Abstract

By operating a Nd:YAG regenerative amplifier with an intracavity spatial aperture, it is found that spectral broadening and chirp sufficient for pulse compression are produced at intracavity intensities well below the self-focusing threshold. Stable, synchronous pulse compression of as much as a factor of 4 has been achieved, while a factor of 8 is possible.

© 1992 Optical Society of America

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References

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    [CrossRef]

1989

L. Yan, P. T. Ho, C. H. Lee, G. L. Burdge, IEEE J. Quantum Electron. 25, 2431 (1989).
[CrossRef]

1988

1987

1986

1985

1981

J. E. Murray, IEEE J. Quantum Electron. QE-17, 1713 (1981).
[CrossRef]

1975

M. J. Moran, C. Y. She, R. L. Carman, IEEE J. Quantum Electron. QE-11, 259 (1975).
[CrossRef]

Bado, P.

Bouvier, M.

Burdge, G. L.

L. Yan, P. T. Ho, C. H. Lee, G. L. Burdge, IEEE J. Quantum Electron. 25, 2431 (1989).
[CrossRef]

Carman, R. L.

M. J. Moran, C. Y. She, R. L. Carman, IEEE J. Quantum Electron. QE-11, 259 (1975).
[CrossRef]

Coe, J. S.

Corkum, P. B.

Gobbi, P. G.

Goldberg, L. S.

Ho, P. T.

L. Yan, P. T. Ho, C. H. Lee, G. L. Burdge, IEEE J. Quantum Electron. 25, 2431 (1989).
[CrossRef]

Lee, C. H.

L. Yan, P. T. Ho, C. H. Lee, G. L. Burdge, IEEE J. Quantum Electron. 25, 2431 (1989).
[CrossRef]

Moran, M. J.

M. J. Moran, C. Y. She, R. L. Carman, IEEE J. Quantum Electron. QE-11, 259 (1975).
[CrossRef]

Morosi, S.

Murray, J. E.

J. E. Murray, IEEE J. Quantum Electron. QE-17, 1713 (1981).
[CrossRef]

Reali, G. C.

Rolland, C.

She, C. Y.

M. J. Moran, C. Y. She, R. L. Carman, IEEE J. Quantum Electron. QE-11, 259 (1975).
[CrossRef]

Siegman, A. E.

A. E. Siegman, Lasers (University Science Books, Mill Valley, Calif., 1986).

Voss, D. F.

Yan, L.

L. Yan, P. T. Ho, C. H. Lee, G. L. Burdge, IEEE J. Quantum Electron. 25, 2431 (1989).
[CrossRef]

Zarkasi, A. S.

Appl. Opt.

IEEE J. Quantum Electron.

M. J. Moran, C. Y. She, R. L. Carman, IEEE J. Quantum Electron. QE-11, 259 (1975).
[CrossRef]

L. Yan, P. T. Ho, C. H. Lee, G. L. Burdge, IEEE J. Quantum Electron. 25, 2431 (1989).
[CrossRef]

J. E. Murray, IEEE J. Quantum Electron. QE-17, 1713 (1981).
[CrossRef]

J. Opt. Soc. Am. B

Opt. Lett.

Other

S. L. Shapiro, ed., Ultrashort Light Pulses: Picosecond Techniques and Applications (Springer-Verlag, Berlin, 1977).

A. E. Siegman, Lasers (University Science Books, Mill Valley, Calif., 1986).

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Figures (5)

Fig. 1
Fig. 1

Regenerative amplifier system. The power amplifier was not used in the measurements of this Letter.

Fig. 2
Fig. 2

Streak-camera trace (for 0.532 μm) and corresponding spectrum (at 1.06 μm) for pulse switchout at one round trip before the energy peak [(a), (b)] and for switchout three round trips past the peak [(c), (d)]. The solid curve through the streak data is a least-squares fit to a Gaussian. The numbers in parentheses are estimates of the pulse width at 1.06 μm using 2 as the conversion factor.

Fig. 3
Fig. 3

Calculated pulse width, energy, and B integral for RGA operation with the parameters G0 = 5.35, α = 0.14, and W = 0.16 cm. The overlaid points are measured energies and pulse widths for the same parameters.

Fig. 4
Fig. 4

Calculated estimate of degree of self-focusing for G0 = 5.35 and for various α’s. The dots denote successive round trips. The safe region of operation is Lcrit/Lsf < 1. Also indicated are the maximum and 0.4 maximum energy points.

Fig. 5
Fig. 5

Measured pulse duration and energy output for the RGA operated with an intracavity cell of CS2 (0.163 cm thick).

Equations (1)

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1 I I z = 2 π n 0 λ 0 χ ( Δ ν ) , ϕ z = π n 0 λ 0 χ ( Δ ν ) + 2 π λ 0 n 2 I ,

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