In uence of nonlinear coupling of pulses on spatio-temporal compression
نویسنده
چکیده
Properties of a novel con guration of an optical (spatio-temporal) pulse compressor, that is based on a Kerr-type planar waveguide into which two pulses are simultaneously launched, are studied. It is assumed that the pulse which is the subject of the compression propagates in the anomalous dispersion regime, while the auxiliary pulse is in normal dispersion. The best parameters of the proposed compressor are obtained when duration of the auxiliary pulse is so large that this dispersion can be neglected, while energy of the second pulse is above the threshold of rst-order soliton generation. It is observed that in such a con guration the compression occurs simultaneously with the generation of a soliton-like solution. It is argued that the proposed con guration with two simultaneously propagating pulses has advantages over the con guration with a single pulse, namely the maximal compression factor and the optimal length of the compressor is, respectively, more than 3 times larger and, at least, 10 times greater than the corresponding values of the compressor with a single pulse. It is also demonstrated that such a compressor can be considered as a universal device, since its operation depends only slightly on the initial parameters of the pulse subject to the compression.
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