Abstract
We propose new planar X-junctions and multi-port devices written by spatial vector solitons, which are composed of two (or more) nonlinearly coupled components in Kerr-type media. Such devices have no radiation losses at a given wavelength. We demonstrate that, for the same relative angle between the channels of the X-junctions, one can vary the transmission coefficients into the output channels by adjusting the polarizations of vector solitons. We determine analytically the transmission properties of the proposed devices.
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