.

Berthou, H.

Betts, R. A.

R. A. Betts, F. F. Kühl, T. M. Kwok, G. F. Zheng, Int. J. Optoelectron. 6, 47 (1991).

Bjerre, N.

Brown, R. N.

M. D. Shinn, W. A. Sibley, M. G. Drexhage, R. N. Brown, Phys. Rev. B 27, 6635 (1993).
[CrossRef]

Craig-Ryan, S. P.

C. G. Atkins, J. R. Armitage, R. Wyatt, B. J. Ainslie, S. P. Craig-Ryan, Opt. Commun. 73, 217 (1989).
[CrossRef]

Drexhage, M. G.

M. D. Shinn, W. A. Sibley, M. G. Drexhage, R. N. Brown, Phys. Rev. B 27, 6635 (1993).
[CrossRef]

Guy, S. C.

Jörgensen, C. K.

Krug, P. A.

Kühl, F. F.

R. A. Betts, F. F. Kühl, T. M. Kwok, G. F. Zheng, Int. J. Optoelectron. 6, 47 (1991).

Kwok, T. M.

R. A. Betts, F. F. Kühl, T. M. Kwok, G. F. Zheng, Int. J. Optoelectron. 6, 47 (1991).

Mark, J.

Poole, S. B.

Sceats, M. G.

Shinn, M. D.

M. D. Shinn, W. A. Sibley, M. G. Drexhage, R. N. Brown, Phys. Rev. B 27, 6635 (1993).
[CrossRef]

Sibley, W. A.

M. D. Shinn, W. A. Sibley, M. G. Drexhage, R. N. Brown, Phys. Rev. B 27, 6635 (1993).
[CrossRef]

Thogersen, J.

Wyatt, R.

C. G. Atkins, J. R. Armitage, R. Wyatt, B. J. Ainslie, S. P. Craig-Ryan, Opt. Commun. 73, 217 (1989).
[CrossRef]

Zheng, G. F.

R. A. Betts, F. F. Kühl, T. M. Kwok, G. F. Zheng, Int. J. Optoelectron. 6, 47 (1991).

Int. J. Optoelectron. (1)

R. A. Betts, F. F. Kühl, T. M. Kwok, G. F. Zheng, Int. J. Optoelectron. 6, 47 (1991).

Opt. Commun. (1)

C. G. Atkins, J. R. Armitage, R. Wyatt, B. J. Ainslie, S. P. Craig-Ryan, Opt. Commun. 73, 217 (1989).
[CrossRef]

Opt. Lett. (3)

Phys. Rev. B (1)

M. D. Shinn, W. A. Sibley, M. G. Drexhage, R. N. Brown, Phys. Rev. B 27, 6635 (1993).
[CrossRef]

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Figures (4)

Fig. 1
Fig. 1

Energy-level diagram of Er3+ ion in the fiber studied. Only levels taking part in pump excited-state absorption are shown.

Fig. 2
Fig. 2

Absorption curves in the pumping and emission ranges at 77 K (triangular symbols) and 300 K (oblong symbols).

Fig. 3
Fig. 3

Green fluorescence spectra for two pumping wavelengths: (a) 847 nm, (b) 796 nm.

Fig. 4
Fig. 4

Evolution of the green fluorescence with temperature.

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