Propagation and interaction of ultra-short pulses in quadratic crystals with controlled dispersion

Propagation of ultra-short optical pulses in an environment with quadratic nonlinearity and modulated dispersion is studied. It is shown that periodic modulation of the velocity-mismatch sign and of the third-order dispersion coefficient allows one to suppress pulse scattering and decompression, which noticeably increases their interaction efficiency. Original Russian Text ? A.A. Ivanov, B.B. Petrov, C.C. Sidorov, 2009, published in Vestnik Moskovskogo Universiteta. Fizika, 2009, No. 1, pp. 90–92.