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Mirror control of micro-electro-mechanical optical cross connect switch

  • US 6,427,038 B1
  • Filed: 08/15/2000
  • Issued: 07/30/2002
  • Est. Priority Date: 08/15/2000
  • Status: Expired due to Term
First Claim
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1. An optical switch comprising:

  • an input optical fiber;

    an output optical fiber;

    a mirror that is positionable to reflect a lightwave signal from the input optical fiber into the output optical fiber; and

    a control circuit to sense a misalignment error and adjust the mirror to correct the misalignment error;

    the control circuit includes input and output calibration fibers co-parallel with respective input and output optical fibers;

    the input calibration fiber is displaced with respect to the input optical fiber, both fibers being in a first plane that is perpendicular to a plane of the substrate; and

    the output calibration fiber is displaced with respect to the output optical fiber, both fibers being in a second plane that is perpendicular to the plane of the substrate.

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