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Optical switch device

  • US 10,448,128 B2
  • Filed: 01/26/2017
  • Issued: 10/15/2019
  • Est. Priority Date: 01/29/2016
  • Status: Active Grant
First Claim
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1. An optical switch device comprising:

  • N (N is a natural number larger than or equal to

         2) multiplexers each of which multiplexes light beams with at most M (M is a natural number larger than or equal to

         2) different wavelengths and outputs a multiplexed light beam;

    N optical splitters each of which splits the multiplexed light beam from a corresponding one of the N multiplexers into MN split light beams;

    MN N×

    1 optical switches each of which selects, from among the split light beams from the N optical splitters, a split light beam corresponding to one multiplexer among the N multiplexers; and

    MN tunable filters each of which selects a light beam with any one wavelength from among the light beams with the at most M different wavelengths multiplexed by the one multiplexer selected by a corresponding one of the MN N×

    1 optical switches,wherein the N optical splitters are each configured by combining an optical splitter and a plurality of wavelength selective switches or a wavelength selective switch and a plurality of optical splitters.

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