Auszugsweise vorgetragen auf der 4. Frühjahrsschule der Problemgruppe Optik 1972 in Tabarz (s. [5]) und auf der VI. Allunionstagung über nichtlineare Optik, Minsk 1972.
- Autor(in)
- Referenz
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1 Brunner, W., Fortschr. Phys. 20, H. 11 (1972) 629.
2 Steudel, H., Frahm, J., Ann. Physik, Leipzig 28 (1972) 255.
3 Becker, M., Fischer, R., Frahm, J., Güther, R., Steudel, H., Vortrag auf der 2. Internationalen Tagung „Laser und ihre Anwendungen“. Dresden, 4. - 9. 6. 1973, Kurzfassungen Teil 2, K 60.
4 Frahm, J., Fischer, R., Ann. Physik, Leipzig 30 (1973) 6.
5 Fischer, R., Frahm, J., Exp. Tech. Phys. 20 (1972) 533.
6 Frahm, J., Ann. Physik, Leipzig 30 (1973) 173.
7 Russu, V., Fischer, R. (in Vorbereitung).
Harris, S. E., Proc. IEEE 57 (1969) 2096.
Sutchik, M. M., Fortus, W. B., Freidman, G. I., Radiofizika 13 (1970) 631.
- Seitenbereich
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0143 - 0170
- Zusammenfsg.
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The processes of parametric amplification and oscillation in a medium with cubic polarization are investigated theoretically taking into consideration the depletion of the pump wave. We suppose that phase-matching is realized exactly (a possible nonlinear detuning of the exact phase-matching should be compensated by a suitable subsequent adjustment of the frequencies). A consequence of linear losses is the appearance of a threshold for the parametric amplification. There exist a maximum length, a minimum length and an optimum length of the nonlinear medium for the process of parametric amplification.
The threshold intensity, the optimum length of the nonlinear medium and the optimum reflection coefficient for outcoupling are determined for two arrangements of the double resonant parametric four-photon oscillator (ring resonator, F<small>ABRY</small>-P<small>EROT</small> resonator). It is shown that for the above mentioned arrangements of the single resonant and the double resonant four-photon oscillator the efficiency is a monotonous function of the threshold excess. On the contrary in case of the three-photon oscillator there exists an optimum value of the threshold excess.
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- Forschungsartikel