Abstract

The performance of a high-power excimer laser, generalized self-filtering, unstable resonator has been modeled by means of a numerical code. The spectral method and the Rigrod equations are basic to the numerical procedure, which is quite general because it results from an appropriate combination of independent propagation algorithms. The code can be applied to arbitrary resonator geometry and can be used to take account of gain medium inhomogeneities and instability phenomena.

© 1997 Optical Society of America

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References

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  1. P. C. Gobbi, S. Morosi, G. C. Reali, A. S. Zarkasi, “Novel unstable resonator configuration with a self-filtering aperture: experimental characterization of the Nd:YAG loaded cavity,” Appl. Opt. 24, 26–33 (1985).
    [CrossRef] [PubMed]
  2. R. Barbini, A. Ghigo, M. Giorgi, K. N. Iyer, A. Palucci, S. Ribezzo, “Injection locked single mode high power low divergence TEA CO laser using SFUR configuration,” Opt. Commun. 60, 239–243 (1986).
    [CrossRef]
  3. V. Boffa, P. Di Lazzaro, G. P. Gallerano, G. Giordano, T. Hermsen, T. Letardi, C. E. Zheng, “Self-filtering unstable resonator operation of XeCl laser,” IEEE J. Quantum Electron. QE-23, 1241–1244 (1987).
    [CrossRef]
  4. A. Luches, V. Nassisi, M. R. Perrone, “Experimental characterization of a self-filtering unstable resonator applied to a short-pulse XeCl laser,” Appl. Opt. 28, 2047–2051 (1989).
    [CrossRef] [PubMed]
  5. P. G. Gobbi, G. C. Reali, “A novel unstable resonator configuration with a self filtering aperture,” Opt. Commun. 52, 195–198 (1984).
    [CrossRef]
  6. P. G. Gobbi, G. C. Reali, “Numerical study of a self-filtering unstable resonator,” in Refereed Proceedings of the Southwestern Conference on Optics, S. C. Stotlar, R. S. McDowell, eds., Proc. SPIE540, 119–123 (1985).
  7. P. Di Lazzaro, T. Hermsen, T. Letardi, C. E. Zheng, “Self-filtering unstable resonator: an approximate analytical model with comparison to computed and XeCl laser experimental results,” Opt. Commun. 61, 393–396 (1987).
    [CrossRef]
  8. H. Fang, M. R. Perrone, “Numerical modeling of short-pulse excimer lasers with negative branch unstable cavities,” Appl. Opt. 34, 2659–2664 (1995).
    [CrossRef] [PubMed]
  9. A. Bianchi, A. Ferrario, P. G. Gobbi, C. Malvicini, G. C. Reali, “Characterization of a modified SFUR Nd:YAG oscillator in various pulsed regimes,” in 1986 European Conference on Optics, Optical Systems and Applications, S. Sotini, S. Trigari, eds., Proc. SPIE701, 132–135 (1986).
    [CrossRef]
  10. P. Di Lazzaro, T. Hermsen, C. E. Zheng, “A generalization of the self-filtering unstable resonator,” IEEE J. Quantum Electron. QE-24, 1543–1547 (1988).
    [CrossRef]
  11. J. W. Chen, V. Nassisi, M. R. Perrone, “High brightness operation of a XeCl laser with negative branch unstable resonators,” Opt. Quantum Electron. 23, 35–44 (1991).
    [CrossRef]
  12. C. Petrucci, “Caratterizzazione sperimentale e numerica di un laser a XeCl operante con un risonatore instabile autofiltrante generalizzato,” thesis in Physics (University La Sapienza, Rome, Italy, 1993–94).
  13. S. Bollanti, P. Di Lazzaro, F. Flora, G. Giordano, T. Letardi, C. Petrucci, G. Schina, C. E. Zheng, “Compact three electrodes excimer laser ianus for a POPA optical system,” in High-Power Gas and Solid State Lasers, D. Schuoecker, T. Letardi, M. Bohrer, H. Weber, eds., Proc. SPIE2206, 144–153 (1994).
    [CrossRef]
  14. S. Bollanti, P. Di Lazzaro, F. Flora, T. Letardi, D. Murra, C. Petrucci, O. Uteza, “Study of a compact three-electrode oscillator–amplifier excimer laser system,” Opt. Commun. 132, 565–573 (1996).
    [CrossRef]
  15. E. A. Sziklas, A. E. Siegman, “Mode calculations in unstable resonators with flowing saturable gain. 2: Fast Fourier transform method,” Appl. Opt. 14, 1874–1889 (1975).
    [CrossRef] [PubMed]
  16. W. W. Rigrod, “Homogeneously broadened CW lasers with uniform distributed loss,” IEEE J. Quantum Electron. QE-14, 377–381 (1978).
    [CrossRef]
  17. M. Born, E. Wolf, Principles of Optics (Pergamon, London, 1980).
  18. F. Flora, M. Portaccio, A. Torre, “Diffraction numerical simulation of a high-power excimer laser performance,” in 9th International Symposium on Gas Flow and Chemical Lasers, C. Fotakis, C. Kalpouzos, T. G. Papazoglou, eds., Proc. SPIE1810, 422–425 (1992).
    [CrossRef]
  19. A. E. Siegman, “Performance limitations of the self-filtering unstable resonator,” Opt. Commun. 88, 295–297 (1992).
    [CrossRef]

1996 (1)

S. Bollanti, P. Di Lazzaro, F. Flora, T. Letardi, D. Murra, C. Petrucci, O. Uteza, “Study of a compact three-electrode oscillator–amplifier excimer laser system,” Opt. Commun. 132, 565–573 (1996).
[CrossRef]

1995 (1)

1992 (1)

A. E. Siegman, “Performance limitations of the self-filtering unstable resonator,” Opt. Commun. 88, 295–297 (1992).
[CrossRef]

1991 (1)

J. W. Chen, V. Nassisi, M. R. Perrone, “High brightness operation of a XeCl laser with negative branch unstable resonators,” Opt. Quantum Electron. 23, 35–44 (1991).
[CrossRef]

1989 (1)

1988 (1)

P. Di Lazzaro, T. Hermsen, C. E. Zheng, “A generalization of the self-filtering unstable resonator,” IEEE J. Quantum Electron. QE-24, 1543–1547 (1988).
[CrossRef]

1987 (2)

V. Boffa, P. Di Lazzaro, G. P. Gallerano, G. Giordano, T. Hermsen, T. Letardi, C. E. Zheng, “Self-filtering unstable resonator operation of XeCl laser,” IEEE J. Quantum Electron. QE-23, 1241–1244 (1987).
[CrossRef]

P. Di Lazzaro, T. Hermsen, T. Letardi, C. E. Zheng, “Self-filtering unstable resonator: an approximate analytical model with comparison to computed and XeCl laser experimental results,” Opt. Commun. 61, 393–396 (1987).
[CrossRef]

1986 (1)

R. Barbini, A. Ghigo, M. Giorgi, K. N. Iyer, A. Palucci, S. Ribezzo, “Injection locked single mode high power low divergence TEA CO laser using SFUR configuration,” Opt. Commun. 60, 239–243 (1986).
[CrossRef]

1985 (1)

1984 (1)

P. G. Gobbi, G. C. Reali, “A novel unstable resonator configuration with a self filtering aperture,” Opt. Commun. 52, 195–198 (1984).
[CrossRef]

1978 (1)

W. W. Rigrod, “Homogeneously broadened CW lasers with uniform distributed loss,” IEEE J. Quantum Electron. QE-14, 377–381 (1978).
[CrossRef]

1975 (1)

Barbini, R.

R. Barbini, A. Ghigo, M. Giorgi, K. N. Iyer, A. Palucci, S. Ribezzo, “Injection locked single mode high power low divergence TEA CO laser using SFUR configuration,” Opt. Commun. 60, 239–243 (1986).
[CrossRef]

Bianchi, A.

A. Bianchi, A. Ferrario, P. G. Gobbi, C. Malvicini, G. C. Reali, “Characterization of a modified SFUR Nd:YAG oscillator in various pulsed regimes,” in 1986 European Conference on Optics, Optical Systems and Applications, S. Sotini, S. Trigari, eds., Proc. SPIE701, 132–135 (1986).
[CrossRef]

Boffa, V.

V. Boffa, P. Di Lazzaro, G. P. Gallerano, G. Giordano, T. Hermsen, T. Letardi, C. E. Zheng, “Self-filtering unstable resonator operation of XeCl laser,” IEEE J. Quantum Electron. QE-23, 1241–1244 (1987).
[CrossRef]

Bollanti, S.

S. Bollanti, P. Di Lazzaro, F. Flora, T. Letardi, D. Murra, C. Petrucci, O. Uteza, “Study of a compact three-electrode oscillator–amplifier excimer laser system,” Opt. Commun. 132, 565–573 (1996).
[CrossRef]

S. Bollanti, P. Di Lazzaro, F. Flora, G. Giordano, T. Letardi, C. Petrucci, G. Schina, C. E. Zheng, “Compact three electrodes excimer laser ianus for a POPA optical system,” in High-Power Gas and Solid State Lasers, D. Schuoecker, T. Letardi, M. Bohrer, H. Weber, eds., Proc. SPIE2206, 144–153 (1994).
[CrossRef]

Born, M.

M. Born, E. Wolf, Principles of Optics (Pergamon, London, 1980).

Chen, J. W.

J. W. Chen, V. Nassisi, M. R. Perrone, “High brightness operation of a XeCl laser with negative branch unstable resonators,” Opt. Quantum Electron. 23, 35–44 (1991).
[CrossRef]

Di Lazzaro, P.

S. Bollanti, P. Di Lazzaro, F. Flora, T. Letardi, D. Murra, C. Petrucci, O. Uteza, “Study of a compact three-electrode oscillator–amplifier excimer laser system,” Opt. Commun. 132, 565–573 (1996).
[CrossRef]

P. Di Lazzaro, T. Hermsen, C. E. Zheng, “A generalization of the self-filtering unstable resonator,” IEEE J. Quantum Electron. QE-24, 1543–1547 (1988).
[CrossRef]

V. Boffa, P. Di Lazzaro, G. P. Gallerano, G. Giordano, T. Hermsen, T. Letardi, C. E. Zheng, “Self-filtering unstable resonator operation of XeCl laser,” IEEE J. Quantum Electron. QE-23, 1241–1244 (1987).
[CrossRef]

P. Di Lazzaro, T. Hermsen, T. Letardi, C. E. Zheng, “Self-filtering unstable resonator: an approximate analytical model with comparison to computed and XeCl laser experimental results,” Opt. Commun. 61, 393–396 (1987).
[CrossRef]

S. Bollanti, P. Di Lazzaro, F. Flora, G. Giordano, T. Letardi, C. Petrucci, G. Schina, C. E. Zheng, “Compact three electrodes excimer laser ianus for a POPA optical system,” in High-Power Gas and Solid State Lasers, D. Schuoecker, T. Letardi, M. Bohrer, H. Weber, eds., Proc. SPIE2206, 144–153 (1994).
[CrossRef]

Fang, H.

Ferrario, A.

A. Bianchi, A. Ferrario, P. G. Gobbi, C. Malvicini, G. C. Reali, “Characterization of a modified SFUR Nd:YAG oscillator in various pulsed regimes,” in 1986 European Conference on Optics, Optical Systems and Applications, S. Sotini, S. Trigari, eds., Proc. SPIE701, 132–135 (1986).
[CrossRef]

Flora, F.

S. Bollanti, P. Di Lazzaro, F. Flora, T. Letardi, D. Murra, C. Petrucci, O. Uteza, “Study of a compact three-electrode oscillator–amplifier excimer laser system,” Opt. Commun. 132, 565–573 (1996).
[CrossRef]

F. Flora, M. Portaccio, A. Torre, “Diffraction numerical simulation of a high-power excimer laser performance,” in 9th International Symposium on Gas Flow and Chemical Lasers, C. Fotakis, C. Kalpouzos, T. G. Papazoglou, eds., Proc. SPIE1810, 422–425 (1992).
[CrossRef]

S. Bollanti, P. Di Lazzaro, F. Flora, G. Giordano, T. Letardi, C. Petrucci, G. Schina, C. E. Zheng, “Compact three electrodes excimer laser ianus for a POPA optical system,” in High-Power Gas and Solid State Lasers, D. Schuoecker, T. Letardi, M. Bohrer, H. Weber, eds., Proc. SPIE2206, 144–153 (1994).
[CrossRef]

Gallerano, G. P.

V. Boffa, P. Di Lazzaro, G. P. Gallerano, G. Giordano, T. Hermsen, T. Letardi, C. E. Zheng, “Self-filtering unstable resonator operation of XeCl laser,” IEEE J. Quantum Electron. QE-23, 1241–1244 (1987).
[CrossRef]

Ghigo, A.

R. Barbini, A. Ghigo, M. Giorgi, K. N. Iyer, A. Palucci, S. Ribezzo, “Injection locked single mode high power low divergence TEA CO laser using SFUR configuration,” Opt. Commun. 60, 239–243 (1986).
[CrossRef]

Giordano, G.

V. Boffa, P. Di Lazzaro, G. P. Gallerano, G. Giordano, T. Hermsen, T. Letardi, C. E. Zheng, “Self-filtering unstable resonator operation of XeCl laser,” IEEE J. Quantum Electron. QE-23, 1241–1244 (1987).
[CrossRef]

S. Bollanti, P. Di Lazzaro, F. Flora, G. Giordano, T. Letardi, C. Petrucci, G. Schina, C. E. Zheng, “Compact three electrodes excimer laser ianus for a POPA optical system,” in High-Power Gas and Solid State Lasers, D. Schuoecker, T. Letardi, M. Bohrer, H. Weber, eds., Proc. SPIE2206, 144–153 (1994).
[CrossRef]

Giorgi, M.

R. Barbini, A. Ghigo, M. Giorgi, K. N. Iyer, A. Palucci, S. Ribezzo, “Injection locked single mode high power low divergence TEA CO laser using SFUR configuration,” Opt. Commun. 60, 239–243 (1986).
[CrossRef]

Gobbi, P. C.

Gobbi, P. G.

P. G. Gobbi, G. C. Reali, “A novel unstable resonator configuration with a self filtering aperture,” Opt. Commun. 52, 195–198 (1984).
[CrossRef]

A. Bianchi, A. Ferrario, P. G. Gobbi, C. Malvicini, G. C. Reali, “Characterization of a modified SFUR Nd:YAG oscillator in various pulsed regimes,” in 1986 European Conference on Optics, Optical Systems and Applications, S. Sotini, S. Trigari, eds., Proc. SPIE701, 132–135 (1986).
[CrossRef]

P. G. Gobbi, G. C. Reali, “Numerical study of a self-filtering unstable resonator,” in Refereed Proceedings of the Southwestern Conference on Optics, S. C. Stotlar, R. S. McDowell, eds., Proc. SPIE540, 119–123 (1985).

Hermsen, T.

P. Di Lazzaro, T. Hermsen, C. E. Zheng, “A generalization of the self-filtering unstable resonator,” IEEE J. Quantum Electron. QE-24, 1543–1547 (1988).
[CrossRef]

P. Di Lazzaro, T. Hermsen, T. Letardi, C. E. Zheng, “Self-filtering unstable resonator: an approximate analytical model with comparison to computed and XeCl laser experimental results,” Opt. Commun. 61, 393–396 (1987).
[CrossRef]

V. Boffa, P. Di Lazzaro, G. P. Gallerano, G. Giordano, T. Hermsen, T. Letardi, C. E. Zheng, “Self-filtering unstable resonator operation of XeCl laser,” IEEE J. Quantum Electron. QE-23, 1241–1244 (1987).
[CrossRef]

Iyer, K. N.

R. Barbini, A. Ghigo, M. Giorgi, K. N. Iyer, A. Palucci, S. Ribezzo, “Injection locked single mode high power low divergence TEA CO laser using SFUR configuration,” Opt. Commun. 60, 239–243 (1986).
[CrossRef]

Letardi, T.

S. Bollanti, P. Di Lazzaro, F. Flora, T. Letardi, D. Murra, C. Petrucci, O. Uteza, “Study of a compact three-electrode oscillator–amplifier excimer laser system,” Opt. Commun. 132, 565–573 (1996).
[CrossRef]

V. Boffa, P. Di Lazzaro, G. P. Gallerano, G. Giordano, T. Hermsen, T. Letardi, C. E. Zheng, “Self-filtering unstable resonator operation of XeCl laser,” IEEE J. Quantum Electron. QE-23, 1241–1244 (1987).
[CrossRef]

P. Di Lazzaro, T. Hermsen, T. Letardi, C. E. Zheng, “Self-filtering unstable resonator: an approximate analytical model with comparison to computed and XeCl laser experimental results,” Opt. Commun. 61, 393–396 (1987).
[CrossRef]

S. Bollanti, P. Di Lazzaro, F. Flora, G. Giordano, T. Letardi, C. Petrucci, G. Schina, C. E. Zheng, “Compact three electrodes excimer laser ianus for a POPA optical system,” in High-Power Gas and Solid State Lasers, D. Schuoecker, T. Letardi, M. Bohrer, H. Weber, eds., Proc. SPIE2206, 144–153 (1994).
[CrossRef]

Luches, A.

Malvicini, C.

A. Bianchi, A. Ferrario, P. G. Gobbi, C. Malvicini, G. C. Reali, “Characterization of a modified SFUR Nd:YAG oscillator in various pulsed regimes,” in 1986 European Conference on Optics, Optical Systems and Applications, S. Sotini, S. Trigari, eds., Proc. SPIE701, 132–135 (1986).
[CrossRef]

Morosi, S.

Murra, D.

S. Bollanti, P. Di Lazzaro, F. Flora, T. Letardi, D. Murra, C. Petrucci, O. Uteza, “Study of a compact three-electrode oscillator–amplifier excimer laser system,” Opt. Commun. 132, 565–573 (1996).
[CrossRef]

Nassisi, V.

J. W. Chen, V. Nassisi, M. R. Perrone, “High brightness operation of a XeCl laser with negative branch unstable resonators,” Opt. Quantum Electron. 23, 35–44 (1991).
[CrossRef]

A. Luches, V. Nassisi, M. R. Perrone, “Experimental characterization of a self-filtering unstable resonator applied to a short-pulse XeCl laser,” Appl. Opt. 28, 2047–2051 (1989).
[CrossRef] [PubMed]

Palucci, A.

R. Barbini, A. Ghigo, M. Giorgi, K. N. Iyer, A. Palucci, S. Ribezzo, “Injection locked single mode high power low divergence TEA CO laser using SFUR configuration,” Opt. Commun. 60, 239–243 (1986).
[CrossRef]

Perrone, M. R.

Petrucci, C.

S. Bollanti, P. Di Lazzaro, F. Flora, T. Letardi, D. Murra, C. Petrucci, O. Uteza, “Study of a compact three-electrode oscillator–amplifier excimer laser system,” Opt. Commun. 132, 565–573 (1996).
[CrossRef]

C. Petrucci, “Caratterizzazione sperimentale e numerica di un laser a XeCl operante con un risonatore instabile autofiltrante generalizzato,” thesis in Physics (University La Sapienza, Rome, Italy, 1993–94).

S. Bollanti, P. Di Lazzaro, F. Flora, G. Giordano, T. Letardi, C. Petrucci, G. Schina, C. E. Zheng, “Compact three electrodes excimer laser ianus for a POPA optical system,” in High-Power Gas and Solid State Lasers, D. Schuoecker, T. Letardi, M. Bohrer, H. Weber, eds., Proc. SPIE2206, 144–153 (1994).
[CrossRef]

Portaccio, M.

F. Flora, M. Portaccio, A. Torre, “Diffraction numerical simulation of a high-power excimer laser performance,” in 9th International Symposium on Gas Flow and Chemical Lasers, C. Fotakis, C. Kalpouzos, T. G. Papazoglou, eds., Proc. SPIE1810, 422–425 (1992).
[CrossRef]

Reali, G. C.

P. C. Gobbi, S. Morosi, G. C. Reali, A. S. Zarkasi, “Novel unstable resonator configuration with a self-filtering aperture: experimental characterization of the Nd:YAG loaded cavity,” Appl. Opt. 24, 26–33 (1985).
[CrossRef] [PubMed]

P. G. Gobbi, G. C. Reali, “A novel unstable resonator configuration with a self filtering aperture,” Opt. Commun. 52, 195–198 (1984).
[CrossRef]

A. Bianchi, A. Ferrario, P. G. Gobbi, C. Malvicini, G. C. Reali, “Characterization of a modified SFUR Nd:YAG oscillator in various pulsed regimes,” in 1986 European Conference on Optics, Optical Systems and Applications, S. Sotini, S. Trigari, eds., Proc. SPIE701, 132–135 (1986).
[CrossRef]

P. G. Gobbi, G. C. Reali, “Numerical study of a self-filtering unstable resonator,” in Refereed Proceedings of the Southwestern Conference on Optics, S. C. Stotlar, R. S. McDowell, eds., Proc. SPIE540, 119–123 (1985).

Ribezzo, S.

R. Barbini, A. Ghigo, M. Giorgi, K. N. Iyer, A. Palucci, S. Ribezzo, “Injection locked single mode high power low divergence TEA CO laser using SFUR configuration,” Opt. Commun. 60, 239–243 (1986).
[CrossRef]

Rigrod, W. W.

W. W. Rigrod, “Homogeneously broadened CW lasers with uniform distributed loss,” IEEE J. Quantum Electron. QE-14, 377–381 (1978).
[CrossRef]

Schina, G.

S. Bollanti, P. Di Lazzaro, F. Flora, G. Giordano, T. Letardi, C. Petrucci, G. Schina, C. E. Zheng, “Compact three electrodes excimer laser ianus for a POPA optical system,” in High-Power Gas and Solid State Lasers, D. Schuoecker, T. Letardi, M. Bohrer, H. Weber, eds., Proc. SPIE2206, 144–153 (1994).
[CrossRef]

Siegman, A. E.

Sziklas, E. A.

Torre, A.

F. Flora, M. Portaccio, A. Torre, “Diffraction numerical simulation of a high-power excimer laser performance,” in 9th International Symposium on Gas Flow and Chemical Lasers, C. Fotakis, C. Kalpouzos, T. G. Papazoglou, eds., Proc. SPIE1810, 422–425 (1992).
[CrossRef]

Uteza, O.

S. Bollanti, P. Di Lazzaro, F. Flora, T. Letardi, D. Murra, C. Petrucci, O. Uteza, “Study of a compact three-electrode oscillator–amplifier excimer laser system,” Opt. Commun. 132, 565–573 (1996).
[CrossRef]

Wolf, E.

M. Born, E. Wolf, Principles of Optics (Pergamon, London, 1980).

Zarkasi, A. S.

Zheng, C. E.

P. Di Lazzaro, T. Hermsen, C. E. Zheng, “A generalization of the self-filtering unstable resonator,” IEEE J. Quantum Electron. QE-24, 1543–1547 (1988).
[CrossRef]

V. Boffa, P. Di Lazzaro, G. P. Gallerano, G. Giordano, T. Hermsen, T. Letardi, C. E. Zheng, “Self-filtering unstable resonator operation of XeCl laser,” IEEE J. Quantum Electron. QE-23, 1241–1244 (1987).
[CrossRef]

P. Di Lazzaro, T. Hermsen, T. Letardi, C. E. Zheng, “Self-filtering unstable resonator: an approximate analytical model with comparison to computed and XeCl laser experimental results,” Opt. Commun. 61, 393–396 (1987).
[CrossRef]

S. Bollanti, P. Di Lazzaro, F. Flora, G. Giordano, T. Letardi, C. Petrucci, G. Schina, C. E. Zheng, “Compact three electrodes excimer laser ianus for a POPA optical system,” in High-Power Gas and Solid State Lasers, D. Schuoecker, T. Letardi, M. Bohrer, H. Weber, eds., Proc. SPIE2206, 144–153 (1994).
[CrossRef]

Appl. Opt. (4)

IEEE J. Quantum Electron. (3)

W. W. Rigrod, “Homogeneously broadened CW lasers with uniform distributed loss,” IEEE J. Quantum Electron. QE-14, 377–381 (1978).
[CrossRef]

P. Di Lazzaro, T. Hermsen, C. E. Zheng, “A generalization of the self-filtering unstable resonator,” IEEE J. Quantum Electron. QE-24, 1543–1547 (1988).
[CrossRef]

V. Boffa, P. Di Lazzaro, G. P. Gallerano, G. Giordano, T. Hermsen, T. Letardi, C. E. Zheng, “Self-filtering unstable resonator operation of XeCl laser,” IEEE J. Quantum Electron. QE-23, 1241–1244 (1987).
[CrossRef]

Opt. Commun. (5)

S. Bollanti, P. Di Lazzaro, F. Flora, T. Letardi, D. Murra, C. Petrucci, O. Uteza, “Study of a compact three-electrode oscillator–amplifier excimer laser system,” Opt. Commun. 132, 565–573 (1996).
[CrossRef]

P. G. Gobbi, G. C. Reali, “A novel unstable resonator configuration with a self filtering aperture,” Opt. Commun. 52, 195–198 (1984).
[CrossRef]

P. Di Lazzaro, T. Hermsen, T. Letardi, C. E. Zheng, “Self-filtering unstable resonator: an approximate analytical model with comparison to computed and XeCl laser experimental results,” Opt. Commun. 61, 393–396 (1987).
[CrossRef]

A. E. Siegman, “Performance limitations of the self-filtering unstable resonator,” Opt. Commun. 88, 295–297 (1992).
[CrossRef]

R. Barbini, A. Ghigo, M. Giorgi, K. N. Iyer, A. Palucci, S. Ribezzo, “Injection locked single mode high power low divergence TEA CO laser using SFUR configuration,” Opt. Commun. 60, 239–243 (1986).
[CrossRef]

Opt. Quantum Electron. (1)

J. W. Chen, V. Nassisi, M. R. Perrone, “High brightness operation of a XeCl laser with negative branch unstable resonators,” Opt. Quantum Electron. 23, 35–44 (1991).
[CrossRef]

Other (6)

C. Petrucci, “Caratterizzazione sperimentale e numerica di un laser a XeCl operante con un risonatore instabile autofiltrante generalizzato,” thesis in Physics (University La Sapienza, Rome, Italy, 1993–94).

S. Bollanti, P. Di Lazzaro, F. Flora, G. Giordano, T. Letardi, C. Petrucci, G. Schina, C. E. Zheng, “Compact three electrodes excimer laser ianus for a POPA optical system,” in High-Power Gas and Solid State Lasers, D. Schuoecker, T. Letardi, M. Bohrer, H. Weber, eds., Proc. SPIE2206, 144–153 (1994).
[CrossRef]

A. Bianchi, A. Ferrario, P. G. Gobbi, C. Malvicini, G. C. Reali, “Characterization of a modified SFUR Nd:YAG oscillator in various pulsed regimes,” in 1986 European Conference on Optics, Optical Systems and Applications, S. Sotini, S. Trigari, eds., Proc. SPIE701, 132–135 (1986).
[CrossRef]

P. G. Gobbi, G. C. Reali, “Numerical study of a self-filtering unstable resonator,” in Refereed Proceedings of the Southwestern Conference on Optics, S. C. Stotlar, R. S. McDowell, eds., Proc. SPIE540, 119–123 (1985).

M. Born, E. Wolf, Principles of Optics (Pergamon, London, 1980).

F. Flora, M. Portaccio, A. Torre, “Diffraction numerical simulation of a high-power excimer laser performance,” in 9th International Symposium on Gas Flow and Chemical Lasers, C. Fotakis, C. Kalpouzos, T. G. Papazoglou, eds., Proc. SPIE1810, 422–425 (1992).
[CrossRef]

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Figures (12)

Fig. 1
Fig. 1

(a) SFUR and (b) GSFUR configurations.

Fig. 2
Fig. 2

Basic scheme of the gain GSFUR modeled in the numerical simulation. The distances z 1 and z 2 have the experimental value of z 1 = z 2 = 25 cm.

Fig. 3
Fig. 3

Parabolic behavior of the small-signal gain coefficient g 0 versus the dimensionless time τ. The dotted line reproduces the threshold condition g 0 = g 0th.

Fig. 4
Fig. 4

Intensity profiles of the near field at different times: (a) τ = 0, (b) τ = 4.5, (c) τ = 7.5, (d) τ = 13.5.

Fig. 5
Fig. 5

Phase distributions of the near field corresponding to the intensity profiles of Fig. 4: (a) τ = 0, (b) τ = 4.5, (c) τ = 7.5, (d) τ = 13.5.

Fig. 6
Fig. 6

Far-field intensity profiles at different times: (a) τ = 0, (b) τ = 1.5, (c) τ = 4.5, (d) τ = 13.5.

Fig. 7
Fig. 7

Numerical half-angle beam divergence Θ/2 versus time.

Fig. 8
Fig. 8

Near-field energy density numerical distribution (continuous curve) compared with the measured profile (circles) of the laser pulse energy density along the x axis.

Fig. 9
Fig. 9

(a) Numerical and (b) experimental temporal behavior of the laser pulse.

Fig. 10
Fig. 10

Normalized space integral of the far-field energy density distribution versus x (continuous curve). The circles reproduce the experimental data.

Fig. 11
Fig. 11

Normalized space integral of the corrected far-field energy density distribution versus x (continuous curve). The circles represent the experimental data as in Fig. 10.

Fig. 12
Fig. 12

Near-field intensity distributions in a passive GSFUR at different times: (a) τ = 0, (b) τ = 1, (c) τ = 2, and (d) τ = 4. The dotted curve in (d) reproduces the analytical profile that was expected from the SFUR configuration.

Equations (7)

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Isp=gI2τ2τsp Δz,
G1+12π2NF1; Np2Gπ22, Np4GG+1NF,
L1=1M-Mf22=197 cm,  L2=1-1Mf2=56 cm,  a=0.61λf21-1M21/2=0.30 mm,
aPH=0.5λf21-1M21/2=0.28 mm,
2M exp2g0th-αd=1,
δ  1-2M,
Ixexp-2x/W2

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