Patent ID: 7043111
Filing Date: 2006-05-09
Classification: G02B,G02F

Abstract:
1. An optical switch module comprising: a collimator portion for collimating a plurality of optical signals individually by two-dimensional lenses respectively; a plurality of first optical deflector elements for switching propagation directions of the optical signals, which passed through the collimator portion, individually by using an electrooptic effect respectively; a common optical waveguide for propagating the optical signals that passed through the plurality of first optical deflector elements respectively; a plurality of second optical deflector elements for switching the propagation directions of the optical signals, which passed through the common optical waveguide, individually by using the electrooptic effect respectively; and a light converging portion for converging the optical signals, which passed through the plurality of second optical deflector elements, individually by the two-dimensional lenses respectively; wherein at least any one of the collimator portion and the light converging portion is provided with the coupling structural body of optical parts, constructed by arranging a first optical waveguide in which an underlying cladding layer with a refractive index nuj, a core layer with a refractive index ncj, and an overlying cladding layer with a refractive index noj are laminated, and a second optical waveguide in which an underlying cladding layer with a refractive index nuk, a core layer with a refractive index nck, and an overlying cladding layer with a refractive index nok are laminated, are arranged to oppose end surfaces, from which the overlying cladding layer to the underlying cladding layer are exposed, to each other, and then filling a portion between mutual end surfaces with a filling medium with a refractive index ni(j,k), whereby at least one end surface of both end surfaces is formed as a two-dimensional lens and a light propagates from one optical waveguide to other optical waveguide through the filling medium.