Abstract

Second-harmonic conversion efficiencies of 80% for type I KDP crystals and 70% for type II have been demonstrated with 500-fs, 1.053-μm laser pulses at intensities as high as 400 GW/cm2. The results are generally in good agreement with simulations and indicate that self-phase modulation and cross-phase modulation may be significant. For type II conversion with a predelay between the input o and e waves, some evidence is obtained of pulse shortening to ~100 fs.

© 1995 Optical Society of America

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References

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1993

1992

1991

1990

Y. Wang, R. Dragila, Phys. Rev. A 41, 5645 (1990).
[CrossRef] [PubMed]

1987

1985

D. Strickland, G. Mourou, Opt. Commun. 56, 219 (1985).
[CrossRef]

1982

L. S. Telegin, A. S. Chirkin, Sov. J. Quantum Electron. 12, 1354 (1982).
[CrossRef]

1981

R. S. Craxton, IEEE J. Quantum Electron. QE-17, 1771 (1981).
[CrossRef]

1976

D. Milam, M. Weber, Opt. Commun. 18, 172 (1976).
[CrossRef]

Agrawal, G. P.

G. P. Agrawal, Nonlinear Fiber Optics (Academic, San Diego, Calif., 1989), Chap. 7, pp. 173–179.

Beaudoin, Y.

Brun, A.

Cao, X. D.

Chaker, M.

Chien, C. Y.

Chirkin, A. S.

L. S. Telegin, A. S. Chirkin, Sov. J. Quantum Electron. 12, 1354 (1982).
[CrossRef]

Chuang, Y.-H.

Coe, J. S.

Craxton, R. S.

Dragila, R.

Y. Wang, R. Dragila, Phys. Rev. A 41, 5645 (1990).
[CrossRef] [PubMed]

Georges, P.

Gilles, D.

Kieffer, J. C.

Luther-Davies, B.

McKinstrie, C. J.

Meyerhofer, D. D.

Milam, D.

D. Milam, M. Weber, Opt. Commun. 18, 172 (1976).
[CrossRef]

Mourou, G.

Peyrusse, O.

Roger, G.

Salin, F.

Strickland, D.

D. Strickland, G. Mourou, Opt. Commun. 56, 219 (1985).
[CrossRef]

Tapié, J. L.

Telegin, L. S.

L. S. Telegin, A. S. Chirkin, Sov. J. Quantum Electron. 12, 1354 (1982).
[CrossRef]

Wang, Y.

Weber, M.

D. Milam, M. Weber, Opt. Commun. 18, 172 (1976).
[CrossRef]

Appl. Opt.

IEEE J. Quantum Electron.

R. S. Craxton, IEEE J. Quantum Electron. QE-17, 1771 (1981).
[CrossRef]

J. Opt. Soc. Am. B

Opt. Commun.

D. Milam, M. Weber, Opt. Commun. 18, 172 (1976).
[CrossRef]

D. Strickland, G. Mourou, Opt. Commun. 56, 219 (1985).
[CrossRef]

Opt. Lett.

Phys. Rev. A

Y. Wang, R. Dragila, Phys. Rev. A 41, 5645 (1990).
[CrossRef] [PubMed]

Sov. J. Quantum Electron.

L. S. Telegin, A. S. Chirkin, Sov. J. Quantum Electron. 12, 1354 (1982).
[CrossRef]

Other

G. P. Agrawal, Nonlinear Fiber Optics (Academic, San Diego, Calif., 1989), Chap. 7, pp. 173–179.

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Figures (3)

Fig. 1
Fig. 1

SHG efficiency as a function of input laser intensity for (a) a 4-mm type I KDP crystal, (b) a 5-mm type II KDP crystal, and (c) a 4-mm detuned type II KD*P crystal followed by a 5-mm type II KDP crystal. Dashed curves, simulations for χ(3) = 0 and no detuning; solid curves, simulations including χ(3) with various angle detunings (in milliradians away from the optic axis). The double-dotted curve in (b) is for a 3-mm crystal with χ(3) = 0.

Fig. 2
Fig. 2

Dependence of the SHG efficiency on the polarization angle of the incident laser. Dashed curve, single 5-mm type II KDP crystal at 77 GW/cm2; solid curve, predelay scheme at 51 GW/cm2.

Fig. 3
Fig. 3

(a) Experimental and simulated second-harmonic autocorrelation intensity for the predelay scheme at 119 GW/cm2. The simulation includes χ(3) effects and assumes a detuning of 1.8 mrad. (b) Simulated second-harmonic pulse shape at the output of the KDP crystal (electric field versus time).

Equations (1)

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E 3 z + 1 V g 3 E 3 t = - 1 2 γ 3 E 3 - i K 3 E 1 E 2 exp ( i Δ k z ) + i ( α 31 E 1 2 + α 32 E 2 2 + α 33 E 3 2 ) E 3 ,

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