Abstract

Nd3+-doped KYF4 boules (5 cm long by 2 cm diameter) have been grown by the top-seeded solution method. The broad absorption spectra near 800 nm and the long (>500 μs) fluorescence lifetime of the 4F3/2 laser state in this host are attractive diode-pump features with advantages over Nd3+:Y3Al5O12 and Nd3+:YLF4. We have investigated cw and Q-switched operation of Nd3+:KYF4 end pumped by a Ti: sapphire laser. Absorbed power slope efficiencies of 30% have been measured, but thermal effects limit input powers to 300 mW into the crystal.

© 1993 Optical Society of America

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References

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  1. M. A. Dubinskii, “New fluoride laser hosts with natural site for rare-earth and actinide activation,” in Proceedings on Advanced Solid-State Lasers, G. Dube and L. Chase, eds., Vol. 10 of OSA Proceedings Series (Optical Society of America, Washington, D.C., 1991), pp. 348–352.
  2. M. A. Dubinskii, N. M. Khaidukov, I. G. Garipov, L. N. Dem’yanets, A. K. Naumov, V. V. Semashko, and V. A. Malyusov, “Spectral-kinetic and lasing characteristics of new Nd3+-activated laser hosts of the KF-YF3 system,” J. Mod. Opt. 37, 1355–1360 (1990).
    [CrossRef]
  3. C. A. Morrison and R. P. Leavitt, Handbook of the Physics and Chemistry of Rare Earths, K. A. Gschneider and L. Eyring, eds. (North-Holland, New York, 1982), Vol. 5, p. 626.
  4. J. Sytsma, S. J. Kroes, G. Blasse, and N. M. Khaidukov, “Spectroscopy of Gd3+ in KYF4: a system with several luminescent sites,” J. Phys. Condens. Matter 3, 8959–8966 (1991).
    [CrossRef]
  5. J. W. Pierce and H. Y. P. Hong, “Structural studies in the system KF-YF3,” (Massachusetts Institute of Technology Lincoln Laboratory, Cambridge, personal communication, 1974).
  6. B. R. Judd, “Optical absorption intensities of rare-earth ions,” Phys. Rev. 127, 750–761 (1962).
    [CrossRef]
  7. G. S. Ofelt, “Intensities of crystal spectra of rare-earth ions,” J. Chem. Phys. 37, 511–520 (1962).
    [CrossRef]
  8. T. S. Lomheim and L. G. DeShazer, “Optical-absorption intensities of trivalent neodymium in the uniaxial crystal yttrium orthovanadate,” J. Appl. Phys. 49, 5517–5522 (1978).
    [CrossRef]
  9. A. A. Kaminskii, Laser Crystals (Springer-Verlag, New York, 1981), Vol. 14, p. 154.
  10. D. Findlay and R. A. Clay, “The measurement of internal losses in 4-level lasers,” Phys. Lett. 20, 277–278 (1966).
    [CrossRef]

1991 (1)

J. Sytsma, S. J. Kroes, G. Blasse, and N. M. Khaidukov, “Spectroscopy of Gd3+ in KYF4: a system with several luminescent sites,” J. Phys. Condens. Matter 3, 8959–8966 (1991).
[CrossRef]

1990 (1)

M. A. Dubinskii, N. M. Khaidukov, I. G. Garipov, L. N. Dem’yanets, A. K. Naumov, V. V. Semashko, and V. A. Malyusov, “Spectral-kinetic and lasing characteristics of new Nd3+-activated laser hosts of the KF-YF3 system,” J. Mod. Opt. 37, 1355–1360 (1990).
[CrossRef]

1978 (1)

T. S. Lomheim and L. G. DeShazer, “Optical-absorption intensities of trivalent neodymium in the uniaxial crystal yttrium orthovanadate,” J. Appl. Phys. 49, 5517–5522 (1978).
[CrossRef]

1966 (1)

D. Findlay and R. A. Clay, “The measurement of internal losses in 4-level lasers,” Phys. Lett. 20, 277–278 (1966).
[CrossRef]

1962 (2)

B. R. Judd, “Optical absorption intensities of rare-earth ions,” Phys. Rev. 127, 750–761 (1962).
[CrossRef]

G. S. Ofelt, “Intensities of crystal spectra of rare-earth ions,” J. Chem. Phys. 37, 511–520 (1962).
[CrossRef]

Blasse, G.

J. Sytsma, S. J. Kroes, G. Blasse, and N. M. Khaidukov, “Spectroscopy of Gd3+ in KYF4: a system with several luminescent sites,” J. Phys. Condens. Matter 3, 8959–8966 (1991).
[CrossRef]

Clay, R. A.

D. Findlay and R. A. Clay, “The measurement of internal losses in 4-level lasers,” Phys. Lett. 20, 277–278 (1966).
[CrossRef]

Dem’yanets, L. N.

M. A. Dubinskii, N. M. Khaidukov, I. G. Garipov, L. N. Dem’yanets, A. K. Naumov, V. V. Semashko, and V. A. Malyusov, “Spectral-kinetic and lasing characteristics of new Nd3+-activated laser hosts of the KF-YF3 system,” J. Mod. Opt. 37, 1355–1360 (1990).
[CrossRef]

DeShazer, L. G.

T. S. Lomheim and L. G. DeShazer, “Optical-absorption intensities of trivalent neodymium in the uniaxial crystal yttrium orthovanadate,” J. Appl. Phys. 49, 5517–5522 (1978).
[CrossRef]

Dubinskii, M. A.

M. A. Dubinskii, N. M. Khaidukov, I. G. Garipov, L. N. Dem’yanets, A. K. Naumov, V. V. Semashko, and V. A. Malyusov, “Spectral-kinetic and lasing characteristics of new Nd3+-activated laser hosts of the KF-YF3 system,” J. Mod. Opt. 37, 1355–1360 (1990).
[CrossRef]

M. A. Dubinskii, “New fluoride laser hosts with natural site for rare-earth and actinide activation,” in Proceedings on Advanced Solid-State Lasers, G. Dube and L. Chase, eds., Vol. 10 of OSA Proceedings Series (Optical Society of America, Washington, D.C., 1991), pp. 348–352.

Findlay, D.

D. Findlay and R. A. Clay, “The measurement of internal losses in 4-level lasers,” Phys. Lett. 20, 277–278 (1966).
[CrossRef]

Garipov, I. G.

M. A. Dubinskii, N. M. Khaidukov, I. G. Garipov, L. N. Dem’yanets, A. K. Naumov, V. V. Semashko, and V. A. Malyusov, “Spectral-kinetic and lasing characteristics of new Nd3+-activated laser hosts of the KF-YF3 system,” J. Mod. Opt. 37, 1355–1360 (1990).
[CrossRef]

Hong, H. Y. P.

J. W. Pierce and H. Y. P. Hong, “Structural studies in the system KF-YF3,” (Massachusetts Institute of Technology Lincoln Laboratory, Cambridge, personal communication, 1974).

Judd, B. R.

B. R. Judd, “Optical absorption intensities of rare-earth ions,” Phys. Rev. 127, 750–761 (1962).
[CrossRef]

Kaminskii, A. A.

A. A. Kaminskii, Laser Crystals (Springer-Verlag, New York, 1981), Vol. 14, p. 154.

Khaidukov, N. M.

J. Sytsma, S. J. Kroes, G. Blasse, and N. M. Khaidukov, “Spectroscopy of Gd3+ in KYF4: a system with several luminescent sites,” J. Phys. Condens. Matter 3, 8959–8966 (1991).
[CrossRef]

M. A. Dubinskii, N. M. Khaidukov, I. G. Garipov, L. N. Dem’yanets, A. K. Naumov, V. V. Semashko, and V. A. Malyusov, “Spectral-kinetic and lasing characteristics of new Nd3+-activated laser hosts of the KF-YF3 system,” J. Mod. Opt. 37, 1355–1360 (1990).
[CrossRef]

Kroes, S. J.

J. Sytsma, S. J. Kroes, G. Blasse, and N. M. Khaidukov, “Spectroscopy of Gd3+ in KYF4: a system with several luminescent sites,” J. Phys. Condens. Matter 3, 8959–8966 (1991).
[CrossRef]

Leavitt, R. P.

C. A. Morrison and R. P. Leavitt, Handbook of the Physics and Chemistry of Rare Earths, K. A. Gschneider and L. Eyring, eds. (North-Holland, New York, 1982), Vol. 5, p. 626.

Lomheim, T. S.

T. S. Lomheim and L. G. DeShazer, “Optical-absorption intensities of trivalent neodymium in the uniaxial crystal yttrium orthovanadate,” J. Appl. Phys. 49, 5517–5522 (1978).
[CrossRef]

Malyusov, V. A.

M. A. Dubinskii, N. M. Khaidukov, I. G. Garipov, L. N. Dem’yanets, A. K. Naumov, V. V. Semashko, and V. A. Malyusov, “Spectral-kinetic and lasing characteristics of new Nd3+-activated laser hosts of the KF-YF3 system,” J. Mod. Opt. 37, 1355–1360 (1990).
[CrossRef]

Morrison, C. A.

C. A. Morrison and R. P. Leavitt, Handbook of the Physics and Chemistry of Rare Earths, K. A. Gschneider and L. Eyring, eds. (North-Holland, New York, 1982), Vol. 5, p. 626.

Naumov, A. K.

M. A. Dubinskii, N. M. Khaidukov, I. G. Garipov, L. N. Dem’yanets, A. K. Naumov, V. V. Semashko, and V. A. Malyusov, “Spectral-kinetic and lasing characteristics of new Nd3+-activated laser hosts of the KF-YF3 system,” J. Mod. Opt. 37, 1355–1360 (1990).
[CrossRef]

Ofelt, G. S.

G. S. Ofelt, “Intensities of crystal spectra of rare-earth ions,” J. Chem. Phys. 37, 511–520 (1962).
[CrossRef]

Pierce, J. W.

J. W. Pierce and H. Y. P. Hong, “Structural studies in the system KF-YF3,” (Massachusetts Institute of Technology Lincoln Laboratory, Cambridge, personal communication, 1974).

Semashko, V. V.

M. A. Dubinskii, N. M. Khaidukov, I. G. Garipov, L. N. Dem’yanets, A. K. Naumov, V. V. Semashko, and V. A. Malyusov, “Spectral-kinetic and lasing characteristics of new Nd3+-activated laser hosts of the KF-YF3 system,” J. Mod. Opt. 37, 1355–1360 (1990).
[CrossRef]

Sytsma, J.

J. Sytsma, S. J. Kroes, G. Blasse, and N. M. Khaidukov, “Spectroscopy of Gd3+ in KYF4: a system with several luminescent sites,” J. Phys. Condens. Matter 3, 8959–8966 (1991).
[CrossRef]

J. Appl. Phys. (1)

T. S. Lomheim and L. G. DeShazer, “Optical-absorption intensities of trivalent neodymium in the uniaxial crystal yttrium orthovanadate,” J. Appl. Phys. 49, 5517–5522 (1978).
[CrossRef]

J. Chem. Phys. (1)

G. S. Ofelt, “Intensities of crystal spectra of rare-earth ions,” J. Chem. Phys. 37, 511–520 (1962).
[CrossRef]

J. Mod. Opt. (1)

M. A. Dubinskii, N. M. Khaidukov, I. G. Garipov, L. N. Dem’yanets, A. K. Naumov, V. V. Semashko, and V. A. Malyusov, “Spectral-kinetic and lasing characteristics of new Nd3+-activated laser hosts of the KF-YF3 system,” J. Mod. Opt. 37, 1355–1360 (1990).
[CrossRef]

J. Phys. Condens. Matter (1)

J. Sytsma, S. J. Kroes, G. Blasse, and N. M. Khaidukov, “Spectroscopy of Gd3+ in KYF4: a system with several luminescent sites,” J. Phys. Condens. Matter 3, 8959–8966 (1991).
[CrossRef]

Phys. Lett. (1)

D. Findlay and R. A. Clay, “The measurement of internal losses in 4-level lasers,” Phys. Lett. 20, 277–278 (1966).
[CrossRef]

Phys. Rev. (1)

B. R. Judd, “Optical absorption intensities of rare-earth ions,” Phys. Rev. 127, 750–761 (1962).
[CrossRef]

Other (4)

M. A. Dubinskii, “New fluoride laser hosts with natural site for rare-earth and actinide activation,” in Proceedings on Advanced Solid-State Lasers, G. Dube and L. Chase, eds., Vol. 10 of OSA Proceedings Series (Optical Society of America, Washington, D.C., 1991), pp. 348–352.

A. A. Kaminskii, Laser Crystals (Springer-Verlag, New York, 1981), Vol. 14, p. 154.

J. W. Pierce and H. Y. P. Hong, “Structural studies in the system KF-YF3,” (Massachusetts Institute of Technology Lincoln Laboratory, Cambridge, personal communication, 1974).

C. A. Morrison and R. P. Leavitt, Handbook of the Physics and Chemistry of Rare Earths, K. A. Gschneider and L. Eyring, eds. (North-Holland, New York, 1982), Vol. 5, p. 626.

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Figures (6)

Fig. 1
Fig. 1

Room-temperature absorption spectra of Nd3+ -doped KYF4 and YLF4 at GaAlAs diode laser wavelengths.

Fig. 2
Fig. 2

Absorption spectrum at 11 K in the region of the 4I9/22P1/2 transition.

Fig. 3
Fig. 3

Room-temperature fluorescence spectrum of the 4F3/24I11/2 transition.

Fig. 4
Fig. 4

Room-temperature fluorescence spectrum of the 4F1/24I13/2 transition.

Fig. 5
Fig. 5

Ti:sapphire end-pump laser performance of Nd3+:KYF4 for output couplers having reflectivities of 99% (diamonds) and 98% (squares).

Fig. 6
Fig. 6

Findlay–Clay plot for 7-mm-long Nd3+KYF4 crystal pumped by a chopped cw Ti: sapphire laser.

Tables (2)

Tables Icon

Table 1 Averaged, Integrated Absorption Coefficients and Line Strengths (Measured and Calculated) for Nd3+:KYF4a

Tables Icon

Table 2 Judd–Ofelt Parameters and Predicted Fluorescence Properties of Nd3+:KYF4

Equations (3)

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S meas = [ 3 ( 2 J + 1 ) / 4 π 2 N α f λ ¯ ] [ 9 n / ( n 2 + 2 ) 2 ] Γ .
σ ( σ , π ) = ( λ 2 / 8 π c n 2 ) A ( σ , π ) g ( ν ) ,
A tot = 1 / 3 A π + 2 / 3 A σ .

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