Observation of mutual trapping and dragging of two-dimensional spatial solitary waves in a quadratic medium.

We report experimental evidence for trapping of two-dimensional (2 + 1) spatial solitary waves in a KTP crystal resulting from its second-order nonlinearity. In addition, dragging of the solitary beams is observed as a function of fundamental input intensity and of the relative phase difference between the fundamental and the second harmonic when beams at both frequencies are coherently launched.

[1]  George I. Stegeman,et al.  Nonlinear materials for information processing and communications , 1996, Philosophical Transactions of the Royal Society of London. Series A: Mathematical, Physical and Engineering Sciences.

[2]  Stegeman,et al.  Observation of two-dimensional spatial solitary waves in a quadratic medium. , 1995, Physical review letters.

[3]  C. Menyuk.  Stability of solitons in birefringent optical fibers. II. Arbitrary amplitudes , 1988 .

[4]  G I Stegeman,et al.  Large nonlinear phase modulation in quasi-phase-matched KTP waveguides as a result of cascaded second-order processes. , 1993, Optics letters.

[5]  Stegeman,et al.  One-dimensional spatial solitary waves due to cascaded second-order nonlinearities in planar waveguides. , 1996, Physical review. E, Statistical physics, plasmas, fluids, and related interdisciplinary topics.

[6]  Y. Silberberg.  Collapse of optical pulses. , 1990, Optics letters.