Abstract

Stable, broadly tunable cw lasing has been obtained from color centers in additively colored NaCl doped with K. The laser tunes from 1.42 to 1.76 μm with a peak output power of 530 mW when pumped by 6 W from a 1.06-μm Nd:YAG laser. Output power is strongly enhanced by exposing the crystal to an auxiliary UV light during lasing. No fading of output power has been observed over extended periods. The laser operates at 77 K; however, the crystals can be stored at room temperature. The active color center is tentatively identified as an (F2+)A center.

© 1985 Optical Society of America

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References

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  1. W. Gellermann, F. Luty, C. R. Pollock, Opt. Commun. 39, 391 (1981); L. F. Mollenauer, N. D. Viera, L. Szeto, Phys. Rev. B 27, 5332 (1983).
    [CrossRef]
  2. I. Schneider, M. Marrone, Opt. Lett. 4, 390 (1979).
    [CrossRef] [PubMed]
  3. L. F. Mollenauer, Opt. Lett. 1, 164 (1977).
    [CrossRef] [PubMed]
  4. L. F. Mollenauer, R. H. Stolen, J. P. Gordon, Phys. Rev. Lett. 45, 1095 (1980); L. F. Mollenauer, AT&T Bell Laboratories, Holmdel, N.J. 07733 (personal communication).
    [CrossRef]
  5. I. Schneider, Opt. Lett. 6, 157 (1981).
    [CrossRef] [PubMed]
  6. I. Schneider, C. Marquardt, Opt. Lett. 5, 214 (1980).
    [CrossRef] [PubMed]
  7. I. Schneider, Opt. Lett. 7, 271 (1982).
    [CrossRef] [PubMed]
  8. The data on the pure NaCl system were provided by L. F. Mollenauer (personal communication).
  9. Varian Part No. 954-5077, with approximately 0.6 cm of stock removed from the inside of each half.
  10. Coloration temperatures ranging from 650 to 730°C were also tried; the cooler temperature produced lighter-colored crystals, while the hotter range produced coloration similar to the 700°C runs.
  11. J. Schulman, W. Compton, Color Centers in Solids (Macmillan, New York, 1962), pp. 55–57.
  12. I. Schneider, Solid State Commun. 4, 569 (1966).
    [CrossRef]
  13. I. Schneider, C. R. Pollock, J. Appl. Phys. 54, 6193 (1983).
    [CrossRef]
  14. W. Huffer, R. Schneider, U. Brinkmann, Appl. Phys. 15, 157 (1978).
    [CrossRef]

1983 (1)

I. Schneider, C. R. Pollock, J. Appl. Phys. 54, 6193 (1983).
[CrossRef]

1982 (1)

1981 (2)

I. Schneider, Opt. Lett. 6, 157 (1981).
[CrossRef] [PubMed]

W. Gellermann, F. Luty, C. R. Pollock, Opt. Commun. 39, 391 (1981); L. F. Mollenauer, N. D. Viera, L. Szeto, Phys. Rev. B 27, 5332 (1983).
[CrossRef]

1980 (2)

L. F. Mollenauer, R. H. Stolen, J. P. Gordon, Phys. Rev. Lett. 45, 1095 (1980); L. F. Mollenauer, AT&T Bell Laboratories, Holmdel, N.J. 07733 (personal communication).
[CrossRef]

I. Schneider, C. Marquardt, Opt. Lett. 5, 214 (1980).
[CrossRef] [PubMed]

1979 (1)

1978 (1)

W. Huffer, R. Schneider, U. Brinkmann, Appl. Phys. 15, 157 (1978).
[CrossRef]

1977 (1)

1966 (1)

I. Schneider, Solid State Commun. 4, 569 (1966).
[CrossRef]

Brinkmann, U.

W. Huffer, R. Schneider, U. Brinkmann, Appl. Phys. 15, 157 (1978).
[CrossRef]

Compton, W.

J. Schulman, W. Compton, Color Centers in Solids (Macmillan, New York, 1962), pp. 55–57.

Gellermann, W.

W. Gellermann, F. Luty, C. R. Pollock, Opt. Commun. 39, 391 (1981); L. F. Mollenauer, N. D. Viera, L. Szeto, Phys. Rev. B 27, 5332 (1983).
[CrossRef]

Gordon, J. P.

L. F. Mollenauer, R. H. Stolen, J. P. Gordon, Phys. Rev. Lett. 45, 1095 (1980); L. F. Mollenauer, AT&T Bell Laboratories, Holmdel, N.J. 07733 (personal communication).
[CrossRef]

Huffer, W.

W. Huffer, R. Schneider, U. Brinkmann, Appl. Phys. 15, 157 (1978).
[CrossRef]

Luty, F.

W. Gellermann, F. Luty, C. R. Pollock, Opt. Commun. 39, 391 (1981); L. F. Mollenauer, N. D. Viera, L. Szeto, Phys. Rev. B 27, 5332 (1983).
[CrossRef]

Marquardt, C.

Marrone, M.

Mollenauer, L. F.

L. F. Mollenauer, R. H. Stolen, J. P. Gordon, Phys. Rev. Lett. 45, 1095 (1980); L. F. Mollenauer, AT&T Bell Laboratories, Holmdel, N.J. 07733 (personal communication).
[CrossRef]

L. F. Mollenauer, Opt. Lett. 1, 164 (1977).
[CrossRef] [PubMed]

The data on the pure NaCl system were provided by L. F. Mollenauer (personal communication).

Pollock, C. R.

I. Schneider, C. R. Pollock, J. Appl. Phys. 54, 6193 (1983).
[CrossRef]

W. Gellermann, F. Luty, C. R. Pollock, Opt. Commun. 39, 391 (1981); L. F. Mollenauer, N. D. Viera, L. Szeto, Phys. Rev. B 27, 5332 (1983).
[CrossRef]

Schneider, I.

Schneider, R.

W. Huffer, R. Schneider, U. Brinkmann, Appl. Phys. 15, 157 (1978).
[CrossRef]

Schulman, J.

J. Schulman, W. Compton, Color Centers in Solids (Macmillan, New York, 1962), pp. 55–57.

Stolen, R. H.

L. F. Mollenauer, R. H. Stolen, J. P. Gordon, Phys. Rev. Lett. 45, 1095 (1980); L. F. Mollenauer, AT&T Bell Laboratories, Holmdel, N.J. 07733 (personal communication).
[CrossRef]

Appl. Phys. (1)

W. Huffer, R. Schneider, U. Brinkmann, Appl. Phys. 15, 157 (1978).
[CrossRef]

J. Appl. Phys. (1)

I. Schneider, C. R. Pollock, J. Appl. Phys. 54, 6193 (1983).
[CrossRef]

Opt. Commun. (1)

W. Gellermann, F. Luty, C. R. Pollock, Opt. Commun. 39, 391 (1981); L. F. Mollenauer, N. D. Viera, L. Szeto, Phys. Rev. B 27, 5332 (1983).
[CrossRef]

Opt. Lett. (5)

Phys. Rev. Lett. (1)

L. F. Mollenauer, R. H. Stolen, J. P. Gordon, Phys. Rev. Lett. 45, 1095 (1980); L. F. Mollenauer, AT&T Bell Laboratories, Holmdel, N.J. 07733 (personal communication).
[CrossRef]

Solid State Commun. (1)

I. Schneider, Solid State Commun. 4, 569 (1966).
[CrossRef]

Other (4)

The data on the pure NaCl system were provided by L. F. Mollenauer (personal communication).

Varian Part No. 954-5077, with approximately 0.6 cm of stock removed from the inside of each half.

Coloration temperatures ranging from 650 to 730°C were also tried; the cooler temperature produced lighter-colored crystals, while the hotter range produced coloration similar to the 700°C runs.

J. Schulman, W. Compton, Color Centers in Solids (Macmillan, New York, 1962), pp. 55–57.

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Figures (3)

Fig. 1
Fig. 1

The color-center laser. The crystal is mounted on a cold finger enclosed in a vacuum Dewar (not shown). The lenses are actually mounted on bellows so that they can focus the beam onto the crystal and still maintain the integrity of the vacuum.

Fig. 2
Fig. 2

Power-tuning curve of the NaCl:K (F2+)A laser. The laser was pumped with 6 W from a TEM00 1.06-μm Nd:YAG laser for these data. The output power was cw and was measured with a thermopile detector.

Fig. 3
Fig. 3

Output power of the NaCl:K laser versus input power. Pin represents the actual output power of the pump laser. The actual power absorbed by the crystal was approximately 40% of the input power.

Tables (1)

Tables Icon

Table 1 Observed Absorption and Emission Wavelengths (in micrometers) for F2+ and (F2+)A Centers in NaCl and KCl

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