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Optical switching element

  • US 20070263953A1
  • Filed: 11/29/2006
  • Published: 11/15/2007
  • Est. Priority Date: 05/12/2006
  • Status: Active Grant
First Claim
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1. An optical switching element comprising:

  • a multimode waveguide for propagating multimode light and having an electro-optical effect;

    one or a plurality of first single mode waveguides connected to one end of the multimode waveguide;

    a plurality of second single mode waveguides connected to the other end of the multimode waveguide;

    a first electrode arranged in the vicinity of one edge on one side of the multimode waveguide;

    a second electrode arranged in the vicinity of the other edge on the same side of the multimode waveguide; and

    a third electrode arranged on the other side of the multimode waveguide,wherein the first electrode and the second electrode being arranged so as to be positioned on luminescent spots in an optical mode field generated by the light propagating through the multimode waveguide, and an optical path being switched between the first single mode waveguide and the second single mode waveguide by applying voltage between the first electrode and the third electrode and between the second electrode and the third electrode.

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