Abstract

For the first time to our knowledge, in a high-energy laser facility with an output energy of 454.37 J, by using a temporal–space-transforming pulse-shaping system with our own design of a knife-edge apparatus, we obtained a quasi-square laser pulse.

© 2005 Optical Society of America

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References

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  1. D. R. Speck, E. S. Bliss, J. A. Glaze, “The SHIVA laser fusion facility,” IEEE J. Quantum Electron. QE-17, 1599–1619 (1981).
    [CrossRef]
  2. A. Okishev, M. D. Skeldon, S. A. Letzring, W. R. Donaldson, A. Babushkin, W. D. Seka, “Pulse-shaping system for the 60-beam, 30 kJ (UV) OMEGA laser,” in Laser Optics ’95 and ICONO ’95: Superintense Laser Fields,A. A. Andreev, V. M. Gordienko, eds., Proc. SPIE2770, 10–17 (1996).
  3. M. D. Skeldon, “The design of optical pulse shapes with an aperture coupled strip-line pulse-shaping system,” LLE Rev. 78, 97–104 (1999).
  4. S. C. Burkhart, F. A. Penko, “Temporary pulse shaping of fiber-optics laser beams,” (Lawrence Livermore National Laboratory, 1996).
  5. R. B. Wilcox, W. Behrendt, D. F. Browing, D. R. Speck, B. M. Van Wonterghem, “Fusion laser oscillator and pulse forming system using integrated optics,” in Laser Coherence Control: Technology and Applications,H. T. Powell, T. J. Kessler, eds., Proc. SPIE1870, 53–63 (1993).
  6. B. M. Van Wonterghem, J. R. Murray, J. H. Campbell, D. R. Speck, C. E. Barker, I. C. Smith, D. F. Browning, W. C. Behrendt, “System description and initial performance results for Beamlet,” Lawrence Livermore National Laboratory ICF Annual Rep. UCRL-105821–95-1 (Lawrence Livermore National Laboratory, 1994), pp. 1–17, http://www.llnl.gov/nif/icf/icfpubs/qrtly_reports/oct-dec94/VanWon1.pdf .

1999 (1)

M. D. Skeldon, “The design of optical pulse shapes with an aperture coupled strip-line pulse-shaping system,” LLE Rev. 78, 97–104 (1999).

1981 (1)

D. R. Speck, E. S. Bliss, J. A. Glaze, “The SHIVA laser fusion facility,” IEEE J. Quantum Electron. QE-17, 1599–1619 (1981).
[CrossRef]

Babushkin, A.

A. Okishev, M. D. Skeldon, S. A. Letzring, W. R. Donaldson, A. Babushkin, W. D. Seka, “Pulse-shaping system for the 60-beam, 30 kJ (UV) OMEGA laser,” in Laser Optics ’95 and ICONO ’95: Superintense Laser Fields,A. A. Andreev, V. M. Gordienko, eds., Proc. SPIE2770, 10–17 (1996).

Behrendt, W.

R. B. Wilcox, W. Behrendt, D. F. Browing, D. R. Speck, B. M. Van Wonterghem, “Fusion laser oscillator and pulse forming system using integrated optics,” in Laser Coherence Control: Technology and Applications,H. T. Powell, T. J. Kessler, eds., Proc. SPIE1870, 53–63 (1993).

Bliss, E. S.

D. R. Speck, E. S. Bliss, J. A. Glaze, “The SHIVA laser fusion facility,” IEEE J. Quantum Electron. QE-17, 1599–1619 (1981).
[CrossRef]

Browing, D. F.

R. B. Wilcox, W. Behrendt, D. F. Browing, D. R. Speck, B. M. Van Wonterghem, “Fusion laser oscillator and pulse forming system using integrated optics,” in Laser Coherence Control: Technology and Applications,H. T. Powell, T. J. Kessler, eds., Proc. SPIE1870, 53–63 (1993).

Burkhart, S. C.

S. C. Burkhart, F. A. Penko, “Temporary pulse shaping of fiber-optics laser beams,” (Lawrence Livermore National Laboratory, 1996).

Donaldson, W. R.

A. Okishev, M. D. Skeldon, S. A. Letzring, W. R. Donaldson, A. Babushkin, W. D. Seka, “Pulse-shaping system for the 60-beam, 30 kJ (UV) OMEGA laser,” in Laser Optics ’95 and ICONO ’95: Superintense Laser Fields,A. A. Andreev, V. M. Gordienko, eds., Proc. SPIE2770, 10–17 (1996).

Glaze, J. A.

D. R. Speck, E. S. Bliss, J. A. Glaze, “The SHIVA laser fusion facility,” IEEE J. Quantum Electron. QE-17, 1599–1619 (1981).
[CrossRef]

Letzring, S. A.

A. Okishev, M. D. Skeldon, S. A. Letzring, W. R. Donaldson, A. Babushkin, W. D. Seka, “Pulse-shaping system for the 60-beam, 30 kJ (UV) OMEGA laser,” in Laser Optics ’95 and ICONO ’95: Superintense Laser Fields,A. A. Andreev, V. M. Gordienko, eds., Proc. SPIE2770, 10–17 (1996).

Okishev, A.

A. Okishev, M. D. Skeldon, S. A. Letzring, W. R. Donaldson, A. Babushkin, W. D. Seka, “Pulse-shaping system for the 60-beam, 30 kJ (UV) OMEGA laser,” in Laser Optics ’95 and ICONO ’95: Superintense Laser Fields,A. A. Andreev, V. M. Gordienko, eds., Proc. SPIE2770, 10–17 (1996).

Penko, F. A.

S. C. Burkhart, F. A. Penko, “Temporary pulse shaping of fiber-optics laser beams,” (Lawrence Livermore National Laboratory, 1996).

Seka, W. D.

A. Okishev, M. D. Skeldon, S. A. Letzring, W. R. Donaldson, A. Babushkin, W. D. Seka, “Pulse-shaping system for the 60-beam, 30 kJ (UV) OMEGA laser,” in Laser Optics ’95 and ICONO ’95: Superintense Laser Fields,A. A. Andreev, V. M. Gordienko, eds., Proc. SPIE2770, 10–17 (1996).

Skeldon, M. D.

M. D. Skeldon, “The design of optical pulse shapes with an aperture coupled strip-line pulse-shaping system,” LLE Rev. 78, 97–104 (1999).

A. Okishev, M. D. Skeldon, S. A. Letzring, W. R. Donaldson, A. Babushkin, W. D. Seka, “Pulse-shaping system for the 60-beam, 30 kJ (UV) OMEGA laser,” in Laser Optics ’95 and ICONO ’95: Superintense Laser Fields,A. A. Andreev, V. M. Gordienko, eds., Proc. SPIE2770, 10–17 (1996).

Speck, D. R.

D. R. Speck, E. S. Bliss, J. A. Glaze, “The SHIVA laser fusion facility,” IEEE J. Quantum Electron. QE-17, 1599–1619 (1981).
[CrossRef]

R. B. Wilcox, W. Behrendt, D. F. Browing, D. R. Speck, B. M. Van Wonterghem, “Fusion laser oscillator and pulse forming system using integrated optics,” in Laser Coherence Control: Technology and Applications,H. T. Powell, T. J. Kessler, eds., Proc. SPIE1870, 53–63 (1993).

Van Wonterghem, B. M.

R. B. Wilcox, W. Behrendt, D. F. Browing, D. R. Speck, B. M. Van Wonterghem, “Fusion laser oscillator and pulse forming system using integrated optics,” in Laser Coherence Control: Technology and Applications,H. T. Powell, T. J. Kessler, eds., Proc. SPIE1870, 53–63 (1993).

Wilcox, R. B.

R. B. Wilcox, W. Behrendt, D. F. Browing, D. R. Speck, B. M. Van Wonterghem, “Fusion laser oscillator and pulse forming system using integrated optics,” in Laser Coherence Control: Technology and Applications,H. T. Powell, T. J. Kessler, eds., Proc. SPIE1870, 53–63 (1993).

IEEE J. Quantum Electron. (1)

D. R. Speck, E. S. Bliss, J. A. Glaze, “The SHIVA laser fusion facility,” IEEE J. Quantum Electron. QE-17, 1599–1619 (1981).
[CrossRef]

LLE Rev. (1)

M. D. Skeldon, “The design of optical pulse shapes with an aperture coupled strip-line pulse-shaping system,” LLE Rev. 78, 97–104 (1999).

Other (4)

S. C. Burkhart, F. A. Penko, “Temporary pulse shaping of fiber-optics laser beams,” (Lawrence Livermore National Laboratory, 1996).

R. B. Wilcox, W. Behrendt, D. F. Browing, D. R. Speck, B. M. Van Wonterghem, “Fusion laser oscillator and pulse forming system using integrated optics,” in Laser Coherence Control: Technology and Applications,H. T. Powell, T. J. Kessler, eds., Proc. SPIE1870, 53–63 (1993).

B. M. Van Wonterghem, J. R. Murray, J. H. Campbell, D. R. Speck, C. E. Barker, I. C. Smith, D. F. Browning, W. C. Behrendt, “System description and initial performance results for Beamlet,” Lawrence Livermore National Laboratory ICF Annual Rep. UCRL-105821–95-1 (Lawrence Livermore National Laboratory, 1994), pp. 1–17, http://www.llnl.gov/nif/icf/icfpubs/qrtly_reports/oct-dec94/VanWon1.pdf .

A. Okishev, M. D. Skeldon, S. A. Letzring, W. R. Donaldson, A. Babushkin, W. D. Seka, “Pulse-shaping system for the 60-beam, 30 kJ (UV) OMEGA laser,” in Laser Optics ’95 and ICONO ’95: Superintense Laser Fields,A. A. Andreev, V. M. Gordienko, eds., Proc. SPIE2770, 10–17 (1996).

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Figures (5)

Fig. 1
Fig. 1

Temporal–space-transform pulse-shaping system containing the knife-edge apparatus: OSC, oscillator; BS, beam splitter; RM1, RM2, reflecting mirrors; H. V., high voltage; PIN, p-i-n detector; BE, beam space filter; other abbreviations defined in text.

Fig. 2
Fig. 2

Power in the rear of the aperture when we assume a special value of T(y).

Fig. 3
Fig. 3

(a) Schematic of the knife-edge apparatus and (b) a photo of the knife-edge apparatus. In (a), (1) and (2) are two rotation knives and (3) is a vertical knife.

Fig. 4
Fig. 4

Temporal waveform of the front end of a pulse formed by the AP measured with a Tektronix TDS694C digital storage oscilloscope. Each grid of the abscissa is 500 ps. The pulse width is 881.5 ps, the rise time is 845.4 ps, and the fall time is 408.7 ps.

Fig. 5
Fig. 5

Temporal waveform of the terminal laser pulse with an output energy of 454.35 J measured with a Tektronix TDS694C instrument. Each grid of the abscissa is 500 ps. The pulse width is 1.16 ns, the rise time is 337 ps, and the fall time is 360 ps.

Equations (9)

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E 0 ( x ,     y ,     t ) = f 0 ( x ,     y ) g ( t ) .
E 1 ( x ,     y ,     t ) = g ( t ) F { f 0 ( x ,     y ) } = g ( t ) f 1 ( x ,     y ) .
F { f 0 ( x ,     y ) } = f 0 ( x ,     y ) exp [ - 2 π i ( x λ f x + y λ f y ) ] d x d y = f 1 ( x ,     y ) .
I 1 ( x ,     y ,     t ) = E 1 ( x ,     y ,     t ) 2 = G ( t ) I 1 ( x ,     y ) ,
G ( t ) = g ( t ) 2 ,             I 1 ( x ,     y ) = f 1 ( x ,     y ) 2 .
I 2 ( t ) = G ( t ) T ( y ) I 1 ( x ,     y - ν t ) d x d y = AG ( t ) F - 1 { [ F { T ( η ) } ] × [ F { I 1 y ( η ) } ] } .
P 2 ( t ) = I 2 ( x ,     y ,     t ) d x d y = AG ( t ) [ T ( η ) * I 1 y ( η ) ] η = ν t = AG ( t ) F - 1 { [ F { T ( η ) } ] × [ F { I 1 y ( η ) } ] } ,
f 0 ( x ,     y ) = exp ( - x 2 + y 2 w 2 ) , G ( t ) = exp [ - 2 ( t Δ t 0 ) 2 ] .
T ( y ) = { exp ( y - 2.5 1.66 ) - 2.5 mm y 2.5 mm 0 y > 2.5 mm ,     y < - 2.5 mm .

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