Abstract

The use of periodically poled KTiOPO4 as a gain medium in efficient nanosecond optical parametric oscillators pumped by a flash-lamp-pumped Qswitched Nd:YAG laser is demonstrated. Parametric radiation in the 1.82.5µm spectral region was achieved when the crystal temperature was tuned from 10 to 100 °C. A maximum total output energy of 1.8 mJ was obtained at a pump level of 3.5 mJ. Stable operation was achieved, with conversion efficiencies reaching 50%. No gray tracking or laser damage was observed, even for pump intensities of 450 MW/cm2.

© 1999 Optical Society of America

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References

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1997 (3)

P. B. Phua, B. X. Xu, T. C. Chong, and Y. C. Fong, Opt. Commun. 139, 320 (1997).
[CrossRef]

A. Englander, R. Lavi, M. Katz, M. Oron, D. Eger, E. Lebiush, G. Rosenman, and A. Skliar, Opt. Lett. 22, 1598 (1997).
[CrossRef]

H. Karlsson and F. Laurell, Appl. Phys. Lett. 71, 3474 (1997).
[CrossRef]

1996 (1)

H. Karlsson, F. Laurell, P. Henriksson, and G. Arvidsson, Electron. Lett. 32, 556 (1996).
[CrossRef]

1994 (1)

Q. Chen and W. P. Risk, Electron. Lett. 30, 1516 (1994).
[CrossRef]

1993 (1)

1991 (1)

K. Kato, IEEE J. Quantum Electron. 27, 1137 (1991).
[CrossRef]

1989 (1)

1979 (1)

S. J. Brosnan and R. L. Byer, IEEE J. Quantum Electron QE-15, 415 (1979).
[CrossRef]

Arie, A.

Arvidsson, G.

G. M. Gibson, G. A. Turnbull, M. Ebrahimzadeh, M. H. Dunn, H. Karlsson, G. Arvidsson, and F. Laurell, Appl. Phys. B 67, 675 (1998).
[CrossRef]

H. Karlsson, F. Laurell, P. Henriksson, and G. Arvidsson, Electron. Lett. 32, 556 (1996).
[CrossRef]

Aytür, O.

Bierlein, J. D.

Brosnan, S. J.

S. J. Brosnan and R. L. Byer, IEEE J. Quantum Electron QE-15, 415 (1979).
[CrossRef]

Byer, R. L.

S. J. Brosnan and R. L. Byer, IEEE J. Quantum Electron QE-15, 415 (1979).
[CrossRef]

Chen, Q.

Q. Chen and W. P. Risk, Electron. Lett. 30, 1516 (1994).
[CrossRef]

Chong, T. C.

P. B. Phua, B. X. Xu, T. C. Chong, and Y. C. Fong, Opt. Commun. 139, 320 (1997).
[CrossRef]

Dominic, V.

Dunn, M. H.

G. M. Gibson, G. A. Turnbull, M. Ebrahimzadeh, M. H. Dunn, H. Karlsson, G. Arvidsson, and F. Laurell, Appl. Phys. B 67, 675 (1998).
[CrossRef]

Ebrahimzadeh, M.

G. M. Gibson, G. A. Turnbull, M. Ebrahimzadeh, M. H. Dunn, H. Karlsson, G. Arvidsson, and F. Laurell, Appl. Phys. B 67, 675 (1998).
[CrossRef]

Eckardt, R. C.

Eger, D.

Englander, A.

Fong, Y. C.

P. B. Phua, B. X. Xu, T. C. Chong, and Y. C. Fong, Opt. Commun. 139, 320 (1997).
[CrossRef]

Garashi, A.

Gibson, G. M.

G. M. Gibson, G. A. Turnbull, M. Ebrahimzadeh, M. H. Dunn, H. Karlsson, G. Arvidsson, and F. Laurell, Appl. Phys. B 67, 675 (1998).
[CrossRef]

Henriksson, P.

H. Karlsson, F. Laurell, P. Henriksson, and G. Arvidsson, Electron. Lett. 32, 556 (1996).
[CrossRef]

Karlsson, H.

G. M. Gibson, G. A. Turnbull, M. Ebrahimzadeh, M. H. Dunn, H. Karlsson, G. Arvidsson, and F. Laurell, Appl. Phys. B 67, 675 (1998).
[CrossRef]

V. Pasiskevicius, S. Wang, J. A. Tellefsen, F. Laurell, and H. Karlsson, Appl. Opt. 37, 7116 (1998).
[CrossRef]

H. Karlsson and F. Laurell, Appl. Phys. Lett. 71, 3474 (1997).
[CrossRef]

H. Karlsson, F. Laurell, P. Henriksson, and G. Arvidsson, Electron. Lett. 32, 556 (1996).
[CrossRef]

Kartaloglu, T.

Kato, K.

K. Kato, IEEE J. Quantum Electron. 27, 1137 (1991).
[CrossRef]

Katz, M.

Kaz, A.

Köprülü, K. G.

Laurell, F.

G. M. Gibson, G. A. Turnbull, M. Ebrahimzadeh, M. H. Dunn, H. Karlsson, G. Arvidsson, and F. Laurell, Appl. Phys. B 67, 675 (1998).
[CrossRef]

V. Pasiskevicius, S. Wang, J. A. Tellefsen, F. Laurell, and H. Karlsson, Appl. Opt. 37, 7116 (1998).
[CrossRef]

H. Karlsson and F. Laurell, Appl. Phys. Lett. 71, 3474 (1997).
[CrossRef]

H. Karlsson, F. Laurell, P. Henriksson, and G. Arvidsson, Electron. Lett. 32, 556 (1996).
[CrossRef]

Lavi, R.

Lebiush, E.

Marshall, L. R.

Missey, M.

Myers, L. E.

Oron, M.

Pasiskevicius, V.

Phua, P. B.

P. B. Phua, B. X. Xu, T. C. Chong, and Y. C. Fong, Opt. Commun. 139, 320 (1997).
[CrossRef]

Risk, W. P.

Rosenman, G.

Skliar, A.

Sundheimer, M.

Tellefsen, J. A.

Turnbull, G. A.

G. M. Gibson, G. A. Turnbull, M. Ebrahimzadeh, M. H. Dunn, H. Karlsson, G. Arvidsson, and F. Laurell, Appl. Phys. B 67, 675 (1998).
[CrossRef]

Vanherzeele, H.

Wang, S.

Xu, B. X.

P. B. Phua, B. X. Xu, T. C. Chong, and Y. C. Fong, Opt. Commun. 139, 320 (1997).
[CrossRef]

Appl. Opt. (1)

Appl. Phys. B (1)

G. M. Gibson, G. A. Turnbull, M. Ebrahimzadeh, M. H. Dunn, H. Karlsson, G. Arvidsson, and F. Laurell, Appl. Phys. B 67, 675 (1998).
[CrossRef]

Appl. Phys. Lett. (1)

H. Karlsson and F. Laurell, Appl. Phys. Lett. 71, 3474 (1997).
[CrossRef]

Electron. Lett. (2)

Q. Chen and W. P. Risk, Electron. Lett. 30, 1516 (1994).
[CrossRef]

H. Karlsson, F. Laurell, P. Henriksson, and G. Arvidsson, Electron. Lett. 32, 556 (1996).
[CrossRef]

IEEE J. Quantum Electron (1)

S. J. Brosnan and R. L. Byer, IEEE J. Quantum Electron QE-15, 415 (1979).
[CrossRef]

IEEE J. Quantum Electron. (1)

K. Kato, IEEE J. Quantum Electron. 27, 1137 (1991).
[CrossRef]

J. Opt. Soc. Am. B (2)

Opt. Commun. (1)

P. B. Phua, B. X. Xu, T. C. Chong, and Y. C. Fong, Opt. Commun. 139, 320 (1997).
[CrossRef]

Opt. Lett. (4)

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Figures (3)

Fig. 1
Fig. 1

Measured signal and idler wavelengths versus temperature.

Fig. 2
Fig. 2

Total output pulse energy in the direction of the pump versus pump energy for the four OPO configurations. Filled squares, crystal A, Rout=Rin=90%; open circles, crystal A, Rout=90%, Rin=50%; triangles, crystal B, Rout=Rin=40%; crosses, crystal B without cavity, operating on the Fresnel reflections from the end faces of the sample. The conversion efficiency for crystal A, Rout=Rin=90%, is also displayed (filled circles). The signal and idler wavelengths were 1.85 and 2.50 µm, respectively.

Fig. 3
Fig. 3

Oscilloscope traces of the depleted pump pulse for different pump energies. Solid curve, undepleted pump pulse; dashed curve, 0.6 mJ; crosses, 1.6 mJ; filled circles, 3.4 mJ.

Tables (1)

Tables Icon

Table 1 Effective Nonlinear Coefficient Deduced from Measurements of the OPO Thresholds

Equations (2)

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Ith=1.8κgsLeff21+γ225Lcτ+2αl+ln1R+ln22,
κ=2ωsωideff2nsninpε0c3,

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