Abstract

We report the production and main optical and laser properties of (F2+)H color centers in sulfur-doped NaCl crystals. Using a 1.06-μm Nd:YAG laser as the pump source, we realize continuous-wave and synchronously mode-locked laser operation. The laser is tunable over a remarkably large wavelength range of 1.43–2.0 μm. Output power levels are as much as ~800 mW near 1.6 μm; mode-locked pulse durations are typically 4–7 ps.

© 1994 Optical Society of America

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References

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  1. J. F. Pinto, L. Stratton, C. R. Pollock, Opt. Lett. 10, 384 (1985).
    [CrossRef] [PubMed]
  2. K. R. German, C. R. Pollock, Opt. Lett. 11, 519 (1986).
    [CrossRef]
  3. C. P. Yakymyshyn, J. F. Pinto, C. R. Pollock, Opt. Lett. 14, 621 (1989).
    [CrossRef] [PubMed]
  4. W. Gellermann, F. Luty, C. R. Pollock, Opt. Commun. 39, 391 (1981).
    [CrossRef]
  5. D. Wandt, W. Gellermann, F. Luty, H. Welling, J. Appl. Phys. 61, 864 (1987).
    [CrossRef]
  6. E. Georgiou, J. F. Pinto, C. R. Pollock, Phys. Rev. B 35, 7636 (1987).
    [CrossRef]
  7. D. Wandt, W. Gellermann, Opt. Commun. 61, 405 (1987).
    [CrossRef]
  8. K. Möllmann, F. Mitschke, W. Gellermann, Opt. Commun. 83, 177 (1991).
    [CrossRef]
  9. K Möllmann, M. Schrempel, W. Gellermann, “Subpicosecond and continuous-wave laser operation of (F2+)H and (F2+)AH color-center lasers in the 2-μm range,” Opt. Lett. (to be published).
  10. G. Steinmeyer, U. Morgner, M. Ostermeyer, F. Mitschke, H. Welling, Opt. Lett. 18, 1544 (1993).
    [CrossRef] [PubMed]
  11. P. Hennl, Phys. Status Solidi A 46, 147 (1978).
    [CrossRef]
  12. W. Gellermann, J. Phys. Chem. Solids 52, 249 (1991).
    [CrossRef]

1993 (1)

1991 (2)

K. Möllmann, F. Mitschke, W. Gellermann, Opt. Commun. 83, 177 (1991).
[CrossRef]

W. Gellermann, J. Phys. Chem. Solids 52, 249 (1991).
[CrossRef]

1989 (1)

1987 (3)

D. Wandt, W. Gellermann, F. Luty, H. Welling, J. Appl. Phys. 61, 864 (1987).
[CrossRef]

E. Georgiou, J. F. Pinto, C. R. Pollock, Phys. Rev. B 35, 7636 (1987).
[CrossRef]

D. Wandt, W. Gellermann, Opt. Commun. 61, 405 (1987).
[CrossRef]

1986 (1)

1985 (1)

1981 (1)

W. Gellermann, F. Luty, C. R. Pollock, Opt. Commun. 39, 391 (1981).
[CrossRef]

1978 (1)

P. Hennl, Phys. Status Solidi A 46, 147 (1978).
[CrossRef]

Gellermann, W.

K. Möllmann, F. Mitschke, W. Gellermann, Opt. Commun. 83, 177 (1991).
[CrossRef]

W. Gellermann, J. Phys. Chem. Solids 52, 249 (1991).
[CrossRef]

D. Wandt, W. Gellermann, Opt. Commun. 61, 405 (1987).
[CrossRef]

D. Wandt, W. Gellermann, F. Luty, H. Welling, J. Appl. Phys. 61, 864 (1987).
[CrossRef]

W. Gellermann, F. Luty, C. R. Pollock, Opt. Commun. 39, 391 (1981).
[CrossRef]

K Möllmann, M. Schrempel, W. Gellermann, “Subpicosecond and continuous-wave laser operation of (F2+)H and (F2+)AH color-center lasers in the 2-μm range,” Opt. Lett. (to be published).

Georgiou, E.

E. Georgiou, J. F. Pinto, C. R. Pollock, Phys. Rev. B 35, 7636 (1987).
[CrossRef]

German, K. R.

Hennl, P.

P. Hennl, Phys. Status Solidi A 46, 147 (1978).
[CrossRef]

Luty, F.

D. Wandt, W. Gellermann, F. Luty, H. Welling, J. Appl. Phys. 61, 864 (1987).
[CrossRef]

W. Gellermann, F. Luty, C. R. Pollock, Opt. Commun. 39, 391 (1981).
[CrossRef]

Mitschke, F.

Möllmann, K

K Möllmann, M. Schrempel, W. Gellermann, “Subpicosecond and continuous-wave laser operation of (F2+)H and (F2+)AH color-center lasers in the 2-μm range,” Opt. Lett. (to be published).

Möllmann, K.

K. Möllmann, F. Mitschke, W. Gellermann, Opt. Commun. 83, 177 (1991).
[CrossRef]

Morgner, U.

Ostermeyer, M.

Pinto, J. F.

Pollock, C. R.

Schrempel, M.

K Möllmann, M. Schrempel, W. Gellermann, “Subpicosecond and continuous-wave laser operation of (F2+)H and (F2+)AH color-center lasers in the 2-μm range,” Opt. Lett. (to be published).

Steinmeyer, G.

Stratton, L.

Wandt, D.

D. Wandt, W. Gellermann, F. Luty, H. Welling, J. Appl. Phys. 61, 864 (1987).
[CrossRef]

D. Wandt, W. Gellermann, Opt. Commun. 61, 405 (1987).
[CrossRef]

Welling, H.

Yakymyshyn, C. P.

J. Appl. Phys. (1)

D. Wandt, W. Gellermann, F. Luty, H. Welling, J. Appl. Phys. 61, 864 (1987).
[CrossRef]

J. Phys. Chem. Solids (1)

W. Gellermann, J. Phys. Chem. Solids 52, 249 (1991).
[CrossRef]

Opt. Commun. (3)

W. Gellermann, F. Luty, C. R. Pollock, Opt. Commun. 39, 391 (1981).
[CrossRef]

D. Wandt, W. Gellermann, Opt. Commun. 61, 405 (1987).
[CrossRef]

K. Möllmann, F. Mitschke, W. Gellermann, Opt. Commun. 83, 177 (1991).
[CrossRef]

Opt. Lett. (4)

Phys. Rev. B (1)

E. Georgiou, J. F. Pinto, C. R. Pollock, Phys. Rev. B 35, 7636 (1987).
[CrossRef]

Phys. Status Solidi A (1)

P. Hennl, Phys. Status Solidi A 46, 147 (1978).
[CrossRef]

Other (1)

K Möllmann, M. Schrempel, W. Gellermann, “Subpicosecond and continuous-wave laser operation of (F2+)H and (F2+)AH color-center lasers in the 2-μm range,” Opt. Lett. (to be published).

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Figures (5)

Fig. 1
Fig. 1

Absorption spectra (300 K) of a NaCl:Na2S crystal after crystal growth (solid curve) and after subsequent exposure to UV light (dashed curve). The solid curve corresponds to transitions of S2− vacancy defects, S2− □; UV light irradiation forms the F centers.

Fig. 2
Fig. 2

Absorption spectra (10 K) of a NaCl crystal doped with 5 × 10−5 mol. Na2S after additive coloration and quenching (dotted curves), after subsequent exposure to F-band light at 300 K (dashed curves), and after subsequent exposure to F-band light at 100 K (solid curves).

Fig. 3
Fig. 3

Emission spectra of F2+:S2− (solid curves) and F2+:O2− centers (dashed curves) in NaCl, measured at 10 K, obtained under excitation by 1.06-μm light before (short-wavelength emission) and after (long-wavelength emission) exposure of the crystal to 460-nm light at 100 K. Each center system yields two fluorescence curves that correspond to two different (F2+)H-center configurations.

Fig. 4
Fig. 4

Tuning behavior of a continuous-wave NaCl F2+:S2−-center laser. The crystal was pumped by a 1.06-μm Nd:YAG laser (8 W) and tuned in the 1.6-μm region with a grating having ~15% output coupling in zero grating order. In the wings of the tuning curve, a quartz prism was used in combination with a 4% output coupler. Three different mirror sets (denoted by the different sets of symbols) are used to achieve tuning over the ~570-nm-wide range.

Fig. 5
Fig. 5

Autocorrelation traces of the synchronously mode-locked NaCl F2+:S2−-center laser. Left trace, free-running operation; right trace, operation with a bandwidth-limiting 5-mm-thick birefringent quartz plate.

Tables (1)

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Table 1 F2+:S2− Centers in NaCla

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