Jpn. J. Appl. Phys. 34 (1995) pp. 3552-3561  |Next Article|  |Table of Contents|
|Full Text PDF (1619K)| |Buy This Article|

Peak Intensity Enhancement and Pulse Compression of a Picosecond Laser Pulse by Frequency Doubling with a Predelay

Tiejun Zhang, Yoshiaki Kato, Koichi Yamakawa, Hiroyuki Daido, Yasukazu Izawa

(Received October 15, 1994; accepted for publication April 13, 1995)

Theoretical investigation of frequency doubling of a short-duration, high-intensity laser pulse in a potassium dihydrogen phosphate (KDP) crystal is given. The coupled nonlinear equations for the parametric process, including the third-order nonlinear susceptibility, have been solved. By applying a time delay between the extraordinary and ordinary waves for the fundamental pulse in type-II phase matching, the group velocity mismatch and the nonlinear phase shift can be made to compensate each other, resulting in peak intensity enhancement and pulse width compression. The optimum conditions for the incident intensity, the crystal thickness and the predelay time have been derived. It is shown that intensity conversion efficiency of 440% accompanied by pulse width reduction from 1 ps fundamental pulse to 100 fs second-harmonic pulse is achieved for incident intensity of 50 GW/cm².

URL: http://jjap.jsap.jp/link?JJAP/34/3552/
DOI: 10.1143/JJAP.34.3552

References | Citing Articles (11)

1. For example, OSA Proc. Short-Wavelength Coherent Radiation: Generation and Applications, eds. P. H. Bucksbaum and N. M. Ceglio (Optical Society of America, Washington, DC, 1991) Vol. 11.
   
2. P. Maine, D. Strickland, P. Bado, M. Pessot and G. Mourou: IEEE J. Quantum Electron. 24 (1988) 398[CrossRef].
   
3. Y. Wang and R. Dragila: Phys. Rev. A 41 (1990) 5645[APS].
   
4. C. E. Max and K. G. Estabrook: Comments Plasma Phys. Controlled Fusion 5 (1980) 239[IoP STACKS].
   
5. R. L. McCrory and R. L. Morse: Phys. Rev. Lett. 10 (1977) 544[APS].
   
6. G. Szabo and Zs. Bor: Appl. Phys. B 58 (1994) 237.
   
7. R. C. Eckardt and J. Reintjies: IEEE J. Quantum. Electron. 20 (1984) 1178[CrossRef].
   
8. O. E. Martinez: IEEE J. Quantum. Electron. 25 (1989) 2464[CrossRef].
   
9. A. Fendt, W. Kranitzky, A. Laubereau and W. Kaiser: Opt. Commun. 28 (1979) 142[CrossRef].
   
10. R. Laenen, H. Graener and A. Laubereau: Opt. Lett. 15 (1990) 971.
    
11. Y. Wang, B. Luther-Davies, Y. H. Chuang, R. S. Craxton and D. D. Meyerhofer: Opt. Lett. 16 (1991) 1862.
    
12. Y. Wang and B. Luther-Davies: Opt. Lett. 17 (1992) 1459.
    
13. K. Yamakawa, H. Shiraga, Y. Kato and C. P. J. Barty: Opt. Lett. 16 (1991) 1953.
    
14. C. Rouyer, E. Mazataud, I. Allais, A. Pierre, S. Seznec, C. Sauteret, G. Mourou and A. Migus: Opt. Lett. 3 (1993) 214.
    
15. N. C. Kothari and X. Carlotti: J. Opt. Soc. Am. B 5 (1988) 7561.
    
16. R. D. Richtmyer and K. W. Morton: Difference Methods for Initial-Value Problems, (Interscience Publishers, New York, 1967) Part I.
    
17. R. S. Craxton: Opt. Commun. 34 (1980) 474.
    
18. F. Zernike: J. Opt. Soc. Am. 54 (1964) 1215.
    
19. R. T. Craxton: IEEE J. Quantum Electron. 17 (1981) 1771.
    
20. W. Choe, P. P. Baneriee and F. C. Caimi: J. Opt. Soc. Am. B 8 (1991) 1013.
    
21. D. C. Brown: High-Peak-Power Nd:Glass Laser Systems (Springer-Verlag, Berlin, 1981).
    
22. D. Kuhlke and U. Herpers: Opt. Commun. 69 (1988) 75.
    
23. T. B. Rajumikhina, L. S. Telegin, A. I. Kholodnykh and A. S. Chirkin: Sov. J. Quantum Electron. 14 (1984) 1358.
    
24. A. E. Seigman: Lasers (University Science Books, Mill Valley, 1986).
    
25. W. L. Smith, J. H. Bechtel and N. Bloembergen: Phys. Rev. B 12 (1975) 706[APS].