Abstract

Synchronizing a picosecond laser pulse with a nanosecond one would be useful in laser fusion research. Amplitude modulation of a picosecond spectrum makes this possible; this passive technique has already been studied by C. Froehly and demonstrated by B. Colombeau. It is shown here that this kind of pulse shaper is usable on a power laser chain. Starting from a 40-psec pulse, several pulse shapes with durations up to 640- and 40-psec rise time have been obtained at different power levels. Efficiency and signal to noise ratio of the system have been studied. The diffraction-limited beam has been amplified in a power laser chain.

© 1981 Optical Society of America

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References

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  1. E. B. Treacy, Phys. Lett. A. 28, 34 (1968).
    [Crossref]
  2. A. Penzkofer, D. von der Linde, A. Laubereau, W. Kaiser, Appl. Phys. Lett. 20, 351 (1972).
    [Crossref]
  3. R. A. Fisher, W. Bischel, Appl. Phys. Lett. 23, 661 (1973).
    [Crossref]
  4. J. Agostinelli, G. Mourou, C. W. Gabel, Appl. Opt. 18, 2500 (1979).
    [Crossref] [PubMed]
  5. V. I. Kryzhanovski et al., Sov. Phys. Tech. Phys. Lett. 3, 13 (1977).
  6. J. Desbois, F. Gires, P. Tournois, IEEE J. Quantum Electron. QE-9, 213 (1973).
    [Crossref]
  7. J. Agostinelli, G. Harvey, T. Stone, C. Gabel, Appl. Opt. 18, 2500 (1979).
    [Crossref] [PubMed]
  8. B. Colombeau, M. Vampouille, C. Froehly, Opt. Commun. 19, 201 (1976).
    [Crossref]
  9. C. Froehly, A. Lacourt, J. C. Vienot, Nouv. Rev. Opt. 4, 183 (1973).
    [Crossref]
  10. C. Cavailler, C. Delmare, N. Fleurot, J. Y. Le Gall, in Proceedings, Thirteenth International Congress on High Speed Photography and Photonics, Shin-ichi Hyodo, Ed. (Japan Society of Precision Engineering, Tokyo, 1978), p. 590.

1979 (2)

1977 (1)

V. I. Kryzhanovski et al., Sov. Phys. Tech. Phys. Lett. 3, 13 (1977).

1976 (1)

B. Colombeau, M. Vampouille, C. Froehly, Opt. Commun. 19, 201 (1976).
[Crossref]

1973 (3)

C. Froehly, A. Lacourt, J. C. Vienot, Nouv. Rev. Opt. 4, 183 (1973).
[Crossref]

R. A. Fisher, W. Bischel, Appl. Phys. Lett. 23, 661 (1973).
[Crossref]

J. Desbois, F. Gires, P. Tournois, IEEE J. Quantum Electron. QE-9, 213 (1973).
[Crossref]

1972 (1)

A. Penzkofer, D. von der Linde, A. Laubereau, W. Kaiser, Appl. Phys. Lett. 20, 351 (1972).
[Crossref]

1968 (1)

E. B. Treacy, Phys. Lett. A. 28, 34 (1968).
[Crossref]

Agostinelli, J.

Bischel, W.

R. A. Fisher, W. Bischel, Appl. Phys. Lett. 23, 661 (1973).
[Crossref]

Cavailler, C.

C. Cavailler, C. Delmare, N. Fleurot, J. Y. Le Gall, in Proceedings, Thirteenth International Congress on High Speed Photography and Photonics, Shin-ichi Hyodo, Ed. (Japan Society of Precision Engineering, Tokyo, 1978), p. 590.

Colombeau, B.

B. Colombeau, M. Vampouille, C. Froehly, Opt. Commun. 19, 201 (1976).
[Crossref]

Delmare, C.

C. Cavailler, C. Delmare, N. Fleurot, J. Y. Le Gall, in Proceedings, Thirteenth International Congress on High Speed Photography and Photonics, Shin-ichi Hyodo, Ed. (Japan Society of Precision Engineering, Tokyo, 1978), p. 590.

Desbois, J.

J. Desbois, F. Gires, P. Tournois, IEEE J. Quantum Electron. QE-9, 213 (1973).
[Crossref]

Fisher, R. A.

R. A. Fisher, W. Bischel, Appl. Phys. Lett. 23, 661 (1973).
[Crossref]

Fleurot, N.

C. Cavailler, C. Delmare, N. Fleurot, J. Y. Le Gall, in Proceedings, Thirteenth International Congress on High Speed Photography and Photonics, Shin-ichi Hyodo, Ed. (Japan Society of Precision Engineering, Tokyo, 1978), p. 590.

Froehly, C.

B. Colombeau, M. Vampouille, C. Froehly, Opt. Commun. 19, 201 (1976).
[Crossref]

C. Froehly, A. Lacourt, J. C. Vienot, Nouv. Rev. Opt. 4, 183 (1973).
[Crossref]

Gabel, C.

Gabel, C. W.

Gires, F.

J. Desbois, F. Gires, P. Tournois, IEEE J. Quantum Electron. QE-9, 213 (1973).
[Crossref]

Harvey, G.

Kaiser, W.

A. Penzkofer, D. von der Linde, A. Laubereau, W. Kaiser, Appl. Phys. Lett. 20, 351 (1972).
[Crossref]

Kryzhanovski, V. I.

V. I. Kryzhanovski et al., Sov. Phys. Tech. Phys. Lett. 3, 13 (1977).

Lacourt, A.

C. Froehly, A. Lacourt, J. C. Vienot, Nouv. Rev. Opt. 4, 183 (1973).
[Crossref]

Laubereau, A.

A. Penzkofer, D. von der Linde, A. Laubereau, W. Kaiser, Appl. Phys. Lett. 20, 351 (1972).
[Crossref]

Le Gall, J. Y.

C. Cavailler, C. Delmare, N. Fleurot, J. Y. Le Gall, in Proceedings, Thirteenth International Congress on High Speed Photography and Photonics, Shin-ichi Hyodo, Ed. (Japan Society of Precision Engineering, Tokyo, 1978), p. 590.

Mourou, G.

Penzkofer, A.

A. Penzkofer, D. von der Linde, A. Laubereau, W. Kaiser, Appl. Phys. Lett. 20, 351 (1972).
[Crossref]

Stone, T.

Tournois, P.

J. Desbois, F. Gires, P. Tournois, IEEE J. Quantum Electron. QE-9, 213 (1973).
[Crossref]

Treacy, E. B.

E. B. Treacy, Phys. Lett. A. 28, 34 (1968).
[Crossref]

Vampouille, M.

B. Colombeau, M. Vampouille, C. Froehly, Opt. Commun. 19, 201 (1976).
[Crossref]

Vienot, J. C.

C. Froehly, A. Lacourt, J. C. Vienot, Nouv. Rev. Opt. 4, 183 (1973).
[Crossref]

von der Linde, D.

A. Penzkofer, D. von der Linde, A. Laubereau, W. Kaiser, Appl. Phys. Lett. 20, 351 (1972).
[Crossref]

Appl. Opt. (2)

Appl. Phys. Lett. (2)

A. Penzkofer, D. von der Linde, A. Laubereau, W. Kaiser, Appl. Phys. Lett. 20, 351 (1972).
[Crossref]

R. A. Fisher, W. Bischel, Appl. Phys. Lett. 23, 661 (1973).
[Crossref]

IEEE J. Quantum Electron. (1)

J. Desbois, F. Gires, P. Tournois, IEEE J. Quantum Electron. QE-9, 213 (1973).
[Crossref]

Nouv. Rev. Opt. (1)

C. Froehly, A. Lacourt, J. C. Vienot, Nouv. Rev. Opt. 4, 183 (1973).
[Crossref]

Opt. Commun. (1)

B. Colombeau, M. Vampouille, C. Froehly, Opt. Commun. 19, 201 (1976).
[Crossref]

Phys. Lett. A. (1)

E. B. Treacy, Phys. Lett. A. 28, 34 (1968).
[Crossref]

Sov. Phys. Tech. Phys. Lett. (1)

V. I. Kryzhanovski et al., Sov. Phys. Tech. Phys. Lett. 3, 13 (1977).

Other (1)

C. Cavailler, C. Delmare, N. Fleurot, J. Y. Le Gall, in Proceedings, Thirteenth International Congress on High Speed Photography and Photonics, Shin-ichi Hyodo, Ed. (Japan Society of Precision Engineering, Tokyo, 1978), p. 590.

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Figures (7)

Fig. 1
Fig. 1

Pupil scheme.

Fig. 2
Fig. 2

Concave holographic grating: O1 and O2 are harmonic conjuguates with regard to P1P2; OS = R (radius of curvature of grating); L1 = O1S; L2 = O2S.

Fig. 3
Fig. 3

Experimental setup: CP, Pockels cell; A, amplifier; R, grating; M, mirrors; L1 and L2, lenses.

Fig. 4
Fig. 4

Spatial and temporal evolution of the beam: (a) slit fully opened; (b) slit closed to 50 μm.

Fig. 5
Fig. 5

Spectral fluctuation of the incident pulse.

Fig. 6
Fig. 6

Schematic diagram of the contrast ratio measurement: 1, incident power beam; 2, beam splitter (R = 0.96); 3, mirror; 4, attenuator; 5 and 6, afocal system; 7, Mylar sheet; 8, XA 1003 detector.

Fig. 7
Fig. 7

Pulse shaper output shapes: (a) three levels; (b) linear; (c) exponential.

Equations (7)

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h ( u , t ) = K u · d d t F ( u x c ) ,
F ( u x c ) = y min y max f ( u x c , y ) d y .
h ( u , t ) = K u · d d t [ p ( t ) · r ( t ) ] .
s ( t ) 2 Π j ν 0 p ( t ) · exp ( 2 Π j ν 0 t ) e ( t ) .
R = 1 m , A B length = 15 cm , L 1 = 1073 · 54 mm ; α 1 = 20 · 2261 ° , L 2 = 2891 · 90 mm ; α 2 = 68 · 6406 ° , N = 1200 mm 1 .
ρ theor = T · ξ N · f
f = a + a a + a exp [ ( x 2 + y 2 ) / 2 ] d x d y + + exp [ ( x 2 + y 2 ) / 2 ] d x d y

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