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Theoretical analysis of the gain bandwidth for noncollinear parametric amplification of ultrafast pulses

: Schimpf, D.N.; Rothhardt, J.; Limpert, J.; Tünnermann, A.; Hanna, D.C.


Journal of the Optical Society of America. B, Optical physics 24 (2007), No.11, pp.2837-2846
ISSN: 0740-3224
ISSN: 1520-8540
Journal Article
Fraunhofer IOF ()

The choice of optimum phase-matching conditions for nobcollinear optical parametric amplifiers is usually made on the basis of the linear spectral dispersion characteristics of the anisotropic nonlinear crystal. However, for high-peak-power operation, where pump depletion is involved, it is shown that the tolerance of the parametric gain with regard to k-vector mismatch is to change the optimum phase-matching parameters. Our calculations show that, with the revised parameters, an enhancement in peak power approaching 50% could be achieved.