| 摘要 |
<p>A planar optical switch (10) comprises a first planar optical waveguide (12) and a second planar optical waveguide (14) that is arranged in the plane of and inclined to the first optical waveguide (12). A coupling element, preferably a prism (26), is provided that is made of a refractive material. The coupling element (26) is movably (32) arranged between a coupling position and a non-coupling position. The coupling element has a first (28) and a second (30) surface that, if the coupling element (26) is in the coupling position, face a lateral surface (46) the first optical waveguide (12) and a lateral surface (48) of the second optical waveguide (14), respectively, in such a way that a substantial fraction of radiation guided in the first optical waveguide (12) is coupled via the coupling element (26) into the second optical waveguide (14) (Fig. 1). <IMAGE> <IMAGE></p> |
